| Air Products and Chemicals, Inc. |
| American Cancer Society |
| American Red Cross |
| AmeriCorps - St. Paul's Community Development |
| Ameriprise Financial/American Express |
| B. Braun Medical, Inc. |
| Bloomberg LP |
| Cambridge Associates |
| Campbell's Soup |
| Capgemini (formally Kanbay) |
| Central Hudson Gas & Electric |
| Cherry Weber & Associates, P.C. |
| Cintas |
| Cisco |
| City Year - Greater Philadelphia |
| Clarix LLC |
| Clark Construction |
| Colgate Palmolive |
| Deloitte & Touche . |
| Deloitte Regulatory Division |
| Dewberry |
| Disney Consumer Products |
| Exxon Mobil |
| First Energy |
| First Investors Corporation |
| Flowserve |
| Foster Wheeler North America |
| GlaxoSmithKline |
| Glen Mills Schools |
| Herbert, Rowland & Grubic, Inc. |
| IBM Global Business Services |
| Johnson & Johnson IMLDP |
| Jones & Bartlett Publishers |
| Juvenile Justice Commission |
| KidsPeace National Centers |
| Layne Christensen Company |
| Lehigh Cement Company |
| Lutron Electronics |
| M & T Bank |
| Mallinckrodt Baker |
| Merck & Co., Inc. |
| Merrill Lynch |
| MetLife Financial Services |
| Management Planning, Inc. |
| Northwestern Mutual - The Nemec Group |
| Olympus |
| Penn Color |
| Picatinny Arsenal |
| Power Medical Interventions |
| Procter and Gamble |
| PsychoGenics |
| Rettew Associates |
| SEI Investments |
| Siemens Medical Solutions (Bayer) |
| Teach for America |
| Thomson Corporation |
| Toll Brothers, Inc. |
| Torcon, Inc. |
| Tullett Prebon |
| Turner Construction |
| URS Corporation |
| Van Cleef Engineering Associates |
| Veritable |
| Victaulic |
| Walden & Associates |
