Asbestos job sites in Iowa have been identified as places where workers have been exposed. Exposure to asbestos is the accepted cause of mesothelioma.
| Jobsite Name | City | State |
|---|---|---|
| 7-UP BOTTLING WORKS | DAVENPORT | IA |
| A T & T CO. – UNDERGROUND COAXIAL CABLE BLDG | BOONE | IA |
| A&P SUPERMARKET – S. CLINTON ST. | IOWA CITY | IA |
| A. H. BENNETT CO. | SIOUX CITY | IA |
| A. Y. MCDONALD MFG. COMPANY | WATERLOO | IA |
| A.G. PROCESSING, INCORPORATED | EAGLE GROVE | IA |
| A.M. Bennett Company | Sioux City | IA |
| A.P. GREEN REFRACTORIES COMPANY | DES MOINES | IA |
| A.Y. McDonald Building | Sioux City | IA |
| A.Y. MCDONALD MANUFACTURING COMPANY | DUBUQUE | IA |
| AC GUBERSON CO | DES MOINES | IA |
| ADEL CLAY PROD CO | REDFIELD | IA |
| ADEL CLAY PRODUCTS COMPANY | REDFIELD | IA |
| AG PROCESSING, INCORPORATED, P.O. BOX 2000, 51054 | SERGEANT BLUFF | IA |
| AID INSURANCE BUILDING – 701 5TH AVE | DES MONIES | IA |
| Alcoa | BETTENDORF | IA |
| Alcoa | Riverdale | IA |
| Alcoa | Davenport | IA |
| Alcoa (F/K/A Reynolds Metals) | Davenport | IA |
| Alcoa (F/K/A Reynolds Metals) | East Davenport | IA |
| ALCOA COMPANY | DAVENPORT | IA |
| ALCOA PLANT BLDGS. 816-823 & 701-70 | RIVERDALE | IA |
| ALCOA PLANT BLDGS. 816-823 & 70-701 | RIVERDALE | IA |
| ALCOA PLANT BLDGS. 816-823 AND 701- | RIVERDALE | IA |
| ALL SAINTS CATHOLIC CHURCH | CEDAR RAPIDS | IA |
| ALLIANT POWER COMPANY – DUBUQUE POWER PLANT | DUBUQUE | IA |
| ALLIED CHEMICAL | DUBUQUE | IA |
| Allied Chemical Corp. | Dubuque | IA |
| ALLIED CONSTRUCTION SERVICE, 2122 FLEUR DR. | DES MOINES | IA |
| ALLIED CONSTRUCTION SERVICE, 35TH AND STATE ST. | BETTENDORF | IA |
| ALLIED CONSTRUCTION SERVICE, 412 EAST GRAND AVE. | DES MOINES | IA |
| ALLIED MILLS, INCORPORATED | MASON CITY | IA |
| ALTER CO | DAVENPORT | IA |
| Aluminum Company of America | Davenport | IA |
| ALUMINUM COMPANY OF AMERICA, DAVENPORT WORKS | RIVERDALE | IA |
| ALUMINUM CORPORATION OF AMERICA | RIVERDALE | IA |
| AMANA REFRIGERATION | AMANA | IA |
| Amana Refrigeration Inc. | Amana | IA |
| AMERICAN ALUMINUM CO | WEBSTER CITY | IA |
| AMERICAN CEREAL COMPANY | CEDAR RAPIDS | IA |
| AMERICAN CRYSTAL SUGAR | MASON CITY | IA |
| AMERICAN CRYSTAL SUGAR COMPANY | MASON CITY | IA |
| AMERICAN HERBICIDE PLANT | DUBUQUE | IA |
| AMERICAN HERBICIDE PLANT | MUSCATINE | IA |
| AMERICAN LEGION HALL | HARTLEY | IA |
| AMERICAN REPUBLIC INS CO BLDG | DES MOINES | IA |
| AMERICAN WIRE CLOTH MANUFACTURING COMPANY | CLINTON | IA |
| AMES MUNICIPAL ELCTRIC SYSTEM | AMES | IA |
| AMES MUNICIPAL ELECTRIC | AMES | IA |
| Ames Municipal Utilties | Ames | IA |
| AMES-FARMER CANNING COMPANY | AMES | IA |
| Anamosa Elementary School | Anamosa | IA |
| ANIMAL DISEASES LABORATORY | AMES | IA |
| ANNIS SUPPLY COMPANY | WATERLOO | IA |
| APCO OIL CORPORATION | FORT DODGE | IA |
| ARCHER DANIELS MIDLAND COMPANY | CLINTON | IA |
| ARCHER DANIELS MIDLAND COMPANY | DES MOINES | IA |
| ARCO CHEMICAL | FT MADISON | IA |
| ARMOUR & COMPANY | MASON CITY | IA |
| ARMOUR AND COMPANY | SIOUX CITY | IA |
| ARMOUR DIAL, INCORPORATED | FT. MADISON | IA |
| Armour Plant | Sioux City | IA |
| Armstrong Contracting & Supply Corporation | Harlan | IA |
| ARMSTRONG DEPARTMENT STORE | CEDAR RAPIDS | IA |
| Armstrong High School | Rockwell | IA |
| Armstrong Rubber | Des Moines | IA |
| ARMSTRONG RUBBER COMPANY | DES MOINES | IA |
| ARMSTRONG RUBBER MANUFACTURING COMPANY | DES MOINES | IA |
| ARNOLD ELECTRIC POWER STATION COMPANY – POWER PLANT | OELWEIN | IA |
| ART BROWN MOTORS | DAVENPORT | IA |
| ART GALLERY & MUSEUM | DAVENPORT | IA |
| ATCHINSON, TOPEKA AND SANTA FE RAILWAY COMPANY | FT. MADISON | IA |
| ATCHINSON, TOPEKA AND SANTA FE RAILWAY COMPANY | SHOPTON | IA |
| ATLANTIC MUNICIPAL UTILTITES | ATLANTIC | IA |
| AUGUSTANA LUTHERAN CHURCH | SIOUX CITY | IA |
| Ay McDonald Manufacturing Company | Dubuque | IA |
| BADGER LUTHERAN CHURCH | BADGER | IA |
| BALLSFORD STATION | DES MOINES | IA |
| BANKERS LIFE BUILDING ADDITION | DES MOINES | IA |
| BANKERS TRUST BUILDING | DES MOINES | IA |
| BARNES ELECTRIC LIGHT AND POWER COMPANY – POWER PLANT | MAQUOKETA | IA |
| BASIC SCIENCE BUILDING | IOWA CITY | IA |
| BAXTER MOTOR COMPANY DEALERSHIP | CEDAR RAPIDS | IA |
| BEAVER CHANNEL POWERHOUSE | CLINTON | IA |
| BECK & WAGNER | DANVILLE | IA |
| BENNETT HIGH SCHOOL | BENNETT | IA |
| BERKLEY & CO | SPIRIT LAKE | IA |
| BERKLEY & COMPANY | SPIRIT LAKE | IA |
| BERWANGER BOILER | DUBUQUE | IA |
| BESTWALL GYPSUM COMPANY | FT DODGE | IA |
| BESTWALL GYPSUM COMPANY | FORT DODGE | IA |
| BETHESDA HOSPITAL/LUTHERAN HOSPITAL | FORT DODGE | IA |
| BETTENDORF COMMUNITY SCHOOL | BETTENDORF | IA |
| BETTENDORF HIGH SCHOOL | BETTENDORF | IA |
| Bettendorf Powerhouse | Riverside | IA |
| BISHOP MANUFACTURING | CLARINDA | IA |
| BIXBY CO INC W H | DES MOINES | IA |
| BIXBY W H INC | DAVENPORT | IA |
| BIXBY W H INC | DES MOINES | IA |
| BIXBY W I INC | DAVENPORT | IA |
| BIXBY W I INC | DES MOINES | IA |
| BIXBY, W.H. INC | DAVENPORT | IA |
| BIXBY, W.H. INC | DES MOINES | IA |
| BIXBY, W.H. INC. | DES MOINES | IA |
| BLACKHAWK FOUNDRY | DAVENPORT | IA |
| BOARD OF CONTROL OF STATE HOSPTALS | INDEPENDENCE | IA |
| BOARD OF CONTROL OF STATE INSTITUTIONS | INDEPENDENCE | IA |
| BOARD OF CONTROL OF STATE INSTITUTIONS | DES MOINES | IA |
| BORDEN CHEMICAL DIVISION OF BORDEN, INCORPORATED | WATERLOO | IA |
| BOWLIUM/TROPIC LANES | CEDAR RAPIDS | IA |
| BOWL-MOR ALLEYS | SIOUX CITY | IA |
| BRAMMER MANUFACTURING | DAVENPORT | IA |
| BRAMMER MFG CO | DAVENPORT | IA |
| BRICE GAS AND ELECTRIC COMPANY – MASON CITY COAL GASIFICATION PLANT | MASON CITY | IA |
| BRIDGESTONE FIRESTONE | DES MOINES | IA |
| BRITT UNITED METHODIST CHURCH | BRITT | IA |
| BRITTAIN & COMPANY | MARSHALLTOWN | IA |
| BROWN DERBY RESTAURANT | CARROLL | IA |
| Brown Lumber Company | Raymond | IA |
| BROWN PAPER COMPANY | FT. MADISON | IA |
| BRUNSWICK-BALKE-COLLENDER COMPANY | DUBUQUE | IA |
| BUILDERS MATERIALS INC | CEDAR RAPIDS | IA |
| Burlington Generation Station | Burlington | IA |
| BURLINGTON HIGH SCHOOL | BURLINGTON | IA |
| Burlington Northern Railroad | Burlington | IA |
| BURLINGTON NORTHERN SANTA FE RAILROAD | CLINTON | IA |
| BURLINGTON ORDNANCE WORKS | BURLINGTON | IA |
| BURPEE SEED COMPANY | CLINTON | IA |
| C H MCGUINESS CO | DES MOINES | IA |
| C. GILBERT | DES MOINES | IA |
| C.F. BRAUN & COMPANY | FORT MADISON | IA |
| C.H. MCGUINESS COMPANY | DES MOINES | IA |
| C.P. BRAUN & COMPANY | FORT MADISON | IA |
| CALIFORNIA CHEMICAL | FORT MADISON | IA |
| CALIFORNIA CHEMICAL COMPANY | FT MADISON | IA |
| CAMANCHE ELEMENTARY SCHOOL | CAMANCHE | IA |
| CAMPBELL CHAIN COMPANY | W BURLINGTON | IA |
| CANFIELD HOTEL – BAR | DUBUQUE | IA |
| Can-Tex Industries | Ottumwa | IA |
| CANTEX INDUSTRIES BRICK | OTTUMWA | IA |
| CANTEX INDUSTRIES BRICK | REDFIELD | IA |
| CAN-TEX INDUSTRIES BRICK | DES MOINES | IA |
| CAN-TEX INDUSTRIES BRICK | OTTUMWA | IA |
| CAN-TEX INDUSTRIES DIV | REDFIELD | IA |
| CANTEX INDUSTRIES IOWA | DES MOINES | IA |
| CAPITAL CITY BANK BUILDING | DES MOINES | IA |
| CAPITOL SQUARE | DES MOINES | IA |
| CARADCO CORPORATION | DUBUQUE | IA |
| CARDACO, INCORPORATED | DUBUQUE | IA |
| CARGILL COMPANY | WASHINGTON | IA |
| CARGILL INC | CEDAR RAPIDS | IA |
| CARGILL SOYBEAN PLANT | DES MOINES | IA |
| Cargill, Inc. | Cedar Rapids | IA |
| CARGILL, INCORPORATED | DES MOINES | IA |
| CARGILL, INCORPORATED | CEDAR RAPIDS | IA |
| CARGILL, INCORPORATED | OTTUMWA | IA |
| CARGILL, INCORPORATED | EDDYVILLE | IA |
| CARGILL, INCORPORATED, EDDYVILLE CORN MILLING | EDDYVILLE | IA |
| CARNATION CO. | WAVERLY | IA |
