Alamosa
Alamosa Community Hospital
Alamosa Power Plant
Denver & Rio Grande Western Railroad Co.
Four Corners Power Plant
Public Service Co. of Colorado

Aldinger
Foley Brothers & Walbridge

Anaconda
Doctor Jack Pot Consolidated Mining Co.
El Paso Consolidated Gold Mining Co.

Arapahoe City
Ashland High School

Argo
Denver Sewer Pipe & Clay Co.

Arvada
Arvada Technical Center

Aspen
Aspen Colorado Sanitation District
Aspen Valley Hospital

Aurora
Arooman Homes
Aurora City Water District
Cherry Creek Nursing Home

Avondale
Pueblo Ordnance Depot
U S Army
U.S. Corporation of Engineers

Barnham
Denver & Rio Grande Railroad Co.

Barranquilla
Cia Colombiana De Electricidad

Bessemer
Colorado Fuel & Iron Company

Boettcher
Ideal Cement Company

Bogota
Bogota Military Hospital
Fabrica De Grasas Y

Boulder
Atmospheric Research Center
Aurora 7 Elementary School
Boulder High School
Boulder Metal Products
Boulder Rolling Mills Company
Colorado State University
D & S Mechanical
Dietrich Standard
IBM
Public Service Company of Colorado
Steam Plant
University of Colorado, various bldgs.
Valmont Powerhouse

Bowie
Juanita Coal and Coke Company

Bridgeport
United Illuminating, Bridgeport Harbor Station

Brighton
Great Western Sugar Company
Greenleaf Wholesale Florist
Kitayama Brothers Greenhouse
Kuner Pickle Company

Broadmoor
Broadmoor Hotel

Broomfield
Geneva Pharmaceutical
Home Building

Brush
Beet Sugar Factory
Great Western Sugar Company
Pawnee Power Plant
Public Service Company of Colorado
Xcel Energy

Buena Vista
Colorado State Reformatory

Bunell
Fitzsimmons General Hospital

Burnham
Denver & Rio Grande Railroad Co.

Butte
Butte General Electric Company

Cali
Ingenio Rio Paila

Cameo
Cameo Power Plant
Public Service Company of Colorado

Canon City
Admin. & Rec. Building
Arkansas Valley Railway, Light & Power Co.
Centel Corporation
Clark Generating Station
Colorado Light and Power Company
Colorado State Penitentiary
Peata Verde Silver Mining Company
Southern Colorado Power Company
Southern Colorado Power Plant
Utilicorp United, Inc.
West Plains Energy

Central City
Randolph & Company, Custom Stamp Mill

Cherry Creek
Cherry Creek High School

Cheyenne Mountain
Cheyenne Lodge

Climax
American Metals Climax, Inc.
Climax Molybdenum Company

Coahuila
Cia Textile Del Norte Sa Allende

Colden
Coors Porcelain Company

Colorado City
General Palmer Residence

Colorado Springs
Air Force Academy, various buildings
Alamo Hotel and Garage Company
Alexander Industries, Incorporated
Antlers Hotel Company
Antlers Plaza Hotel
Apex Insulation
Armstrong Contracting & Supply Corporation
Broadmoor Cheyenne Mountain Highway, Hell Gate
Broadmoor Hotel
Burns Theatre
Cadet Quarters Afa
Camp Carson
Carson Residential Housing
Citizens Light, Heat & Power Company
Cletus G. Cooper, 420 S. Corona Ave.
Cletus G. Cooper, 6 1/2 W. Cimarron St.
Colorado College
Colorado School for the Deaf and Blind
Colorado Springs Electric Company
Colorado Springs Light Heat & Power Co.
Colorado Springs Rapid Transit Company
Colorado Springs Utilities
Converter Mod. Phase 1 and 2 Afa
Corley Coal Company
Denver Equipment Co.
Department of Public Utilities
Drake Power Plant
El Paso Electric Company
El Paso Gold Mine
Electric Paso Mining Company
Empire Acoustics & Fireproof
Field House Afa
Ft. Carson
Ft. Carson - Enlisted Men's Barracks
Garden Terrace Apartments
Glockner Penrose Hospital
Glockner Sanatorium
Golden Cycle Mining & Reduction Company
Gosnell Construction
Graymore Sanatorium
Heating Incorporated
Hewlett Packard
Holly Sugar Building
J.C. St. John Plumbing & Heating Co.
Las Animas Electric Company
Martin Drake Power Plant
Memorial Hospital
Municipal Power Plant
Myron Stratton Home
Olsen Plumbing & Heating
Palmer Center
Penrose Hospital
Penrose Library
Richard M. Nixon Power Plant
Skyway Park School
Strong Gold Mining Company
U.S. Air Force Academy
Union Printers Home
Western Forge Corporation

