- AMTRAK
- Atomic Energy of Canada Ltd.
- Balfour Beatty. Inc.
- Bechtel Infrastructure Corp.
- Booz Allen & Hamilton, Inc
- Bovis Lend Lease, Inc.
- Bower Lewis Thrower Architects
- Bucknell University
- Burns Group
- Camden County Health Service Center
- Casino Reinvestment Development Authority
- City of Philadelphia, Division of Aviation
- Comcast Cellular Communications, Inc.
- CTE Engineers
- Daniel Frankford Engineers
- Day & Zimmermann, Inc.
- Delaware Department of Transportation
- Delaware River Port Authority
- Department of General Services
- Department of Veterans Affairs
- DMJM+Harris
- E.R. Squibb & Sons
- External Affairs, Canada
- Federal Bureau of Prisons
- Gannett Fleming, Inc.
- Gilbane
- Greyhawk
- H2L2 Architects and Planners
- Heery International, Inc.
- Hill International
- Hillier Group
- HNTB
- Jacobs Group
- Kehrt Shatken Sharon Architects
- Klein & Hoffman, Inc.
- KTA Tator, Inc.
- Kupper Associates
- Kutztown University
- LIRO Group
- Long Island Rail Road
- Long Valley Municipal Authority
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- LTK Engineering Services
- Metro North Railroad
- Michael Baker Jr., Inc.
- Muhlenberg College
- New Jersey American Water Supply Co.
- New Jersey Department of Transportation
- New Jersey School Construction Corporation
- New Jersey Transit
- New Jersey Turnpike Authority
- New York City Transit
- New York School Construction Authority
- New York State Department of Transportation
- Omnipoint Communications, Inc.
- Parsons Brinckerhoff
- Parsons Transportation Group
- Pennsylvania Department of Transportation
- Port Authority of New York and New Jersey
- Public Service Electric & Gas Co.
- R.M.Shoemaker Company
- Richard Stockton College
- Ronald Schmidt & Associates
- Rowan University
- Rutgers University
- Safetran Systems Corporation
- Southeastern Pennsylvania Transit Authority
- St. John Shipbuilding, Canada
- Stone & Webster
- STV, Incorporated
- SYSTRA Consulting
- Terminal Construction Company
- Timothy Haahs Associates
- Tishman Construction Company
- Turner Construction Company
- U.S. Army Corps of Engineers
- Union Switch and Signal Company
- Urban Engineers
- URS Corporation
- Valley Metro Rail
- Wakefern Food Corporation
- West Chester University
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