| CARNATION CO. – WAVERLY IOWA PLANT | WAVERLY | IA |
| CARNATION COMPANY | WAVERLY | IA |
| CARNATION COMPANY PLANT | WAVERLY | IA |
| CARR RYDER AND ADAMS COMPANY | DUBUQUE | IA |
| CARR, ADAMS AND COLLIER COMPANY | DUBUQUE | IA |
| CARROL RENDERING | CARROL | IA |
| CARROLL RECREATION CENTER | CARROLL | IA |
| CASE J I CO | BETTENDORF | IA |
| CASTLE HILL ELEMENTARY SCHOOL – 1729 MAYNARD | WATERLOO | IA |
| CATERPILLAR TRACTOR CO | DAVENPORT | IA |
| CATERPILLAR TRACTOR CO INC – NEW PARTS PLANT | MOUNT JOY | IA |
| CATERPILLAR TRACTOR CO. | MOUNT JOY | IA |
| CATERPILLAR TRACTOR COMPANY | DAVENPORT | IA |
| CEDAR FALLS PAPER MANUFACTURING COMPANY | CEDAR FALLS | IA |
| CEDAR FALLS UTILITIES – Streeter Generating Station | CEDAR FALLS | IA |
| Cedar Falls Utilities – Streeter Unit 7 | Cedar Falls | IA |
| CEDAR RAPIDS AND IOWA CITY RAILWAY AND LIGHT COMPANY – POWER PLANT | CEDAR RAPIDS | IA |
| CEDAR RAPIDS GALVANIZING | CEDAR RAPIDS | IA |
| CEDAR RAPIDS MEATS, 16TH AVE. & 3RD ST. SOUTHEAST, 52401 | CEDAR RAPIDS | IA |
| CEDAR RAPIDS MUNICIPAL AIRPORT | CEDAR RAPIDS | IA |
| Cedar Rapids Nuclear Powerhouse | Cedar Rapids | IA |
| CELOTEX CORP | FT DODGE | IA |
| CELOTEX CORP. | FORT DODGE | IA |
| CELOTEX CORPORATION | FORT DODGE | IA |
| CELOTEX CORPORATION | FT DODGE | IA |
| CENTER POINT SCHOOL | CEDAR RAPIDS | IA |
| CENTERVILLE LIGHT AND TRACTION COMPANY – POWER PLANT | CENTERVILLE | IA |
| Central Asbestos & Supply | Des Moines | IA |
| CENTRAL CATHOLIC HIGH SCHOOL | DUBUQUE | IA |
| CENTRAL COLLEGE – LEARNING RESOURCE CENTER | PELLA | IA |
| CENTRAL FIRE STATION | DAVENPORT | IA |
| CENTRAL IOWA HEATING | DES MOINES | IA |
| CENTRAL RUBBER & SUPPLY CO. – STATE SANITARIUM | OAKDALE | IA |
| CENTRAL SERVICE CO | DES MOINES | IA |
| CENTRAL STEEL | CLINTON | IA |
| CENTRAL STEEL TUBE CO | CLINTON | IA |
| CENTRAL STEEL TUBE COMPANY | CLINTON | IA |
| CENTRAL STEEL TUBE COMPANY | CLINTON & CAMANCHE | IA |
| CEPEX MIDWEST PLANT | FORT MADISON | IA |
| CERTAINTEED PRODUCTS CORPORATION | FT. DODGE | IA |
| CH MC GUINESS INC | DAVENPORT | IA |
| CHAMBERLAIN CORPORATION | WATERLOO | IA |
| Chamberlain Manufacturing | Waterloo | IA |
| Chamberlain Manufacturing Company | Waterloo | IA |
| CHAMBERLAIN MFG CO | WATERLOO | IA |
| Champion International | Clinton | IA |
| Chemplex | Clinton | IA |
| CHEMPLEX CO | FORT MADISON | IA |
| CHEMPLEX CONSTR PETROCHEM | CLINTON | IA |
| CHEMPLEX CONSTR. CO. | CLINTON | IA |
| CHEMPLEX CONSTRA PETROCHEM | CLINTON | IA |
| CHEMPLEX CONSTRUCTION | CLINTON | IA |
| CHEMPLEX CONSTRUCTION COMPANY | CLINTON | IA |
| CHEMPLEX CONSTRUCTION COMPANY – CHEMICAL PLANT | CLINTON | IA |
| CHEMPLEX CONSTRUCTION COMPANY, PETROCHEMICAL | CLINTON | IA |
| CHEMPLEX CORPORATION | CLINTON | IA |
| CHEMPLEX PLANT | WEST CLINTON | IA |
| CHEROKEE STATE HOSPITAL | CHEROKEE | IA |
| CHEVRON CHEMICAL CO | FORT MADISON | IA |
| CHEVRON CHEMICAL CO – STOREHOUSE | FORT MADISON | IA |
| CHEVRON CHEMICAL COMPANY | FORT MADISON | IA |
| CHEVRON CHEMICAL COMPANY | FT. MADISON | IA |
| CHEVRON OIL COMPANY | FORT MADISON | IA |
| CHICAGO & NORTHWESTERN RAILROAD | CLINTON | IA |
| CHICAGO BURLINGTON AND QUINCY RAILROAD COMPANY | BURLINGTON | IA |
| CHICAGO GREAT WESTERN RAILWAY | OELWEIN | IA |
| Chicago Northwestern Railroad | Clinton | IA |
| CHICAGO ROCK ISLAND AND PACIFIC RAILWAY COMPANY | MANLY | IA |
| CHICAGO, BURLINGTON & QUINCY RAILROAD | OTTUMWA | IA |
| CITY ICE COMPANY | DES MOINES | IA |
| CITY LAUNDERING CO | DELWEIN | IA |
| CITY OF AMES – MUNICIPAL ELECTRIC UTILITY – Power Plant #2 | Ames | IA |
| CITY OF ATLANTIC – Electric Generating Station | ATLANTIC | IA |
| CITY OF HARTLEY – MUNICIPAL POWER PLANT | HARTLEY | IA |
| City of Muscatine Power | Muscatine | IA |
| CITY PLUMBING SUPPLY | DES MOINES | IA |
| CLARINDA STATE HOSPITAL | CLARINDA | IA |
| CLEGG PARK ELEMENTARY SCHOOL | WEST DES MOINES | IA |
| Climax Molybdenum Company | Fort Madison | IA |
| CLINTON COMPANY | CLINTON | IA |
| CLINTON CORN PROCESSING C | CLINTON | IA |
| CLINTON CORN PROCESSING CO. | CLINTON | IA |
| CLINTON CORN PROCESSING CO. – NEW BOILER ADDITION | CLINTON | IA |
| CLINTON CORN PROCESSING COMPANY | CLINTON | IA |
| CLINTON CORN PROCESSING COMPANY (a/k/a Archer Daniels) | CLINTON | IA |
| CLINTON CORN PROCESSING COMPANY, DIVISION OF STANDARD BRANDS, INCORPORATED | CLINTON | IA |
| CLINTON CORN SYRUP REFINING COMPANY | CLINTON | IA |
| CLINTON ENGINES CORP | MAQUOKETA | IA |
| CLINTON ENGINES CORPORATION | MAQUOKETA | IA |
| CLINTON GENERAL HOSPITAL | CLINTON | IA |
| CLINTON INDUSTRIES | CLINTON | IA |
| CLINTON INDUSTRIES, INCORPORATED | CLINTON | IA |
| CLINTON PRODUCTS COMPANY | CLINTON | IA |
| CLINTON STEAM LAUNDRY COMPANY – STEAM PLANT | CLINTON | IA |
| CLINTON SUGAR REFINING COMPANY | CLINTON | IA |
| Clow Corporation – New Foundry | Oskaloosa | IA |
| COBBLESTONE INN | STORM LAKE | IA |
| COE COLLEGE GYMNASIUM | CEDAR RAPIDS | IA |
| COGGON MUNICIPAL LIGHT PLANT | COGGON | IA |
| COLE RENDERING COMPANY | WATERLOO | IA |
| COLLEGIATE PRESBYTERIAN CHURCH | AMES | IA |
| COLLINS RADIO | CEDAR RAPIDS | IA |
| COLLINS RADIO – COMPUTER DATA BLDG | CEDAR RAPIDS | IA |
| Collins Radio Building | Cedar Rapids | IA |
| CONCRETE PRODUCTS – MANUFACTURING PLANT | SIOUX CITY | IA |
| CONSOLIDATED PACKAGING CORPORATION | FT. MADISON | IA |
| Consolidated Packing | Burlington | IA |
| CONSOLIDATED PACKING COMPANY | FORT MADISON | IA |
| CONSUMERS COOP – CHEMICAL PLT | FORT DODGE | IA |
| CONSUMERS COOP – CHEMICAL PLT | PORT DODGE | IA |
| Consumers Cooperative Assoc. | Fort Dodge | IA |
| CO-OP CHEMICAL | FORT DODGE | IA |
| Cooper Manuf Acturing Company | Marshalltown | IA |
| CORN BELT PACKING COMPANY | DUBUQUE | IA |
| Corn Belt Power Co-op | Humbolt | IA |
| Corn Belt Power Cooperative | Humbolt | IA |
| Corn Belt Power Cooperative | Spencer | IA |
| CORN BELT POWER COOPERATIVE – EARL F. WISDOM GENERATING STATION | SPENCER | IA |
| CORN BELT POWER COOPERATIVE – HUMBOLDT STEAM PLANT | HUMBOLDT | IA |
| CORN BELT POWER COOPERATIVE – STEAM PLANT | HUMBOLDT | IA |
| CORN BELT POWER CORPORATION | HUMBOLDT | IA |
| CORN STARCH & SYRUP | CEDAR RAPIDS | IA |
| CORN SWEETENERS INC | CEDAR RAPIDS | IA |
| Council Bluffs Powerhouse | Council Bluffs | IA |
| COVENANT MEDICAL CENTER | WATERLOO | IA |
| CRAEMER PRODUCE COMPANY | WATERLOO | IA |
| CRANDIC RAILROAD WHSE. | IOWA CITY | IA |
| CRANDON MILL DIVISION P.O. BOX 250, 52627 | FT. MADISON | IA |
| CRANDON PAPER MILLS, INCORPORATED | FT MADISON | IA |
| Crane Corporation | Washington | IA |
| CRESCO CO-OP CREAMERY | CRESCO | IA |
| CROSSROADS PARK ELEMENTARY SCHOOL | WEST DES MOINES | IA |
| CROSSROADS SQUARE | WATERLOO | IA |
| CRYSTAL HEATING & PLUMBING | WAVERLY | IA |
| CRYSTAL PLUMBING AND HEATING | WAVERLY | IA |
| Cudahy Packing Company | Sioux City | IA |
| CURTIS BROTHERS AND COMPANY | CLINTON | IA |
| Dadco Corp | Davenport | IA |
| DARLING INTERNATIONAL | SIOUX CITY | IA |
| DAVENPORT BANK BLDG | DAVENPORT | IA |
| DAVENPORT BANK BUILDING | DAVENPORT | IA |
| DAVENPORT CENTRAL HIGH SCHOOL | DAVENPORT | IA |
| DAVENPORT COMMUNITY SCHOOL | DAVENPORT | IA |
| DAVENPORT GAS AND ELECTRIC COMPANY – ELECTRIC LIGHT PLANT | DAVENPORT | IA |
| DAVENPORT GLUCOSE MANUFACTURING COMPANY | DAVENPORT | IA |
| Davenport Iowa Wastesater Treatment Plant | Davenport | IA |
| DAVENPORT MACHINE | MUSCATINE | IA |
| DAVENPORT MACHINE & FOUNDRY CO. FOR CARGILL GRAIN | CEDAR RAPIDS | IA |
| Davenport West High School | Davenport | IA |
| DAVENPORT WORKS | RIVERDALE | IA |
| DELORES APARTMENTS – SOUTH OAK AVENUE | AMES | IA |
| DEMCO INC | W DES MOINES | IA |