Commerce City
Asamera Oil USA
Cherokee Power House
Colorado Refinery
Conoco Oil Refinery
Continental Oil Company
Martin Marietta
Packaging Corporation of America (A/K/A Central Fibre Products Co.)
Rocky Mountain Arsenal, Shell Chemical
Rocky Mountain Service, Inc.
Schmidt Incinerators Co.
Shell Chemical

Cortez
Southwest Dugan

Craig
Colorado-Ute Electric Association, Inc.
Craig Station
Hudson Energy Company
Texaco Inc.
Tri-State Generation and Transmission
Yampa Project, Craig Station

Creede
Commodore Mining Company

Crested Butte
Colorado Fuel & Iron Company

Delta
Holly Sugar Corp.

Denver
15Th St. Investment Company
A. Coors
A.A. Cox Construction Company
A.F.L. Paint
Abex Corporation, Amsco Division
Advanced Neon Sign
Air Force Finance Center
Air Training Base
Albany Hotel Annex
American Beet Sugar Company
American Crystal Sugar Co.
American Manganese Steel Division
American Sheetmetal Shop
American Smelting & Refining Company
American Theatre
Arapahoe Power Plant
Arizona Marble Company
Armour and Company
Armstrong Contracting & Supply Corporation
Asbestos Supply
Asmay Refinery
Aurora Oil Company
B.H. Lichter and Company
Bay Petroleum Company
Bay Petroleum Refinery
Berkeley Presbyterian Church
Board of Water Commission
Board of Water Commission - Ashland Station
Boise Cascade Corp.
Braun Knecht Heimann & Co.
Breach Plumbing & Heating
Brooks Towers
Brown Elementary School
Brown Palace Hotel
Burlington Northern Railroad
C F & I Engineers, Inc.
C F & I Steel Company
C.B. & Q. Team Track
Capitol Building
Carl Andrew Con
Case Cutter
Caterpillar Tractor Company
Celebrity Lane, 320 S. Colorado Blvd.
Central Y.M.C.A.
Cherokee Steam Electric Station
Chevron Oil Company
Chicago, Burlington & Quincy Railroad Company
Children's Hospital Association
Cipra Air Conditioning
City & County of Denver - Court House
City and County of Denver Company
Coffins Packing Company
Colorado & Southern Railway Company
Colorado Building
Colorado Cold Storage Corporation
Colorado Fuel & Iron Company
Colorado General Hospital
Colorado Ice & Cold Storage Company
Colorado Packing & Provision Company
Colorado Refinery
Colorado State Home for Dependent & Neglected Children
Colorado State Industrial School
Colorado Tires and Iron Company
Columbine Building
Columbine Laundry Company
Commanche Power Plant
Conaway Furnace
Conspeco
Construction Specialties Co.
Continental Oil Company
Continental Refinery
Cosmopolitan Hotel
Courthouse Square Development
Curtis Sheetmetal
D.S. Grimes Son
Del Patrick Heating
Denver Auditorium
Denver Brick & Pipe Company
Denver City Cable Railway Company
Denver City Hall
Denver City Tramway Company
Denver Consolidated Electric Light Company
Denver Dry Goods Company
Denver Federal Center
Denver Gas and Electric Company
Denver Metro Sewage Co. Water/ Sewage Treatment Center
Denver Missile Sites
Denver Municipal Airport
Denver Ordnance Plant
Denver Public Bath & Gymnasium
Denver Sewer Pipe & Clay Company
Denver Sheetmetal
Denver Tramway Power Company
Denver US National Bank
DFC Corp. Division
Dome Investment Company, Ideal Building
Douglas Jardine Sheetmetal
Dravo Corp.
Economy Mechanical Industrial
Ernest and Cramner Building
Federal Reserve Building
Feeney Insulation
