Below is our complete client list.
ABEX Corporation
Allegheny County Department of Aviation
Allegheny County Department of Public Works
Allegheny Power Systems
Allegheny Valley Joint Sewage Authority
Aloe Coal Company
Alternate Gas Inc.
Altoona (City of)
American States Insurance Company
B & O Railroad
Bethlehem Mines Corporation
Bradford Sanitary Authority
Butler Area Sewer Authority
Canonsburg-Houston Joint Authority
Chautauqua County Department of Public Facilities
Chicago, City of
Chicago Department of Transportation
Clearfield Municipal Authority
Commonwealth of Pennsylvania Department of Environmental Protection
Commonwealth of Pennsylvania Department of Labor
Commonwealth of Pennsylvania Department of Transportation
Commonwealth of Pennsylvania Fish Commission
Conrail
Consol Coal Company
Consol Energy
Controlled Demolition, Inc.
Cranberry Commons Joint Venture
Delaney Construction
Dick Corporation
Eastern Industrial Services, Inc.
Empire Environmental
Erie County Soil and Water Conservation District
Erie County Department of Public Works
First Energy
Forest City Commercial Construction, Inc.
Gilbane Building Company
Glenn Engineering
Greater Johnstown School District
Greyhorse Professional Services
Homer City Water Authority
Hussey Copper, Ltd.
Illinois Department of Transportation
Johnstown Redevelopment Authority
Kelly Run Sanitation
Kiski Valley Authority
Kurtyka Enterprises
LaVale Sanitary Commission
Lykes Resources, Inc.
Mobay Chemical Corporation
Mucci Construction
New York State Department of Transportation
New York State Thruway Authority
Niagara Frontier Transportation Authority
Pennsylvania Department of Transportation
Pennsylvania Turnpike Commission
Peters Creek Sanitary Authority
Peters Township Municipal Authority
Phillipsburg Center Associates
Pittsburgh (City of), Bureau of Building Inspection
Pittsburgh (City of), Department of Construction and Engineering
Pleasant Unity Municipal Authority
Port Authority of Allegheny County
Quaker State Oil Company
Redevelopment Authority of New Kensington
Robinson Township Municipal Authority
Rostraver Township
Soil Conservation Service
Sanderling, Inc.
Shade Landfill
Sports and Exhibition Authority
St. Mary's Area Water Authority
Susquehanna Area Regional Airport Authority
Taylor County Development Authority
United States Corps of Engineers
United States Department of Agriculture
United States Postal Servce
University of Illinois
USX Steel Corporation
Valleybrook Shoppes Associates
Volkswagen of America
Wadwell Group
Waller Corporation
Washington-East Washington Joint Authority
Waste Management
Wellsburg Sanitary Board
West Virginia Division of Highways
Westinghouse Electric
Westmoreland Municipal Authority
Wheeling (City of)
Wood County Parks and Recreation
Zinc Corporation of America
Includes Affiliate Projects