| DENISON HOTEL | DENSION | IA |
| DENISON HOTEL | DENISON | IA |
| DEPARTMENT OF ME | AMES | IA |
| DES MOINES ART CENTER | DES MOINES | IA |
| DES MOINES BREWING COMPANY | DES MOINES | IA |
| DES MOINES CITY RAILWAY COMPANY | DES MOINES | IA |
| Des Moines Company Drainage | Burlington | IA |
| DES MOINES EDISON LIGHT COMPANY – POWER PLANT | DES MOINES | IA |
| DES MOINES EMBASSY CLUB | DES MOINES | IA |
| DES MOINES INTERNATIONAL AIRPORT | DES MONIES | IA |
| DES MOINES REGISTER & TRIBUNE BUILDING | DES MOINES | IA |
| DES MOINES WOMEN’S CLUB – HOYT SHERMAN PLACE | DES MOINES | IA |
| Dewey Port TL Cem | Linwood | IA |
| DEWEY PORTLAND CEMENT | DAVENPORT | IA |
| DEWEY PORTLAND CEMENT COMPANY | DAVENPORT | IA |
| DIAL CORPORATION | FT. MADISON | IA |
| DICKINSON COUNTY MEMORIAL HOSPITAL | SPIRIT LAKE | IA |
| DONOHOO STEEL TREATING | BETTENDORF | IA |
| DONOHOO STEEL TREATING COMPANY | BETTENDORF | IA |
| DORMAN FIELD HOUSE | FAYETTE | IA |
| DOUGLAS COMPANY | CEDAR RAPIDS | IA |
| DOWNING BOX COMPANY | CEDAR RAPIDS | IA |
| DR. SALSBURY’S LABORATORY | CHARLES CITY | IA |
| DRAKE UNIVERSITY | DES MOINES | IA |
| DRAKE UNIVERSITY – OLMSTED CENTER | DES MOINES | IA |
| Drake University, Ingham Hall of Science | Des Moines | IA |
| DRYDEN/SHELLER GLOBE | KEOKUK | IA |
| DUANE ARNOLD ENERGY CENTER | PALO | IA |
| Duane Arnold Nuclear Powerhouse | Cedar Rapids | IA |
| Duane Arnold Nuclear Powerhouses | Palo | IA |
| Dubuque Packing Company | Dubuque | IA |
| DUBUQUE STEAM SUPPLY COMPANY – STEAM PLANT | DUBUQUE | IA |
| DUBUQUE STONE PRODUCTS | DUBUQUE | IA |
| DUBUQUE STOVE PRODUCTS | DUBUQUE | IA |
| DUNCOMBE ELEMENTARY SCHOOL | FORT DODGE | IA |
| DUNOHOD STEEL TREATING | BETTENDORF | IA |
| DUPONT CLINTON PLANT | CLINTON | IA |
| Dupont Plant | Clinton | IA |
| E I Dupont De Nemours & Co | Clinton | IA |
| E. I. DUPONT DE NEMOURS & CO. | CLINTON | IA |
| E. I. Dupont De Nemours Co | Clinton | IA |
| E.I. DU PONT DE NEMOURS & COMPANY | CLINTON | IA |
| E.I. Du Pont De Nemours | Clinton | IA |
| E.I. du Pont de Nemours & Company, Chemical | Fort Madison | IA |
| E.I. DUPONT DE NEMOURS & CO. INC. – Cellophane Plant | CLINTON | IA |
| E.I. DUPONT DE NEMOURS & COMPANY | CLINTON | IA |
| Eagle Grove Community Schools | Eagle Grove | IA |
| EAGLE IRON WORKS | DES MOINES | IA |
| EAGLES CLUB | CLINTON | IA |
| EAST HIGH SCHOOL | WATERLOO | IA |
| EAST JUNIOR HIGH SCHOOL – 11TH AND MORNINGSIDE AVE | SIOUX CITY | IA |
| EASTERN IOWA LIGHT – FAIR STATION | MONTPELIER | IA |
| Eastern Iowa Light& Power Co | Montpelier | IA |
| Eaton Corporation | Shenandoah | IA |
| ECONOMY ROOFING & INS. CO. | DAVENPORT | IA |
| Eddyville Powerhouse | Eddyville | IA |
| ELECTRIC PARK BOWLING ALLEYS | WATERLOO | IA |
| ELEMENTARY SCHOOL BLDG. | MOUNT PLEASANT | IA |
| ELKS CLUB LODGE | WATERLOO | IA |
| ELLSWORTH COMMUNITY COLLEGE- MARTIN ELLSWORTH DITTMER GYMNASIUM | ELLSWORTH | IA |
| ELWOOD GIBERSON CO | DES MOINES | IA |
| EMBASSY CLUB | CEDAR RAPIDS | IA |
| EMMANUEL LUTHERAN CHURCH | GRAFTON | IA |
| EMPLOYERS MUTUAL INSURANCE – 717 MULBERRY | DES MOINES | IA |
| EMPLOYMENT SECURITY BUILDING | DES MOINES | IA |
| EXECUTIVE COUNCIL OF IOWA | DES MOINES | IA |
| EXECUTIVE COUNCIL OF IOWA | INDEPENDENCE | IA |
| FAIRFIELD ALUMINUM CASTIN | FAIRFIELD | IA |
| FAIRFIELD ALUMINUM CASTING COMPANY | FAIRFIELD | IA |
| FAIRMONT CEMETARY | DAVENPORT | IA |
| FAIRMONT CREAMERY COMPANY | SIOUX CITY | IA |
| FAIRMONT FOODS | SIOUX CITY | IA |
| FARLEY AND LOETSCHER MANUFACTURING COMPANY | DUBUQUE | IA |
| FARM BUREAU | DES MOINES | IA |
| FARM BUREAU BLDG | DES MOINES | IA |
| FARM BUREAU BUILDING | HAMPTON | IA |
| FARM EQUIPMENT MFG CO | CENTERVILLE | IA |
| FARMERS ELEVATOR INSURANCE COMPANY | DES MOINES | IA |
| FARMERS MUTUAL REINSURANCE BLDG | GRINNELL | IA |
| FARMLAND INDUSTRIES – FERTILIZER PLANT | FORT DODGE | IA |
| FARMLAND INDUSTRIES INC | FORT DODGE | IA |
| FINLEY HOSPITAL | DUBUQUE | IA |
| Firestone | Des Moines | IA |
| Firestone Tire & Rubber Co. | Des Moines | IA |
| FIRESTONE TIRE AND RUBBER COMPANY | DES MOINES | IA |
| FIRST CONGREGATIONAL CHURCH | CLEAR LAKE | IA |
| FIRST FEDERAL SAVINGS & LOAN BLDG | COUNCIL BLUFFS | IA |
| FIRST FEDERAL SAVINGS & LOAN BUILDING | DAVENPORT | IA |
| FIRST METHODIST CHURCH | HOLSTEIN | IA |
| First Miss | Fort Madison | IA |
| FIRST NATIONAL BANK BUILDING | DAVENPORT | IA |
| FIRST PRESBYTERIAN CHURCH | ESTHERVILLE | IA |
| FIRST UNITED METHODIST CHURCH | CHARITON | IA |
| FISHER ARTIFICIAL ICE AND COLD STORAGE COMPANY | DUBUQUE | IA |
| FISHER CONTROLS – MANUFACTURING PLANT | MARSHALLTOWN | IA |
| FISHER CONTROLS COMPANY | MARSHALLTOWN | IA |
| FISHER GOVERNOR CO | MARSHALLTOWN | IA |
| Fisher Governor Co. | Marshalltown | IA |
| FISHER GOVERNOR COMPANY | MARSHALLTOWN | IA |
| FLORA DUNLAP SCHOOL | DES MOINES | IA |
| FLUOR CORP. | CLINTON | IA |
| FLUOR CORPORATION LIMITED | CLINTON | IA |
| FMC Corporation | Cedar Rapids | IA |
| FORD GARAGE BUILDING | LAURENS | IA |
| FOREST CITY MUNICIPAL LIGHT PLANT | FOREST CITY | IA |
| FOSTER WHEELER FOR CHEMPLEX CONSTRUCTION CO. | FORT MADISON | IA |
| FRANK FOUNDRIES CORPORATION | DAVENPORT | IA |
| FRANK L. SMART JUNIOR HIGH SCHOOL | DAVENPORT | IA |
| FRANKLIN APARTMENTS | DES MOINES | IA |
| FRANKLIN APARTMENTS | HAMPTON | IA |
| FRANKLIN COUNTY GENERAL HOSPITAL | HAMPTON | IA |
| FRANKLIN GENERAL HOSPITAL | HAMPTON | IA |
| French Hecht, Inc. | Davenport | IA |
| FRIENDS OF FAITH RETIREMENT HOMES, INC. – FREINDSHIP VILLAGE | WATERLOO | IA |
| FT. DODGE GAS & ELECTRIC COMPANY – ELECTRIC PLANT | FT. DODGE | IA |
| FT. DODGE, DES MOINES & SOUTHERN RAILROAD COMPANY | FRAZER | IA |
| FT. MADISON CHAIR COMPANY | FT. MADISON | IA |
| Fust Herman H & Co | Des Moines | IA |
| FUST HERMAN H AND COMPANY | DES MOINES | IA |
| GALESBURG SR. HIGH SCHOOL | DAVENPORT | IA |
| GATE CITY STEEL | DAVENPORT | IA |
| GENERAL MILLS | BELMOND | IA |
| GENERAL MILLS, INCORPORATED | KEOKUK | IA |
| GENERAL SERVICES ADMINISTRATION – ANIMAL DISEASE LAB | AMES | IA |
| GEORGE NEAL | WOODBURY | IA |
| GEORGE NEAL STATION NORTH | SERGEANT BLUFF | IA |
| GEORGE NEAL STATION NORTH – UNIT 1 | SERGEANT BLUFF | IA |
| GEORGE NEAL STATION SOUTH | SALIX | IA |
| GEORGIA PACIFIC CORPORATI | FORT DODGE | IA |
| GEORGIA PACIFIC CORPORATION | FORD DODGE | IA |
| GEORGIA PACIFIC CORPORATION | FORT DODGE | IA |
| GIANT MANUFACTURING CO | COUNCIL BLUFFS | IA |
| Gibson Homans Co. | Des Moines | IA |
| Glenwood State Hospital School | Glenwood | IA |
| GLENWOOD STATE SCHOOL | GLENWOOD | IA |
| Glick Supply Company | Marshalltown | IA |
| Globe Machine & Supply Company | Spencer | IA |
| Globe Machine & Supply Company | Cedar Rapids | IA |
| Globe Machinery & Supply | Spencer | IA |
| GLOBE MACHINERY & SUPPLY COMPANY | DES MOINES | IA |
| Glove Machinery | Spencer | IA |
| GLUCOSE SUGAR REFINNING COMPANY | DAVENPORT | IA |
| GOLF & COUNTRY CLUB | DES MOINES | IA |
| GRACELAND COLLEGE | LAMONT | IA |
| GRACELAND COLLEGE | LAMONI | IA |
| Grain Processing Company | Muscatine | IA |
| GRAIN PROCESSING CORP | MUSCATINE | IA |
| GRAIN PROCESSING CORPORATION | MUSCATINE | IA |
| GRAIN PROCESSING CORPORATION PLANT | MUSCATINE | IA |
| Grain Processing Plant | Muscatine | IA |
| GRANDVIEW BAPTIST CHURCH | DAVENPORT | IA |
| GRANDWOOD SCHOOL | BETTENDORF | IA |
| GRANT SCHOOL | DAVENPORT | IA |
| GREAT WESTERN CEREAL COMPANY | SIOUX CITY | IA |
| GREAT WESTERN CEREAL COMPANY | FT. DODGE | IA |
| GREEN PROCESSING CORPORATION | MUSCATINE | IA |
| GREEN VALLEY CHEMICAL CO | CRESTON | IA |
| GREEN VALLEY CHEMICAL COMPANY | CRESTON | IA |
| GRIFFIN PIPE | COUNCIL BLUFFS | IA |