Fitzsimmons General Hospital
For Sale Per Dave Black
Fos Sheetmetal
Franklin Park Apartments
Frontier Airlines - Stapleton
Gates Rubber Company
General Electric Company
General Iron Works
Great Western Machinery Company
Great Western Sugar Company
Hendrie & Bolthoff Manufacturing & Supply Co.
Hilton Hotel
Hoffman Heights
Holy Ghost Church
Home Furnaces
Hy-Met Engineering Ltd.
Industrial Service & Engineering Company
International Rubber Company
J D Insulations
Jewish Consumptives Relief Society
Job A Cooper
Johns-Manville Corporation
Johnson Davis Power Plant
K. & B. Packing & Provision Company
Kindle & Angelo Sheetmetal
Kodak
Lacombe Power Station
Lauren Burt, Inc.
Lindrooth Shubart & Company
Liquid Carbonic Corporation
Littleton Creamery Company
Longero, Inc.
Loretto Heights College
Lowry Air Force Base
M.A. Mackay Company
Macarthur Company
Martin Marietta
Masonic Temple
May D. & F.
Mc Phee & Mcginnity Lumber Company
Meade & Mount Construction Company
Merriot Motel
Midland Savings and Loan Company Building
Midwest Plumbing and Heating, Inc.
Mile High Center
Mine and Smelter Supply Co.
Mobil Oil Corporation
Morey Mercantile Company
Morse Brothers Machinery Co.
Mountain States Engineering
Mountain States Tel & Tel
MSI Industries
Nallays Inc.
National Biscuit Company
National Cylinder Gas
Nielson Plastering
Northeast Burnzol Co.
Northwest Heating
Owens Corning Fiberglas
Penn Chemical Works
Phillip Zang Brewing Company
Phillips Elementary School
Plateau Supply Company
Porter Memorial Hospital
Powers Industrial Insulation
Presbyterian Hospital
Public Service of Colorado - Arapahoe Station
Public Service of Colorado - Cherokee Plant
Public Service of Colorado - Zuni Plant
Public Services of Colorado
Ray's Texaco Service
Red Seal Inc.
Republic Building
Robinson Brick & Tile
Rocky Mount Brewery
Rocky Mountain Arsenal
Rocky Mountain Supply
Roderick Garage
Roger Inc.
Rush Matl Distr
Rutherford Plumbing & Heating
Sam Fox Sheet Metal
Samsonite Corporation
Sayre Newton Lumber Company
Schmidt Manufacturing Corp.
Shell Chemical Company
Smith School
Southern Sierras Power Company
St. Joseph's Hospital
St. Luke's Hospital
St. Thomas Seminary
Stapleton International Airport
State Highway Department
State Steam Plant, Unit #4
Stearns Rogers Inc.
Stovers Candy
Swift & Company
Thermatic Heating
Titan Missile Sites
Total Refinery
Tower Building Denver
U.S. Bureau of Reclamation
Union Pacific Railroad Company
Union Power Plant
Union Stockyards
United Sheet Metal & Iron Works
United States Air Force
United States Federal Jail
United States National Bank Building
University Hospital, Health Sciences
University of Colorado
University of Colorado General Hospital
University of Colorado Health Services Center
US Air Force Finance Center
US West Communications
Utility Control & Equipment
Vail Association, Inc.
Van Genderen Sheetmetal
Veterans Administration Hospital
Watson Grant Co.
Webb and Knapp
Western Chemical Manufacturing Co.
Western Iron Mills
Western Packing Company
Western Sheet Metal
Westinghouse Electric & Manufacturing Co.
Wheeler Sheetmetal
William Russell Coal Company
Worthington Pump & Machinery Corporation
Xcel Energy
YMCA
Zang Brewing Company
Zuni Power Plant

