Municipalities
Industrial
- Acme Corrugated Box Company
- Alumax Extrusions
- Ametek/US Gauge Division
- Arcelor Mittal Steel
- Baldwin Hardware
- Betz Dearborn
- Bulova Technologies
- C & D Charter Power Systems
- Cenveo
- Congoleum Corporation
- Connelly Containers, Inc.
- Crown Cork & Seal Company
- Dana Corporation
- E.I. DuPont de Nemours & Co.
- Exide Battery Corporation
- Foamex Corporation
- Finneran & Haley, Inc.
- G.E. Power Systems Composites
- H.J. Heinz & Company
- Inolex Chemical, Inc.
- Jet Plastica
- Keystone Cement Company
- Keystone Helicopter
- Kurz-Hastings, Inc.
- Mars Electronics
- Martin Limestone
- J.P. Mascaro & Sons, Inc.
- MAB Paints
- Mack Trucks, Inc.
- PQ Corporation
- Packaging Coordinators, Inc.
- Purolite Company
- Quebecor Printing Corporation
- Shenango Steel Company
- Shop-Vac Corporation
- Sim-Kar Lighting Fixture Company
- Smurfit-Stone Container Company
- Sunoco Refining & Supply, Inc.
- Textron Lycoming
- Waste Management, Inc.
- Westinghouse Electric
- Williard Corporation
- Worthington Steel Company
Food & Bev
- Anderson Bakery Company
- Basciani Foods, Inc.
- Bickels Potato Chips
- Blommer Chocolate Company
- Coca-Cola Bottling Company
- Cardile Mushrooms
- D'Ambrosio Bakery
- Devault Foods
- Gertrude Hawk Chocolates
- Good Humor/Breyers Ice Cream
- Hanover Foods
- H J Heinz Company
- Herr Foods, Inc.
- J&J Snack Foods
- Jack & Jill Ice Cream
- JustBorn Foods
- Kaolin Mushroom Farms
- Keystone Foods, Inc.
- Lehigh Valley Dairies
- Maier's Bakery
- Modern Mushroom Farms
- Ore-Ida Foods
- Pepsi-Cola Bottling Company
- Phillip's Mushrooms
- Quaker Oats Company
- Sly Fox Brewing Company
- Stoudts Brewing Company
- Talluto Authentic Italian Foods
- Turkey Hill Dairies
- Victory Brewing Company
- Yards Brewing Company
Commercial
- AMC Theatres
- American Tower, Inc.
- Bozzuto Management
- Campus Apartments, Inc.
- Cardinal Health Systems
- Cintas Corporation
- DePaul Group
- Marriott Hotels, Inc.
- Dranoff Properties
- FirstService Residential Management
- Forman Mills
- Genuardi Supermarkets
- ING Direct
- Holy Redeemer Health System
- Jones Lang LaSalle
- Metro Club Condominiums
- Penn's Landing Corporation
- Philadelphia Management Company
- Pitcairn Properties
- Plymouth Meeting Mall
- Preferred Real Estate, Inc.
- Ramada Inn
- Reading Terminal Market
- Safeguard Business Systems
- Robert Wise Management Company
- Sheet Metal Workers International
- Sysco Food Services
- Tower Investments
- Universal Health Services of PA
- Verizon Communications
- Victory Condominiums
- William Penn House
Institutional
- Academy of Music
- Big Brothers/Big Sisters of America
- Bristol Township School District
- Bucks County
- Cathedral Village Retirement Homes
- City of Philadelphia
- Collegium Charter School
- Diocese of Pittsburgh
- Downingtown School District
- Dunwoody Estates
- First District Self Help
- Historic Landmarks for Living
- Kimmel Center for the Performing Arts
- Philadelphia Eagles
- Seton Hill University
- Susquehanna University
- Temple University
- The Union League
- The University of the Arts
- White Horse Village
- Widener University
- Wissahickon School District
- Wordsworth Academy
Pharmaceutical
- Animas Inc.
- Astra Merck
- Bilcare Inc.
- Cardinal Health Systems
- Cephalon
- Chiral Technologies
- Covance
- DuPont-Merck Pharmaceuticals
- Fisher Services
- Glaxo Smith-Kline
- Kensey-Nash Corporation
- Ortho-McNeil Pharmaceuticals
- Tengion Inc.
- West Pharmaceutical Services