| Griffin Pipe Products | Council Bluffs | IA |
| GRIFFIN PIPE PRODUCTS CO | COUNCIL BLUFFS | IA |
| GRISWOLD STATE BANK | GRISWOLD | IA |
| H J HEINZ CO | MASCATINE | IA |
| HAHN CONCRETE PRODUCTS – PLANT | MUSCATINE | IA |
| HANSEN BROTHERS | DES MOINES | IA |
| HAPPY CHEF | CLEAR LAKE | IA |
| HAWEYE STEEL PRODUCTION | WATERLOO | IA |
| HAWKEYE CHEMICAL CO | CLINTON | IA |
| Hawkeye Chemical Company | Clinton | IA |
| HAWKEYE CHEMICAL PLANT | CLINTON | IA |
| HAWKEYE LAUNDRY CO | BOONE | IA |
| HAWKEYE LAUNDRY COMPANY | BOONE | IA |
| HAWKEYE STEEL PRODUCTS | WATERLOO | IA |
| HAWKEYE TIRE AND RUBBER COMPANY | DES MOINES | IA |
| HEFTI’S LOCKER PLANT | LUVERNE | IA |
| Henderson Manufacturing | Manchester | IA |
| HENNESY BROTHERS COMPANY | MONTROSE | IA |
| HENRY FIELD SEED CO. | SHENANDOAH | IA |
| HERBERT HOOVER JUNIOR HIGH SCHOOL | SIOUX CITY | IA |
| HERMAN FUST COMPANY | DES MOINES | IA |
| HIGH SCHOOL-JUNIOR HIGH BUILDING | KANAWHA | IA |
| HIGHLAND PARK LUTHERAN CHURCH | DES MOINES | IA |
| HIGHWAY SURFACING CORPORATION | ADAIR | IA |
| HIGHWAY SURFACING CORPORATION | NORTH HAMPTON | IA |
| HILLS-MCCANNA | CRESTON | IA |
| HINDE AND DAUCH PAPER COMPANY | FT. MADISON | IA |
| HOME FEDERAL SAVING AND LOAN BUILDING | DES MOINES | IA |
| HOME FEDERAL SAVINGS & LOAN ASSOCIATION | DES MOINES | IA |
| HOME FEDERAL SAVINGS AND LOAN – ASSOCIATION BLDG | DES MOINES | IA |
| HOME FEDERAL SAVINGS AND LOAN ASSOCIATION – 701 PIERCE | SIOUX CITY | IA |
| HON INDUSTRIES | MUSCATINE | IA |
| HOOKER CHEMICAL CORPORATION | MONTPELIER | IA |
| HOOKER CHEMICAL CORPORATION | BUFFALO | IA |
| HOOKER CHEMICAL CORPORATION PHOSPHORUS DIVISION | DAVENPORT | IA |
| HORMEL – SLAUGHTERING AND PROCESSING PLANT – COLD STORAGE | OTTUMWA | IA |
| HORMEL FOODS CORP. – SAUSAGE PLANT | KNOXVILLE | IA |
| HORMEL PLANT | ALGONA | IA |
| HOSPITAL – OTTUMWA REGIONAL HEALTH CENTER | OTTUMWA | IA |
| HUBINGER CO. | KEOKUK | IA |
| Hubinger Co. – Building #65 | Keokuk | IA |
| Hubinger Company | Koekuk | IA |
| HUISKAMP BROTHERS COMPANY | KEOKUK | IA |
| HUTTIG MANUFACTURING | MUSCATINE | IA |
| HUTTIG MANUFACTURING COMPANY | MUSCATINE | IA |
| HY GRADE FOOD PRODUCTS | STORM LAKE | IA |
| HYGRADE FOOD PRODUCTS CORPORATION | STORM LAKE | IA |
| I.E.S. | CEDAR RAPIDS | IA |
| IDAHO ELECTRIC POWER & WATER – DUANE ARNOLD NUCLEAR POWER PLANT | PALO | IA |
| Ies Utilities | Burlington | IA |
| IES UTILITIES, INCORPORATED – SUTHERLAND STATION | MARSHALLTOWN | IA |
| IMMACULATE CONCEPTION CHURCH | SUMNER | IA |
| IMMANUEL EVANGELICAL REFORMED CHURCH | LATIMER | IA |
| INC TOWN OF SILBEY | SIBLEY | IA |
| INDIANOLA MUNICIPAL UTILITIES – DOWNTOWN POWER PLANT | INDIANOLA | IA |
| INSTITUTE FOR FEEBLE MINDED CHILDREN | GLENWOOD | IA |
| INTERNATIONAL DISTILLING COMPANY | DES MOINES | IA |
| INTERNATIONAL MILLING COMPANY | SIOUX CITY | IA |
| INTERNATIONAL MINERALS & CHEMICAL CORPORATION | MASON CITY | IA |
| INTERNATIONAL MINERALS CORPORATION | MASON CITY | IA |
| INTERSTATE PIPE & SUPPLY CO. | DUBUQUE | IA |
| INTERSTATE POWER | DUBUQUE | IA |
| INTERSTATE POWER AND LIGHT COMPANY – BURLINGTON GENERATING STATION | BURLINGTON | IA |
| INTERSTATE POWER AND LIGHT COMPANY – M.L. KAPP GENERATING STATION | CLINTON | IA |
| Interstate Power Co | Dubuque | IA |
| INTERSTATE POWER COMPANY | DUBUQUE | IA |
| INTERSTATE POWER COMPANY – M.L. KAPP STATION | CLINTON | IA |
| INTERSTATE POWERHOUSE | CLINTON | IA |
| IOWA AIR NATIONAL GUARD – BASE OPERATIONS OFFICE | DES MOINES | IA |
| IOWA AIR NATIONAL GUARD, BASE OPERATIONS OFFICE | DES MOINES | IA |
| IOWA AND ILLINOIS RAILWAY COMPANY | CLINTON | IA |
| Iowa Army Ammunition Plant | Middletown | IA |
| IOWA ASBESTOS CO. | DES MOINES | IA |
| Iowa Asbestos Company | Des Moines | IA |
| Iowa Canning Company | La Porte City | IA |
| IOWA CITY LIGHT AND POWER COMPANY – CORALVILLE GENERATING STATION | CORALVILLE | IA |
| IOWA CITY LIGHT AND POWER COMPANY – MANUFACTURED GAS PLANT | IOWA CITY | IA |
| IOWA COLLEGE-FRILEY HALL | AMES | IA |
| IOWA ELECTRIC COMPANY – POWER PLANT | MUSCATINE | IA |
| Iowa Electric Light & Power | Boone | IA |
| Iowa Electric Light & Power | Council Bluff | IA |
| Iowa Electric Light & Power | Des Moines | IA |
| IOWA ELECTRIC LIGHT & POWER – 6TH STREET STATION | CEDAR RAPIDS | IA |
| IOWA ELECTRIC LIGHT & POWER – BOONE POWER STATION | BOONE | IA |
| Iowa Electric Light & Power – Sixth Street Power Station | CEDAR RAPIDS | IA |
| Iowa Electric Light & Power – Sutherland Station | MARSHALLTOWN | IA |
| Iowa Electric Light & Power – Sutherland Station – Unit 3 | MARSHALLTOWN | IA |
| Iowa Electric Light & Power Co | Marshalltown | IA |
| Iowa Electric Light & Power Co. – Centralized Load Dispatching Headquarters | Cedar Rapids | IA |
| Iowa Electric Light & Power Company | Marshalltown | IA |
| IOWA ELECTRIC LIGHT & POWER COMPANY | SPIRIT LAKE | IA |
| IOWA ELECTRIC LIGHT & POWER COMPANY | PERRY | IA |
| Iowa Electric Light & Power Company – Duane Arnold Energy Center | PALO | IA |
| Iowa Electric Light & Power Company – Iowa Falls Station | Iowa Falls | IA |
| Iowa Electric Light & Power Company – Prairie Creek Generating Station | CEDAR RAPIDS | IA |
| Iowa Electric Light & Power Company – Sixth Street Generating Station | CEDAR RAPIDS | IA |
| IOWA ELECTRIC LIGHT AND POW | IOWA FALLS | IA |
| IOWA ELECTRIC LIGHT AND POW | PERRY | IA |
| IOWA ELECTRIC LIGHT AND POW | CEDAR RAPIDS | IA |
| IOWA ELECTRIC LIGHT AND POWER | CEDAR RAPIDS | IA |
| IOWA ELECTRIC LIGHT AND POWER – DUANE ARNOLD POWER PLANT | CEDAR RAPIDS | IA |
| IOWA ELECTRIC LIGHT AND POWER COMPANY – SPIRIT LAKE POWER PLANT | SPIRIT LAKE | IA |
| IOWA FALLS HIGH SCHOOL | IOWA FALLS | IA |
| IOWA FARMING TOOL COMPANY | FT. MADISON | IA |
| IOWA HIGHWAY COMMISSION – ADMINISTRATION WING | AMES | IA |
| IOWA ILLINOIS GAS & ELECTRIC | DAVENPORT | IA |
| IOWA ILLINOIS GAS AND ELECT | DAVENPORT | IA |
| Iowa Illinois Thermal Insulation | Davenport | IA |
| IOWA LIGHT HEAT AND POWER COMPANY – WATER PLANT | LE MARS | IA |
| IOWA LUTHERAN HOSPITAL | DES MOINES | IA |
| IOWA MALLEABLE IRON CO | FAIRFIELD | IA |
| IOWA MALLEABLE IRON COMPANY | FAIRFIELD | IA |
| IOWA MANUFACTURING COMPANY | CEDAR RAPIDS | IA |
| IOWA MANUFACTURING COMPANY | OSKALOOSA | IA |
| IOWA METHODIST HOSPITAL | DES MOINES | IA |
| IOWA MUTUAL INSURANCE | DEWITT | IA |
| IOWA ORDNANCE PLANT | BURLINGTON | IA |
| Iowa Packing Company | Des Moines | IA |
| IOWA PORTLAND CEMENT COMPANY | DES MOINES | IA |
| Iowa Power & Light – COUNCILS Bluffs Energy Center | COUNCIL BLUFFS | IA |
| Iowa Power & Light – Ottumwa Generating Station | OTTUMWA | IA |
| IOWA POWER & LIGHT CO | COUNCIL BLUFFS | IA |
| IOWA POWER & LIGHT CO. – COUNCIL BLUFFS ENERGY CENTER | COUNCIL BLUFFS | IA |
| Iowa Power & Light Co. – Council Bluffs Power Station | Council Bluffs | IA |
| Iowa Power & Light Co. – Des Moines Power Station | Des Moines | IA |
| IOWA POWER & LIGHT COMPANY – VANDALIA ROAD | DES MOINES | IA |
| IOWA POWER AND LIGHT | DES MOINES | IA |
| IOWA POWER AND LIGHT COMPANY – VANDALIA ROAD PLANT | DES MOINES | IA |
| IOWA POWER AND LIGHT COMPANY – VANDALIA ROAD PLANT – UNIT 2 | DES MOINES | IA |
| IOWA PUBLIC SERVICE | SIOUX CITY | IA |
| IOWA PUBLIC SERVICE | WATERLOO | IA |
| IOWA PUBLIC SERVICE CO | CHARLES CITY | IA |
| IOWA PUBLIC SERVICE CO – GEORGE NEAL STATION NORTH | SERGEANT BLUFF | IA |
| IOWA PUBLIC SERVICE CO – GEORGE NEAL STATION SOUTH | SALIX | IA |
| IOWA PUBLIC SERVICE CO – GEORGE NEAL STATION SOUTH – UNIT 2 | SALIX | IA |
| IOWA PUBLIC SERVICE CO – MAYNARD STATION | WATERLOO | IA |
| IOWA PUBLIC SERVICE CO – WATERLOO STATION | WATERLOO | IA |