Denver County
Arapahoe Power Plant

Dillon
Summit County Power Company

Divine
Triplex Corp
Colorado Interstate Gas Company

Durango
Apache Lumber
Public Service Company of Colorado
Western Colorado Power Company

East Hampton
Summit Thread Company

Eaton
Great Western Sugar Company

El Paso County
Colorado Springs Dept. of Public Utilities - Nixon Plant

Elkton
El Paso Consolidated Gold Mining Company
Elkton Consolidated Mining & Milling Company

Engelwood
Airways Incorporated
Cinderella City Mall
Federal Correctional Institute
Federal Youth Center
General Iron Works
Martin Company Plant
Natkin Contracting
Reffel J W Metal Fdy Inc.
Stainless Equipment
Theo L Carson Company
Tibbetts Plumbing & Heating

Erie
United Collieries Company

Evergreen
Wilmot Elementary School

Fairmount
Holly Construction Company

Florence
Florence Electric Street Railway Co.
Florence Light Company
Johns Manville
Pabco Building

Fort Carson
Enlisted Men's Barracks
Ft. Carson
Mess Halls

Fort Collins
Anheuser Busch, Inc.
City of Fort Collins
Colorado State University, various bldgs.
Ft. Collins Light & Power
Ft. Collins Sugar Company
Great Western Sugar Company
House Heating
J.W. Lawrence, Department M. E.
Larimer Light and Power Company
Light and Power Department
State Agricultural College

Fort Lupton
Colorado Condensed Milk Company

Fort Lyon
United States Naval Hospital
United States Veterans Administration

Fort Morgan
Great Western Sugar Company
Madre Tierra Sugar
Morgan County Construction Company
The Great Western Sugar Company

Forty Fort
Simpson and Watkins

Fountain
Colorado Springs Utilities

Frisco
Eisenhower Tunnel

Fruita
American Gilsonite Company
Fruita Refinery
Gary Community Rural Station
Gary Refining Company
Landmark Petroleum
Louisiana Pacific
Mesa Insulation
Standard Oil Refinery

Georgetown
United Light and Power Company

Gilsonite
American Gilsonite Company

Glenwood Springs
Mid-Continent Coal & Coke

Golden
Adolph Coors Brewery
Adolph Coors Company
Atomic Energy Commission
Colorado School of Mines
Colorado State Industrial School
Columbine Glass Co.
Coors Porcelain Company
Dow Chemical
Rocky Flats Power Plant
Rocky Mountain Power
Utility Control & Equipment

Goldfield
La Belle Mill, Water & Power Company

Grand Junction
American Gilsonite Company
City Hall
Climax Uranium Company
Conoco
Continental Oil Company
Grand Junction City Hall
Grand Junction Regional Center
Grand Valley Oil & Shale
Munro Supply
Public Service Company of Colorado
Redlands Water & Power Company
State Home and Training School
United States Vanadium Corporation
Veterans Administration
Walker Lybarger Construction Co., United States Atomic Energy Co.

Grand Vallely
Oil Shale Plant
U.S. Reclamation Service

Greeley
Atlas Missile Site
Brentwood Middle School
Central High School
Clover Club Foods
Court House
Dorm Unit # 3 - CSC
Great Western Sugar Company
John Evans Junior High School
Madison Elementary School
Monfort Packing Company
Scott Elementary School
State Teachers College
University of Northern Colorado
West High School
Western Sugar

Greenwood Village
Cherry Creek West Junior High School

Gunnison
Western State College

Hayden
Colorado-UTE Electric Association
Hayden Station

Herscher
Natural Gas Pipeline Company

Highlands
Ashland High School

Holly
Oxnard Construction Company

Homelake
Monte Vista Golden Age

Husted
U.S. Air Force Academy
U.S. Air Force Academy - Cadet Social Center Complex

Idaho Springs
William E. Renshaw

Independence
Golden Cycle Mining Company
Vindicator Consolidated Gold Mining Co.