| IOWA PUBLIC SERVICE CO. | SERGEANT BLUFF | IA |
| IOWA PUBLIC SERVICE CO. | SALIX | IA |
| Iowa Public Service Co. (Sioux City Gas & Electric Co.) – Big Sioux Station | Sioux City | IA |
| Iowa Public Service Co. (Sioux City Gas & Electric Co.) – Water Street Station | Sioux City | IA |
| IOWA PUBLIC SERVICE CO., NEAL STATION, UNIT # 3, # 4, EBASCO SERVICES, INC. | SERGEANT BLUFF | IA |
| Iowa Public Service Company | Sergaant Bluff | IA |
| IOWA PUBLIC SERVICE COMPANY | EAGLE GROVE | IA |
| IOWA PUBLIC SERVICE COMPANY | STORM LAKE | IA |
| IOWA PUBLIC SERVICE COMPANY | CHARLES CITY | IA |
| IOWA PUBLIC SERVICE COMPANY | WATERLOO | IA |
| IOWA PUBLIC SERVICE COMPANY – ORPHEUM ELECTRIC BUILDING | SIOUX CITY | IA |
| IOWA PUBLIC SERVICES – DISTRICT OFFICE BUILDING AND WAREHOUSE | HUMBOLDT | IA |
| IOWA RIVER LIGHT AND POWER COMPANY – POWER PLANT | ELDORA | IA |
| IOWA SHEET METAL CONSTRUCTION, 2601 BELL AVE. | DES MOINES | IA |
| IOWA SOLDIERS HOME | MARSHALLTOWN | IA |
| Iowa Southern – Burlington Generating Station | BURLINGTON | IA |
| IOWA SOUTHERN UTILITIES BRIDGEPORT – POWER STATION | EDDYVILLE | IA |
| IOWA SOUTHERN UTILITIES CO | CENTERVILLE | IA |
| IOWA SOUTHERN UTILITIES CO – BURLINGTON GENERATING STA RR – NBR 1 | BURLINGTON | IA |
| IOWA SOUTHERN UTILITIES CO – BURLINGTON GENERATING STATION | KEMPER | IA |
| Iowa Southern Utilities Co. – Burlington Generating Station | Burlington | IA |
| IOWA SOUTHERN UTILITIES COMPANY CENTERVILLE – POWER PLANT | CENTERVILLE | IA |
| IOWA STATE CAPITOL | DES MOINES | IA |
| Iowa State College | Ames | IA |
| IOWA STATE COLLEGE – HEATING PLANT | AMES | IA |
| IOWA STATE COLLEGE – PHYSICAL PLANT DEPT. | AMES | IA |
| Iowa State College, Electrical Engineering Building | Ames | IA |
| IOWA STATE HIGHWAY COMMIS | AMES | IA |
| IOWA STATE HIGHWAY COMMISION | AMES | IA |
| IOWA STATE HIGHWAY COMMISSION | AMES | IA |
| IOWA STATE HIGHWAY COMMISSION HEADQUARTERS | AMES | IA |
| IOWA STATE HOSPITAL | CLARINDA | IA |
| IOWA STATE HOSPITAL | INDEPENDENCE | IA |
| IOWA STATE PENITENTIARY | FORT MADISON | IA |
| IOWA STATE UNIVERSITY – GENERATOR #5 | AMES | IA |
| IOWA STATE UNIVERSITY – MARRIED HOUSING | AMES | IA |
| Iowa Steel & Iron Works | Cedar Rapids | IA |
| IOWA VALLEY SUGAR COMPANY, INCORPORATED | BELMOND | IA |
| IOWA VETERANS HOME | MARSHALLTOWN | IA |
| Iowa, Illinois Gas & Electric Company | South Muscatine | IA |
| IOWA-ILLINOIS GAS & ELECTRIC CO – Riverside Station | BETTENDORF | IA |
| IOWA-ILLINOIS GAS & ELECTRIC COMPANY | FT DODGE | IA |
| IOWA-ILLINOIS GAS & ELECTRIC COMPANY – 12TH AVENUE POWER PLANT | FT. DODGE | IA |
| IOWA-ILLINOIS GAS AND ELECTRIC COMPANY – MANUFACTURED GAS PLANT | IOWA CITY | IA |
| IOWA-NEBRASKA LIGHT & POWER COMPANY (United Light & Power) | MISSOURI VALLEY | IA |
| IRON PUBLIC SERVICE – PORT NEAL STATION – UNIT #2 | SALIX | IA |
| J. A. NEYMEYER CO. | WATERLOO | IA |
| J. DEERE TRACTOR | DUBUQUE | IA |
| J. I. Case Company | Bettendorf | IA |
| J. Morrell & Co. | Ottumwa | IA |
| J.C. HUBINGER BROTHERS COMPANY | KEOKUK | IA |
| J.E. Decker & Sons | Mason City | IA |
| J.F. PRITCHARD & COMPANY | CRESTON | IA |
| J.H. HERTSCHE | HAMBURG | IA |
| J.I. CASE COMPANY | BETTENDORF | IA |
| J.T. CASE COMPANY | BETTENDORF | IA |
| J.W. DAVIS COMPANY | BETTENDORF | IA |
| JACOB E. DECKER & SONS | MASON CITY | IA |
| JAEGER MFG CO | DES MOINES | IA |
| JAS. STEWART AND COMPANY | OTTUMWA | IA |
| JC BUILDING CO | DES MOINES | IA |
| JC PENNEY STORE – 500 WALNUT STREET | DES MOINES | IA |
| JC PENNEY STORE – 607 FOURTH ST. | SIOUX CITY | IA |
| JEFFERSON COUNTY HEALTH CENTER | FAIRFIELD | IA |
| JEFFERSON ELECTRIC COMPANY – POWER PLANT | JEFFERSON | IA |
| JEFFERSON SCHOOL | FT MADISON | IA |
| JELD WEN INCORPORATED | DUBUQUE | IA |
| Jennie Edmundson Hospital | Council Bluff | IA |
| JENNIE EDMUNDSON HOSPITAL | COUNCIL BLUFFS | IA |
| John Deere – Dubuque Works – Power Plant | DUBUQUE | IA |
| JOHN DEERE – THE SUPERVISORS’ CLUB | WATERLOO | IA |
| John Deere Company | Waterloo | IA |
| JOHN DEERE COMPANY | DUBUQUE | IA |
| JOHN DEERE COMPANY | DES MOINES | IA |
| JOHN DEERE DES MOINES | ANKENY | IA |
| JOHN DEERE DES MOINES | DES MOINES | IA |
| JOHN DEERE DUBUQUE TRACTOR | DUBUQUE | IA |
| John Deere Dubuque Works | Dubuque | IA |
| JOHN DEERE TRACTOR | WATERLOO | IA |
| John Deere Tractor Works | Waterloo | IA |
| JOHN DEERE WATERLOO WKS | WATERLOO | IA |
| JOHN DEERE WORKS | ANKENZ | IA |
| JOHN DEERE WORKS | DES MOINES | IA |
| JOHN DEERE WORKS | DUBUQUE | IA |
| JOHN MORRELL & CO | OTTUMWA | IA |
| JOHN MORRELL & CO. | OTTUMWA | IA |
| John Morrell & Company | Ottumwa | IA |
| JOHN MORRELL AND COMPANY | OTTUMWA | IA |
| JOHN NEFF CEDAR FALLS PAPER COMPANY | CEDAR FALLS | IA |
| JOHNS MANVILLE PLANT | WILTON | IA |
| JOHNSON GAS APPLIANCE COM | CEDAR RAPIDS | IA |
| Johnson Gas Appliance Company | Cedar Rapids | IA |
| JOHNSON GAS MANUFACTURING CO | CEDAR RAPIDS | IA |
| JOHNSON MACHINE WORKS, INCORPORATED | CHARITON | IA |
| JOHNSON SCHOOL | DAVENPORT | IA |
| JOHNSTON TOMBIGBEE FURNITURE MANUFACTURING | CHARITON | IA |
| JONES AS TERMINAL STS | DUBUQUE | IA |
| JOSEPH MORRELL AND COMPANY, LIMITED | OTTUMWA | IA |
| Jp Austin Associated Inc | Davenport | IA |
| JUNIOR HIGH SCHOOL | RED OAK | IA |
| KAHL BUILDING | DAVENPORT | IA |
| KALO BRICK & TILE CO | KALO | IA |
| KENWOOD METHODIST CHURCH | CEDAR RAPIDS | IA |
| KEOKUK COUNTY HEATING PLA | SIGOURNEY | IA |
| KEOKUK RAILWAY AND POWER COMPANY | KEOKUK | IA |
| KEOKUK STEEL CASTINGS CO | KEOKUK | IA |
| KILLIAN’S DEPARTMENT STORE-TEA ROOM | CEDAR RAPIDS | IA |
| KINGS CONCRETE COMPANY | CEDAR RAPIDS | IA |
| KINGS CROWN PLASTER CO | CEDAR RAPIDS | IA |
| KIOWA CORP | MARSHALLTOWN | IA |
| KIOWA CORPORATION | MARSHALLTOWN | IA |
| KIRKWOOD MOTEL | DES MOINES | IA |
| KOHRS COLD STORAGE COMPANY | DAVENPORT | IA |
| KRAMER PRODUCE | MASON CITY | IA |
| KROMER PRODUCE COMPANY | WATERLOO | IA |
| L & L INSULATION COMPANY | DES MOINES | IA |
| L.C. HARBERGER | KEOKUK | IA |
| L.H. KURTZ COMPANY | DES MOINES | IA |
| Lake Shore Tire & Rubber Company | Des Moines | IA |
| LAKE SHORE TIRE AND RUBBER COMPANY | DES MOINES | IA |
| LAND O LAKES COOPERATIVE | SHELDON | IA |
| Lansing Power Plant – Interstate Power Co. | Lansing | IA |
| LANSING POWER STATION | LANSING | IA |
| LATINER P M MFG CO | CEDAR RAPIDS | IA |
| LATTINER P M MFG CO | CEDAR RAPIDS | IA |
| LATTNER P M MFG CO | CEDAR RAPIDS | IA |
| LE CLAIRE MANUFACTURING COMPANY | LE CLAIRE | IA |
| LE CLAIRE MFG CO | LE CLAIRE | IA |
| LE MARS WATER AND LIGHT COMPANY – LIGHT AND WATER PLANT | LE MARS | IA |
| LECLAIRE MANUFACTURING | LECLAIRE | IA |
| LEGION HALL | OTTUMWA | IA |
| LEGION HALL | WEST BRANCH | IA |
| LEHIGH CEMENT | MASON CITY | IA |
| LEHIGH PORTLAND CEMENT | MASON CITY | IA |
| Lehigh Portland Cement Company | Mason City | IA |
| LEHY BRIDGE & TILE | FORT DODGE | IA |
| LEOPOLD DESK COMPANY | BURLIGTON | IA |
| Linde Air Products Co. (Union Carbide & Carbon Corp.) | Davenport | IA |
| Linde Air Products Co. (Union Carbide & Carbon Corp.) | Des Moines | IA |
| Link-Belt | Cedar Rapids | IA |
| LINWOOD STONE | LINWOOD | IA |
| LINWOOD STONE PROD COMPANY | LINWOOD | IA |
| Lippert Bros. | Marshalltown | IA |
| LITTLE RALPH | DAVENPORT | IA |
| LONGVIEW FIBRE COMPANY | CEDAR RAPIDS | IA |
| Louisa Des Moines Drainage District | Oakville | IA |
| LOW RENT HOUSING – 10TH AND CROCKER | DES MOINES | IA |
| LUSK CANDY CO | DAVENPORT | IA |
| Lutheran Hospital | Des Moines | IA |
| LYONS & CARNAHAN – WAREHOUSE DISTRIBUTION CENTER | MUSCATINE | IA |
| M. W. Kellogg Co. | Fort Dodge | IA |
| M.L. KAPP GENERATING STATION | CLINTON | IA |
| MACHINE PRODUCTS COMPANY | CORYDON | IA |
| MAIZWOOD PRODUCTS COMPANY | DUBUQUE | IA |
| MALEK THEATRE | INDEPENDENCE | IA |
| MANLY HIGH SCHOOL – ABBOTT ROAD | MANLY | IA |
| MANSON HIGH SCHOOL | MANSON | IA |
| MAQUOKETA LIGHT AND POWER COMPANY | MAQUOKETA | IA |
| MARIAN HEALTH CENTER | SIOUX CITY | IA |
| Marietta Cement Midwest Division | Linwood | IA |
| MARION HIGH SCHOOL | MARION | IA |
| MARQUART CONCRETE BLOCK C | WATERLOO | IA |
| MARQUART CONCRETE BLOCK CO | WATERLOO | IA |
| MARQUART CONCRETE BLOCK CO. – MANUFACTURING PLANT | WATERLOO | IA |
| MARQUETTE CEMENT COMPANY | DES MOINES | IA |
| MARQUETTE CEMENT MANUFACTURING COMPANY | DES MOINES | IA |
| Marquette Cement Mfg. Co. | Des Moines | IA |
| Marshall Canning Company | Hampton | IA |
| Marshall Canning Company | Roland | IA |
| Marshall Canning Company | Waverly | IA |
| MARSHALL CANNING COMPANY | MARSHALLTOWN | IA |
| MARSHALL SUGAR REFG COMPANY | MARSHALLTOWN | IA |
| MARSHALL SUGAR REFINING COMPANY | MARSHALLTOWN | IA |
| MARSHALL SWIFT & CO | MASON CITY | IA |
| MARSHALLTOWN COMMUNITY COLLEGE – GYMNASIUM | MARSHALLTOWN | IA |
| MARSHALLTOWN TROWEL CO | MARSHALL TOWN | IA |
| MARSHALLTOWN TROWEL COMPA | MARSHALLTOWN | IA |
| MARTIN MARIETTA CEMENT CO. – CEMENT PLANT | DAVENPORT | IA |
| Martin Marietta Cement Company | Davenport | IA |
| MASON CITY BRICK & TILE | MASON CITY | IA |
| MASON CITY CLEAR LAKE RAILWAY COMPANY | MASON CITY | IA |
| MASON CITY CLEAR LAKE RAILWAY COMPANY | EMERY | IA |
| MAYNARD | MAYNARD | IA |
| Maytag | Newton | IA |
| Maytag | Des Moines | IA |
| MAYTAG COMPANY | NEWTON | IA |
| MAYTAG CORPORATION | NEWTON | IA |
| MAYTAG MFG CO | NEWTON | IA |
| MC DONALD MFG CO A Y | DUBUQUE | IA |
| MC GUINESS C H & CO | DES MOINES | IA |
| MCCARTHY IMPROVEMENT | DAVENPORT | IA |
| McFarland Clinic | Ames | IA |
| MCGUINESS C H & CO | DAVENPORT | IA |
| MCKINLEY SCHOOL | DAVENPORT | IA |
| MECHANICAL DEPARTMENT | MASON CITY | IA |
| MECHANICAL DEPARTMENT – P.O. MC-37314 | MASON CITY | IA |
| MEDICAL RESEARCH HOSPITAL | IOWA CITY | IA |
| MEEKS BROTHERS | BONAPARTE | IA |
| MENTAL HEALTH INSTITUTE | CHEROKEE | IA |
| MENTAL HEALTH INSTITUTE | MOUNT PLEASANT | IA |
| MENTAL HEALTH INSTITUTE | INDEPENDENCE | IA |
| MENTAL HEALTH INSTITUTE | MT. PLEASANT | IA |
| MERCHANTS NATIONAL BANK | CEDAR RAPIDS | IA |
| MERCHANTS NATIONAL BANK OF CEDAR RAPIDS | CEDAR RAPIDS | IA |
| Mercy Hospital | Iowa City | IA |
| Mercy Hospital | Des Moines | IA |
| MERCY HOSPITAL | CEDAR RAPIDS | IA |
| MERCY HOSPITAL | DAVENPORT | IA |
| MEREDITH – PUBLISHING PLANT | DES MOINES | IA |
| MEREDITH PRINTING, INCORPORATED | DES MOINES | IA |
| MEREDITH PUBLISHING CO. | DES MOINES | IA |
| METHODIST CHURCH | CLARION | IA |
| METHODIST CHURCH | HAMPTON | IA |
| MID AMERICA DAIRYMEN INC | DES MOINES | IA |
| MIDAMERICAN ENERGY COMPANY | COUNCIL BLUFFS | IA |
| MIDAMERICAN ENERGY COMPANY | DES MOINES | IA |
| MIDAMERICAN ENERGY COMPANY | MUSCATINE | IA |
| MIDAMERICAN ENERGY COMPANY | SIOUX CITY | IA |
| MIDLAND INDUSTRIES INC | CEDAR RAPIDS | IA |
| MIDLAND PACKING COMPANY | SIOUX CITY | IA |
| MIDWEST CARBIDE CORP | KEOKUK | IA |
| MIDWEST POWER | COUNCIL BLUFFS | IA |
| MIDWEST POWER | SIOUX CITY | IA |
| Midwestern Pipe Contractors | Belle Vue | IA |
| MILES CONSOLIDATED SCHOOL | MILES | IA |
| MILTON KAPP GENERATING STATION – UNIT 2 | CLINTON | IA |
| MINI MITE INC | LE CLAIRE | IA |
| MISSISSIPPI RIVER POWER COMPANY | KEOKUK | IA |
| MO WEST STS PORTLAND CEM | MASON CITY | IA |
| Monsanto | Davenport | IA |
| Monsanto Chemcial Company | Muscatine | IA |
| MONSANTO CHEMICAL CO | MUSCATINE | IA |
| MONSANTO CHEMICAL CO | MOSCATINE | IA |
| MONSANTO CHEMICAL CO. | MUSCATINE | IA |
| MONSANTO CHEMICAL COMPANY | MUSCATINE | IA |
| MONSANTO CO. | MUSCATINE | IA |
| MONSANTO COMPANY | MUSCATINE | IA |
| MOORE ENGINEERING INC | WATERLOO | IA |
| MORGAN COLONIAL HEATING AND | DES MOINES | IA |
| MORNINGSIDE COLLEGE – EPPLEY FINE ARTS BUILDING | SIOUX CITY | IA |
| MORNINGSIDE/EAST HIGH SCHOOL – MAYHEW AND CYPRUS ST. | SIOUX CITY | IA |
| MT ARBOR NURSERIES | SHENANDOAH | IA |
| MUNICIPAL LIGHT & POWER CO | CEDAR FALLS | IA |
| Municipal Light & Water Plant | Atlantic | IA |
| MUNICIPAL POWER AND LIGHT | PELLA | IA |
| Municipal Power Plant | Atlantic | IA |
| MUNICIPAL POWER PLANT | HARTLEY | IA |
| MUNICIPAL POWER PLANT | PELLA | IA |
| MUNICIPAL POWER PLANT | SPENCER | IA |
| MURRAY IRON WORKS | BURLINGTON | IA |
| Muscataine Municipal Elec Plant | Muscataine | IA |
| MUSCATINE COMMUNITY YMCA | MUSCATINE | IA |
| MUSCATINE LIGHTING COMPANY – POWER PLANT | MUSCATINE | IA |
| Muscatine Municiple Electric Plant | Muscatine | IA |
| Muscatine Power & Water – Muscatine Generating Station | MUSCATINE | IA |
| Muscatine Power & Water – Muscatine Generating Station Unit 9 | MUSCATINE | IA |
| MUSCATINE POWER & WATER – UNIT #9 | MUSCATINE | IA |
| MUSCATINE POWER AND LIGHT | MUSCATINE | IA |
| MYSTIC MILLING COMPANY | SIOUX CITY | IA |
| NATIONAL ANIMAL DISEASE | AMES | IA |
| NATIONAL ANIMAL DISEASE | AMOS | IA |
| NATIONAL BY PRODUCTS INC | DES MOINES | IA |
| National By Products Inc. | Clinton | IA |
| NATIONAL CARBON CO. | RED OAK | IA |
| NATIONAL CARBON COMPANY | RED OAK | IA |
| National Gypsum | Fort Dodge | IA |
| NATIONAL MOTOR INN | DES MOINES | IA |
| NATIONAL STARCH COMPANY | DES MOINES | IA |
| NATIONAL TRAVELERS LIFE INSURANCE BUILDING | DES MOINES | IA |
| NATURAL GAS PIPELINE CO. OF AMERICA – STATION 108 | TRURO | IA |
| NATURAL GAS PIPELINE COMPANY OF AMERICA – STATION 107 | EMERSON | IA |
| NATURAL GAS PIPELINE COMPANY OF AMERICA – STATION 109 | HARPER | IA |
| NEAL SMITH FEDERAL OFFICE BUILDING | DES MOINES | IA |
| NEW HIGH SCHOOL | MAQUOKETA | IA |
| NEWTON AND NORTHWESTERN RAILROAD | FRASER | IA |
| NICHOLS ALUMINUM & WIRE | DAVENPORT | IA |
| NICHOLS ALUMINUM COMPANY | DAVENPORT | IA |
| NICHOLS HOMESHIELD INC | DAVENPORT | IA |
| NICHOLS WIRE | DAVENPORT | IA |
| NICHOLS WIRE & ALUM CO | DAVENPORT | IA |
| NICHOLS WIRE & ALUM INC | DAVENPORT | IA |
| NICHOLS WIRE & ALUMINUM CO | DAVENPORT | IA |
| NICHOLS WIRE AND ALUMINUM C | DAVENPORT | IA |
| NICHOLS-HOMESHIELD INC | DAVENPORT | IA |
| NO WEST STS PORTLAND CEM | MASON CITY | IA |
| NO WEST STS PORTLAND CEMENT | MASON CITY | IA |
| NORDYKE AND MARMON COMPANY | INDIANAPOLIS | IA |
| NORTH AMERICAN MFG CO | SIOUX CITY | IA |
| NORTH HIGH SCHOOL | SIOUX CITY | IA |
| NORTH STATES PORT CEMENT | MASON CITY | IA |
| Northern Indiana Gas & Electric | Sioux City | IA |
| NORTHERN NATURAL GAS | VENTURA | IA |
| Northern Natural Gas Co. | Mason City | IA |
| NORTHERN SUGAR CORPORATION | MASON CITY | IA |
| NORTHWEST BELL TELEPHONE BUILDING | DAVENPORT | IA |
| NORTHWEST NATIONAL BANK – FIFTH & JACKSON | SIOUX CITY | IA |
| NORTHWESTERN BELL TELEPHONE BUILDING – PLEASANT STREET | DES MOINES | IA |
| NORTHWESTERN BELL TELEPHONE CO. | DES MOINES | IA |
| NORTHWESTERN PORTLAND CEMENT | MASON CITY | IA |
| Northwestern States Portland | Mason City | IA |
| Northwestern States Portland Cement | Mason City | IA |
| OAKDALE HOSPITAL | OAKDALE | IA |
| OAKES THOMAS CO | CLINTON | IA |
| OAKLEY RAY | WATERLOO | IA |
| OCCIDENTAL CHEMICAL | BUFFALO | IA |
| OLIVER CORP | CHARLES CITY | IA |
| OLIVER CORPORATION | CHARLES CITY | IA |
| Oliver Farm Equipment Company | Charles City | IA |
| O’MAC C/O WOOLCO STORE | CEDAR FALLS | IA |
| OMAHA STANDARD | COUNCIL BLUFF | IA |
| ORIGINAL ENDERES CO | GUTTENBURG | IA |
| ORIGINAL ENDERES CO | GUIDENBURG | IA |
| ORIGINAL ENDERES CO | GUTTENBERG | IA |
| ORIGINAL ENDERES TOOL CO | GUTTENBURG | IA |