Jefferson
Utility Control & Equipment

Johnstown
Coors Biotech Division
Great Western Sugar Company

Kelker
Fort Carson
Fort Carson, Butts Airfield

La Junta
Atchinson, Topeka & Santa Fe Railway Company
Burlington Northern & Santa Fe Railroad
City Light Plant
Nibco of Colorado

La Salle
Industrial Sugar Company

Lacome
Denver Gas and Electric Company

Ladora
Chemical Corps., Rocky Mtn. Arsenal
Julius Hyman Company
Rocky Mountain Arsenal
Rocky Mountain Ordnance Works
Shell Chemical Company

Lakewood
A T & T Co.
American Motors Corporation Research Center
Best Western Denver West Hotel
Duke Shepard Homes
Federal Correctional Institute
Feeney Supply Co.

Lamar
American Beet Sugar Company
City of Lamar
City of Lamar - Lamar Light & Power Department
Lamar Powerhouse

Las Animas
American Beet Sugar Company
Colorado Southeast Plant, Unit #1
Colorado Southeast Plant, Unit #2
Las Animas Electric Company

Leadville
Day Mines, Inc.
Iron Silver Mining Company
Leadville Gas and Electric Company
Leadville Light and Power Company
Twin Lakes Power Plant
Yak Mining, Milling and Tunnel Company

Leyden
Leyden Gas Plant

Limon
Residential Heating

Littleton
Electron Corp.
Gates Rubber Co.(Armstrong Rubber)
Marie Calenders
Martin Marietta

Lockwood Greene
Barber Asphalt Paving Company

Longmont
Great Western Beet Sugar Company
Great Western Sugar Company
Longmont Beet Sugar Company
Western Foundries

Louviers
E.I. Dupont De Nemours & Company

Loveland
Great Western Sugar Company

Lyons
Martin Marietta Cem Western Division

Macgregor
Colorado Utilities Corporation

Meeker
Trend Construction Corp. - Wilson Creek Field

Minnequa
Colorado Fuel & Iron Company
Crane Co X CF&L
Pueblo Division

Moncloua
Government of The Republic of Mexico

Monte Vista
San Luis Valley Beet Sugar Company

Montrose
Bullock Power Plant
Colorado-Ute Electric Association, Inc.
Western Colorado Power Company