| OSCAR MAYER & CO | DAVENPORT | IA |
| OSCAR MAYER & CO – POWER PLANT | DAVENPORT | IA |
| OSCAR MAYER & CO (a/k/a Tyson Foods, Inc.) | PERRY | IA |
| OSCAR MAYER & CO. | DAVENPORT | IA |
| OSCAR MAYER AND CO | DAVENPORT | IA |
| OSCAR MAYER AND COMPANY, INCORPORATED | DAVENPORT | IA |
| OSCAR MAYER PACKING COMPANY | DAVENPORT | IA |
| OSCAR MEYER AND COMPANY | DAVENPORT | IA |
| OSCAR MEYER FOODS COMPANY | DAVENPORT | IA |
| OSMUNDSON MFG CO | PERRY | IA |
| OSTEOPATHIC MEDICAL SCHOOL | DES MOINES | IA |
| OTTUMWA BOX CAR LOADER COMPANY | OTTUMWA | IA |
| OTTUMWA BRICK & TILE CO | OTTUMWA | IA |
| OTTUMWA ELECT AND STM COMPANY | OTTUMWA | IA |
| OTTUMWA ELECTRIC RAILWAY – POWER PLANT | OTTUMWA | IA |
| OTTUMWA RAILWAY AND LIGHT COMPANY – POWER PLANT | OTTUMWA | IA |
| OTTUMWA TRACTION AND LIGHT COMPANY – POWER PLANT | OTTUMWA | IA |
| P. M. LATTNER MANUFACTURING COMPANY | CEDAR RAPIDS | IA |
| Packaging Corp. of America | Tama | IA |
| PARK AVENUE SCHOOL | DES MOINES | IA |
| PATRICK HARDWARE | APELLE | IA |
| PAUL HOSHEK | BURLINGTON | IA |
| Paul J Krez Company | Mason City | IA |
| PAXTON & VIERLING STEEL | CARTER LAKE | IA |
| PAXTON & VISHLING STEEL | CARTER LAKE | IA |
| PAXTON AND VERLING STEEL | CARTER LAKE | IA |
| PENICH & FORD LIMITED | CEDAR RAPIDS | IA |
| Penick & Ford | Cedar Rapids | IA |
| Penick & Ford Limited, Inc. | Cedar Rapis | IA |
| PENICK & FORD, LTD. | CEDAR RAPIDS | IA |
| PENICK AND FORD LTD INC | CEDAR RAPIDS | IA |
| PENICK AND FORD, LIMITED | CEDAR RAPIDS | IA |
| PENN DIXIE CEMENT | W DES MOINES | IA |
| PENN DIXIE CEMENT CORP | W DES MOINES | IA |
| PENN DIXIE CEMENT CORP | WEST DES MOINES | IA |
| PENN DIXIE CEMENT PLANT | W. DES MOINES | IA |
| Peoples Gas & Electric | Mason City | IA |
| PEOPLES GAS AND ELECTRIC COMPANY – ELECTRIC LIGHT PLANT | BURLINGTON | IA |
| PEOPLES GAS AND ELECTRIC COMPANY – MASON CITY COAL GASIFICATION PLANT | MASON CITY | IA |
| PEOPLES LIGHT COMPANY – ELECTRIC LIGHT PLANT | DAVENPORT | IA |
| PEPSI-COLA BOTTLERS | CARROLL | IA |
| PERKINS ELEMENTARY SCHOOL | DES MOINES | IA |
| PERRY PACKING COMPANY | PERRY | IA |
| PETER PAN BAKERS INC | CEDAR RAPIDS | IA |
| PHILLIPS CHEMICAL | FORT MADISON | IA |
| PINE INN | CEDAR RAPIDS | IA |
| PIRELLI ARMSTRONG TIRE CORPORATION, 2345 E MARKET ST, 50306 | DES MOINES | IA |
| PITTS DES MOINES STEEL CO | DES MOINES | IA |
| PLEASANT VIEW ELEMENTARY SCHOOL | BETTENDORF | IA |
| PLUMB SUPPLY CO. | MASON CITY | IA |
| Plumbers Supply Company | Iowa City | IA |
| POLK COUNTY FEDERAL SAVING AND LOAN ASSOCIATION OF DES MOINES | DES MOINES | IA |
| PORT NEAL POWER PLANT | SIOUX CITY | IA |
| Potlatch Corp. | Lewiston | IA |
| POTTAWATTAMIE COUNTY COURTHOUSE | COUNCIL BLUFFS | IA |
| POWER PLANT | COUNCIL BLUFFS | IA |
| POWER PLANT NBR 2 UNIT 7 | AMES | IA |
| POWER STATION #2 | DES MOINES | IA |
| POWERHOUSE | FT. DODGE | IA |
| POWERHOUSE | LANSING | IA |
| POWERHOUSE | MONTPELIER | IA |
| POWERHOUSE | SIOUX CITY | IA |
| POWERHOUSE | DUBUQUE | IA |
| PRAIRIE PIPE LINE COMPANY | FT. MADISON | IA |
| PROCTER AND GAMBLE – PLANT | IOWA CITY | IA |
| PROCTER AND GAMBLE COMPANY | IOWA CITY | IA |
| PROCTOR & GAMBLE | IOWA CITY | IA |
| PROCTOR & GAMBLE – MAINTENANCE BUILDING | IOWA CITY | IA |
| PROCTOR & GAMBLE CO | IOWA CITY | IA |
| PROCTOR & GAMBLE MANUFACTURING COMPANY | IOWA CITY | IA |
| PROCTOR & GAMBLE MANUFACTURING COMPANY, MAINTENANCE BUILDING | IOWA CITY | IA |
| PROCTOR & GAMBLE PLANT | IOWA CITY | IA |
| PUTNAM ASBESTOS COMPANY | CEDAR RAPIDS | IA |
| PUTNAM BUILDING | DAVENPORT | IA |
| Quaker Oats | Cedar Rapids | IA |
| Quaker Oats Company | Cedar Rapids | IA |
| QUINN WIRE & IRON CO | BOONE | IA |
| R W RICE | SIOUX CITY | IA |
| R W RICE | SOUIX CITY | IA |
| R. M. DALY & CO. | DES MOINES | IA |
| R.R. DONNELLY AND SONS COMPANY | DES MOINES | IA |
| RALSTON PURINA CO | DAVENPORT | IA |
| RALSTON PURINA CO | Iowa Falls | IA |
| RALSTON PURINA COMPANY | IOWA FALLS | IA |
| RATH PACKING | WATERLOO | IA |
| RATH PACKING CO | COLUMBUS JUNCTION | IA |
| RATH PACKING CO | WATERLOO | IA |
| Rath Packing Co. | Waterloo | IA |
| RATH PACKING COMPANY | COLUMBUS JCT | IA |
| RATH PACKING PLANT | WATERLOO | IA |
| REA OFFICE BUILDING | GLIDDEN | IA |
| READ OAK SENIOR HIGH SCHOOL | RED OAK | IA |
| RED JACKET M F G COMPANY | DAVENPORT | IA |
| RED OAK WATER WORKS | RED OAK | IA |
| REDFIELD BRICK & TILE | REDFIELD | IA |
| REDFIELD-ADEL BRICK AND TILE | REDFIELD | IA |
| REGISTER & TRIBUNE BUILDING | DES MOINES | IA |
| Riverside Generating Plant | Bettendorf | IA |
| RIVERSIDE POWER STATION | IOWANA | IA |
| ROACH AND MUSSER COMPANY | MUSCATINE | IA |
| ROBERT HALL CLOTHING | DES MOINES | IA |
| ROBERTS AND OAKE, INCORPORATED | MARSHALLTOWN | IA |
| ROCKFORD BRICK & TILE CO | ROCKFORD | IA |
| ROCKWELL COLLINS | CEDAR RAPIDS | IA |
| ROCKWELL STD CORP | FAIRFIELD | IA |
| ROOSEVELT HIGH SCHOOL ADDITION | DES MOINES | IA |
| ROTH PACKING CO. | GLENWOOD | IA |
| RUBBER INDUSTRIES, DIVISION OF DRYDEN RUBBER COMPANY | KEOKUK | IA |
| RUTH PACKING COMPANY | COLUMNS JUNCTION | IA |
| S W MANUFACTURING CO | BETTENDORF | IA |
| SAGE FACILITIES | SERGEANT BLUFF | IA |
| SALSBURYS LABORATORY | CHARLES CITY | IA |
| SALSBURYS LABORATORY – POWER HOUSE ADDITION | CHARLES CITY | IA |
| SALVATION ARMY | DAVENPORT | IA |
| SALVATION ARMY HOME | DAVENPORT | IA |
| SCHAAL FURNACE CO | DES MOINES | IA |
| SCHICK GENERAL HOSPITAL | CLINTON | IA |
| Sears, Roebuck & Company, 2060 LaPorte Road | Waterloo | IA |
| SERGEANT BLUFF-LUTON HIGH SCHOOL | SERGEANT BLUFF | IA |
| SHAEFFER W A PEN CO | FT MADISON | IA |
| SHELDON DEHYDRATING CO | SHELDON | IA |
| SHELLER MFG CO | KEOKUK | IA |
| SHRIVER VAN HORN COMPANY | JEFFERSON | IA |
| SIGLIN PLUMBING AND HEATING | PERRY | IA |
| SILAS MASON CO – IAAP | BURLINGTON | IA |
| SILAS MASON CO – IOWA ORDINANCE PLANT | BURLINGTON | IA |
| SINCLAIR ARCO CHEMICAL CO | FT MADISON | IA |
| SINCLAIR OIL CORP | DES MOINES | IA |
| SINCLAIR PETROCHEMICALS – CHEMICAL FERTILIZER PLANT | FORT MADISON | IA |
| SINCLAIR PETROCHEMICALS I | FORT MADISON | IA |
| SINCLAIR REFINING | DES MOINES | IA |
| SINCLAIR REFINING CO. | DUBUQUE | IA |
| Sioux City Brick & Tile Co | Sioux City | IA |
| SIOUX CITY ENG | SIOUX CITY | IA |
| SIOUX CITY ENG WORKS | SIOUX CITY | IA |
| Sioux City Gas & Electric | Sioux City | IA |
| SIOUX CITY MUNICIPAL AUDITORIUM | SIOUX CITY | IA |
| SIOUX CITY OAT MEAL COMPANY | SIOUX CITY | IA |
| SIOUX CITY SERVICE COMPANY | SIOUX CITY | IA |
| SIOUX CITY TRACTION COMPANY | SIOUX CITY | IA |
| SIOUX CITY TRACTOR COMPANY | SIOUX CITY | IA |
| SIOUX CITY WEST HIGH SCHOOL | SIOUX CITY | IA |
| Sister of Humility | Ottumwa | IA |
| SISTERS OF ST. FRANCIS | DUBUQUE | IA |
| SISTERS OF ST. FRANCIS OF DUBUQUE | DUBUQUE | IA |
| SISTERS OF ST. FRANCIS XAVIER HOSPITAL | DUBUQUE | IA |
| Sivyer Steel Casting Co | Bettendorf | IA |
| SIVYER STEEL CASTINGS | BETTENDORF | IA |
| Sivyer Steel Corporation | Bettendorf | IA |
| SMART JUNIOR HIGH SCHOOL | DAVENPORT | IA |
| SOUTH COAST CORP RACELAND | RACELAND | IA |
| SOUTHEAST IOWA REGIONAL AIRPORT | BURLINGTON | IA |
| SOWEST FEDERATED POWER | CRESTON | IA |
| SPENCER VENEER PRODUCTS | SPENCER | IA |
| Square D | Cedar Rapids | IA |
| ST AMBROSE COLLEGE | DAVENPORT | IA |
| ST CECELIAS CATHOLIC CHURCH | AMES | IA |
| ST JOSEPH MERCY HOSPITAL | MASON CITY | IA |
| ST LOUIS DIECASTING CORP | KEOKUK | IA |
| ST. ANTHONY REGIONAL HOSPITAL & NURSING HOME | CARROLL | IA |
| ST. FRANCIS HOSPITAL | WATERLOO | IA |
| ST. JOHN LUTHERAN CHURCH – GALVA | GALVA | IA |
| ST. JOSEPH’S CATHOLIC CHURCH | GREELEY | IA |
| ST. JOSEPH’S MERCY HOSPITAL | MASON CITY | IA |
| ST. LUKE’S HOSPITAL – CENTRAL BUILDING | SIOUX CITY | IA |
| ST. LUKE’S METHODIST HOSPITAL | CEDAR RAPIDS | IA |
| ST. MICHAEL’S PARISH | WHITTEMORE | IA |
| ST. PAUL MISSOURI SYNOD LUTHERAN CHURCH | LATIMER | IA |
| ST. STEPHEN THE WITNESS CATHOLIC STUDENT CENTER | CEDAR FALLS | IA |
| Standard Oil Company of Indiana | Council Bluff | IA |
| STANDARD OIL CREDIT CARD CENTER | WEST DES MOINES | IA |
| STAR GALVANIZING CO | CEDAR RAPIDS | IA |
| STATE COLLEGE OF IOWA – GILCHRIST HALL | CEDAR FALLS | IA |
| STATE COLONY FOR EPILEPTICS | WOODWARD | IA |
| STATE COLONY OF EPILEPTICS | WOODWARD | IA |
| STATE OF IOWA CAPITAL COMMISSION | DES MOINES | IA |
| STATE SANATORIUM | OAKDALE | IA |
| STATE SANITARIUM | OAKDALE | IA |
| STATE UNIVERSITY OF IOWA – PHYSICAL PLANT STORES | IOWA CITY | IA |
| STERZING R J | BURLINGTON | IA |
| STOCKYARDS SERVICE AND SUPPLY COMPANY | SIOUX CITY | IA |
| STORM LAKE HIGH SCHOOL | DES MOINES | IA |
| STORM LAKE HIGH SCHOOL | STORM LAKE | IA |
| SUDLOW JR. HIGH SCHOOL | DAVENPORT | IA |
| SUNNYSIDE COUNTRY CLUB | WATERLOO | IA |
| SURF BALLROOM | CLEAR LAKE | IA |
| SUTHERLAND STATION | MARSHALLTOWN | IA |
| SWIFT & CO. | MASON CITY | IA |
| SWIFT & CO. | DES MOINES | IA |
| SWIFT & CO. | SIOUX CITY | IA |
| SWIFT & COMPANY | CLINTON | IA |
| SWIFT & COMPANY – AGRICHEM DIVISION | MASON CITY | IA |
| SWIFT & COMPANY – STORE DEPARTMENT C | SIOUX CITY | IA |
| SWIFT & COMPANY SOYBEAN MILL | DES MOINES | IA |
| SWIFT AND COMPANY | SIOUX CITY | IA |
| SWIFT CO | MARSHALLTOWN | IA |
| SWIFT EDIBLE OIL COMPANY | DES MOINES | IA |
| SWIFT INDEPENDENT PACKING | DES MOINES | IA |
| Swift Meat Packing Company | Sioux City | IA |
| T.M. SINCLAIR AND COMPANY | CEDAR RAPIDS | IA |
| TAILOR & COMPANY INC | SETTENDORF | IA |
| TAYLOR INSULATION CO. | CEDAR RAPIDS | IA |
| TAYLOR SCHOOL | DAVENPORT | IA |
| TERRA CHEMICAL | SERGEANT BLUFF | IA |
| Terra Chemical Corporation | Sargent Bluff | IA |
| TERRA CHEMICAL INCORPORATED | SIOUX CITY | IA |
| TERRA CHEMICAL INTER. | SIOUX CITY | IA |
| TERRA CHEMICAL INTERNATIO | SERGEANT BLUFF | IA |
| THATCHER PLASTIC PACKAGIN | MASCATINE | IA |
| THE EVANGELICAL FREE CHURCH OF BRITT | BRITT | IA |
| THE HUBINGER COMPANY | KEOKUK | IA |
| THE MAYTAG CO. | NEWTON | IA |
| THE MAYTAG COMPANY | NEWTON | IA |
| THERMOLYNE CORPORATION | DUBUQUE | IA |
| THORMOLINE CORPORATION | DUBUQUE | IA |
| THRELKELD INC | CHARITON | IA |
| TIRE STUD, DIVISION OF STUDEBAKER | JEFFERSON | IA |
| TITAN TIRE CORPORATION | DES MOINES | IA |
| TITAN WHEEL INTERNATIONAL | DES MOINES | IA |
| Topin Packing Co. | Ft. Dodge | IA |
| Town of Belle Plaine – Waste Water Treatment Plant | Belle Plaine | IA |
| TOWN OF NEW LONDON | NEW LONDON | IA |
| TOY NATIONAL BANK BUILDING | SIOUX CITY | IA |
| TRI CITY BOILER COMPANY | BETTENDORF | IA |
| TRINITY LUTHERAN CHURCH & SCHOOL | CEDAR RAPIDS | IA |
| TYLER ELEMENTARY SCHOOL | CEDAR RAPIDS | IA |
| U S GYPSUM CO | FT DODGE | IA |
| U S GYPSUM CO | SPERRY | IA |
| U.S Gypsum Co. | Fort Dodge | IA |
| UNION BUS DEPOT | CEDAR RAPIDS | IA |
| UNION ELECTRIC COMPANY – POWER STATION | DUBUQUE | IA |
| UNION PACIFIC | COUNCIL BLUFFS | IA |
| UNION PACIFIC RAILROAD | CLINTON | IA |
| UNION PACIFIC RAILROAD COMPANY | COUNCIL BLUFFS | IA |
| Union Pacific RR/Chicago Northwestern | Clinton | IA |
| UNION STOCK YARD COMPANY | SIOUX CITY | IA |
| UNITED EQUIPMENT ACCESSORIES | WAVERLY | IA |
| UNITED LIGHT AND RAILWAY COMPANY – STEAM PLANT | DAVENPORT | IA |
| UNITED STATES GYPSUM | FT. DODGE | IA |
| UNITED STATES POSTAL SERVICE | CRESTON | IA |
| UNIVERSAL GYPSUM COMPANY | FT. DODGE | IA |
| UNIVERSITY AVENUE COAL CO | DES MOINES | IA |
| UNIVERSITY AVENUE SUPPLY | DES MOINES | IA |
| University of Iowa | Iowa City | IA |
| UNIVERSITY OF IOWA – EDUCATIONAL RESEARCH BUILDING | IOWA CITY | IA |
| UNIVERSITY OF IOWA – HAWKEYE (III) COURT APARTMENTS FOR MARRIED STUDENTS | IOWA CITY | IA |
| UNIVERSITY OF IOWA – PHYSICAL PLANT – STEAM DISTRIBUTION | IOWA CITY | IA |
| UNIVERSITY OF IOWA – PHYSICAL PLANT DEPARTMENT | IOWA CITY | IA |
| UNIVERSITY OF IOWA – PHYSICAL PLANT -SCHMIDT | IOWA CITY | IA |
| UNIVERSITY OF IOWA – PHYSICAL PLANT STORES | IOWA CITY | IA |
| UNIVERSITY OF IOWA – VOXMAN MUSIC BUILDING – HANCHER AUDITORIUM | IOWA CITY | IA |
| UNIVERSITY OF IOWA HOSPITAL AND CLINICS – NORTH TOWER ADDITION | IOWA CITY | IA |
| UNIVERSITY OF IOWA, BASIC SCIENCE BUILDING | IOWA CITY | IA |
| University of Iowa, Currier Hall | Iowa City | IA |
| UNIVERSITY OF NORTHERN IOWA – CAMPBELL HALL | CEDAR FALLS | IA |
| UNIVERSITY OF NORTHERN IOWA – PHYSICAL EDUCATION CENTER | CEDAR FALLS | IA |
| UNIVERSITY OF NORTHERN IOWA – PHYSICAL PLANT WALKER | CEDAR FALLS | IA |
| UNIVERSITY OF NORTHERN IOWA, 30TH & NEBRASKA, 50613 | CEDAR FALLS | IA |
| UNIVERSITY OF NORTHERN IOWA, POWERHOUSE | CEDAR FALLS | IA |
| UNIVERSITY POWER PLANT | IOWA CITY | IA |
| UNIVERSTIY AVENUE COAL CO | DES MOINES | IA |
| UPPER IOWA UNIVERSITY – GRAF HALL | FAYETTE | IA |
| US DEPT OF AGRICULTURE | AMES | IA |
| US GYPSUM CO | FT. DODGE | IA |
| US GYPSUM CO | FORT DODGE | IA |
| VA Hospital | Des Moines | IA |
| VALLEY HIGH SCHOOL | WEST DES MOINES | IA |
| VAN CAMP PACKING COMPANY | PERRY | IA |
| VEGA INDUSTRIES – HEATILATOR FIREPLACE PLANT | MOUNT PLEASANT | IA |
| VETERANS ADMINISTRATION HOSPITAL | DES MOINES | IA |
| VETERANS ADMINISTRATION HOSPITAL | IOWA CITY | IA |
| Vinton Municipal Utility | Vinton | IA |
| VIRGINIA CAROLINA CHEMICAL CO | DUBUQUE | IA |
| VISKING CORPORATION | TERRE HAUTE | IA |
| VOLTMASTER BATTERY PLANT | CORYDON | IA |
| VYLACTOS LABORATORIES | DES MOINES | IA |
| W. A. KLINGER CO., INC. | LEHIGH | IA |
| W. S. GYPSUM COMPANY | SPERRY | IA |
| W.A. Sheaffer Pen Company | Fort Madison | IA |
| W.D. DECKERT COMPANY | DUBUQUE | IA |
| W.J. Company Warehouse | Sioux City | IA |
| WABASH POWER | SPENCER | IA |
| WALDINGER CORPORATION | DES MOINES | IA |
| WALTER SCOTT JR ENERGY CENTER – UNIT 3 | COUNCIL BLUFFS | IA |
| WASHINGTON JUNIOR HIGH SCHOOL | DUBUQUE | IA |
| WATER TREATMENT PLANT | ORANGE CITY | IA |
| WATERLOO CEDAR FALLS NORTHERN RAILWAY COMPANY | WATERLOO | IA |
| WATERLOO GAS AND ELECTRIC COMPANY – WATERLOO COAL GASIFICATION PLANT | WATERLOO | IA |
| WATERLOO REGISTER COMPANY | WATERLOO | IA |
| WAYNE MANUFACTURING CO | CEDAR RAPIDS | IA |
| WAYNE MFG COMPANY | CEDAR RAPIDS | IA |
| WEIDENHAF CORPORATION, BUILDING #1037 | ALGONA | IA |
| WELLMAN DYNAMIC | CRESTON | IA |
| WEST DES MOINES HIGH SCHOOL | DES MOINES | IA |
| WEST LYON COMMUNITY SCHOOL | INWOOD | IA |
| WEST WATERLOO HIGH SCHOOL | WATERLOO | IA |
| Westdale Mall | Cedar Rapids | IA |
| WHIRLPOOL COMPANY | EVANSVILLE | IA |
| WHITE FARM EQUIPMENT | CHARLES CITY | IA |
| WHITEHEAD MACHINERY COMPANY | DAVENPORT | IA |
| WIESE CORP | PERRY | IA |
| WIGDAHL BROTHERS HARDWARE | EMMETSBURG | IA |
| WILSON & CO., INC. | CEDAR RAPIDS | IA |
| WILSON & COMPANY | CEDAR RAPIDS | IA |
| WILSON AND COMPANY, INCORPORATED | CEDAR RAPIDS | IA |
| WILSON MEAT PACKING | CEDAR RAPIDS | IA |
| Wilson Packing | Cherokee | IA |
| WILSONS FOODS | CEDAR RAPIDS | IA |
| WINGER | NEWTON | IA |
| WOODLAND COAL COMPANY | WOODLAND | IA |
| WOODWARD STATE HOSP & SCHOOL | WOODWARD | IA |
| WOODWARD STATE HOSPITAL SCHOOL | WOODWARD | IA |
| Woodward State Mental Hospital | Woodward | IA |
| XAVIER HOSPITAL | DUBUQUE | IA |
| YMCA | Cedar Rapids | IA |
| YMCA | DAVENPORT | IA |
| YMCA BUILDING-705 SOUTH CENTER STREET | MARSHALLTOWN | IA |
| YMCA OF GREATER DES MOINES – 717 GRAND AVE | DES MOINES | IA |
| YMCA- Y CAMP | BOONE | IA |
| Younkers Brothers Department Store | Des Moines | IA |