Mount Harris
Colorado and Utah Coal Company

Naturita
Uranium Mill
Vanadium Corporation of America

New Haven
Consolidated Railway Corporation

Niwot
IBM Engineering Building
IBM Manufacturing /C/ Building
Natkin & Company

North Denver
Cherokee Station
Public Service Company of Colorado

Northglenn
Northglenn Mall

Oak Creek
Oak Creek Power Company

Oak Creek Mines
Moffat Coal Company

Oak Hills
Moffat Coal Company

Olefins
Union Carbide

Ovid
Great Western Sugar Company

Pagosa Springs
Oak Ridge Motel

Palisade
Public Service Company of Colorado
Xcel Energy

Pasto
Pasto Brewery

Platte Canon, Denver
Denver Union Water Works

Platteville
Fort Saint Vrain Power Plant
Public Service of Colorado
Xcel Energy

Port Morgan
Madre Tierra
Western Sugar

Pueblo
Acme Markets Incorporated
Alpha Beta Acme Packing Division
American Smelting & Refining Company
American Stores
Boston Food Products
Burn Zol Corporation
C.F. & I. Steel Corporation
Central High School
City Hall
Colorado Fuel & Iron Company
Colorado Laundry Company
Colorado Mental Health Institute at Pueblo
Colorado State Hospital
Comanche Powerhouse
Coppers Company
D.E. Burke
Dana Corporation Perfect
Denver & Rio Grande Western Railroad Company
H.L. Bridgeman
Mckinney Concrete Products
Nuckolls Packing Company
Opera House Block
Public Service Company of Colorado
Public Service of Colorado - Comanche Station
Pueblo & Suburban Traction & Lighting Co.
Pueblo Army Depot
Pueblo By Products Company
Pueblo Central School
Pueblo Electric Street Railway Company
Pueblo Power Plant
Pueblo Smelting and Refining Company
Pueblo Street Railway Company
Pueblo Traction and Lighting Company
Pueblo Wae Lighting Company
Rock Wool Insulating Co.
Rockwool Industries
Rust Furnace Co./Colorado Fuel and Iron
Southern Colorado Power Company
St. Mary Corwin Hospital
Standard Fire Brick Company
State Hospital Addition
Triplex of America
Union Pacific
United States Zinc Company
Utilicorp United, Inc.
Walter Brewing Co.
Xcel Energy

Rangley
The California Company
Chevron USA, Inc.
Moon Lake Electric Association

Remaco
Kaiser Industries
United Engineering & Foundry Company

Rifle
Flatiron Structures Company
Torkelson Co F G
U.S. Bureau of Mines
Union Carbide Corporation
United States Vanadium Corp.

Rocky
Dow Chemical Co - Rocky Flats Plant

Rocky Flats
Aec/Erda
Rocky Flats Power Plant
United States Atomic Energy Commission

Rocky Ford
American Beet Sugar Company
American Crystal Sugar Company
Oxnard Construction Company
Rocky Ford Power Plant
Southern Colorado Power Company
Utilicorp United, Inc.

Ruby City
Goodenough Mining & Milling Company

Rusted
U.S. Air Force Academy - Cadet Social Center Complex

Salida
Colorado Power Company
Salida Light Power & Utility Company

Santa Fe Springs
Wilshire Oil Company

Sartell
International Paper

Savanilla
Marcus Mason Company

Security
Precision Heating & Plumbing

Silver Cliff
Silver Cliff Mining Company of Colorado

Silverton
E.G. Stoiber

Somerset
Western Colorado Power Company

Sterling
Colorado Power Company
Great Western Sugar Company

Sugar City
National Beet Sugar Company
National Sugar Manufacturing Company

Swink
Holly Construction Company

Thornton
Hoffman Homes
Thornton Elementary School

Toluca
E.I. Dupont De Nemours & Company

Trinidad
Electrical Installation Company
Hawkins & Davis Crosswell Barnett Machine Co.
Trinidad Electric Light, Heat & Power Company
Trinidad Electric Railroad Company
Trinidad Electric Transmission Railway & Gas Co.
Trinidad Municipal Power & Light Dept.
Trinidad Power Plant
Trinidad Sheet Metal

Triplex
Triplex of America

Trona
American Potash & Chemical Corporation

Uravan
Union Carbide Nuclear Company
Union Carbide Corporation

Valle
Ingenio Rio Castilla

Valmont
Public Service Company of Colorado
Republic Construction Company
Valmont Station

Victor
Ajax Gold Mining Company
Gold Coin Mining & Leasing Company
Victor Fuel Company
Vindicator Gold Mining Company

Walsenburg
Frontier Power Company

Waterbury
Chase Rolling Mill Company

Waterton
Martin Marietta

Welton Air Force Base
Welton Air Force Base
Welton Air Force Base Power Plant

Westmoreland
US Aluminum Company

Wharton
Texas Gulf Company

Wheat Ridge
Cress Tile Company
Davis Brothers Floral Company
Everitt Junior High School
Highland South Apartments
Pasco Incorporated
Refcon Industries Inc.
Senior Citizens Housing, 6340 West 38th Ave.
Wheatridge Sanitation

Wilmington
Shell Oil Company

Windsor
Eastman Kodak Company
Eastman Kodak Project, Buildings C-17 & C-27
Great Western Sugar Company
Owens Corning Fiberglas

Woodland
Spreckels Sugar Co.

Woodmen
Modern Woodmen of America Sanatorium

• Denver
• Colorado Springs
• Aurora
• Fort Collins
• Lakewood

• Thornton
• Pueblo
• Arvada
• Westminster
• Centennial