 | Allstate Business Insurance |
| Alliant Foodservice, Inc. |
| Ameritech |
| Amtrak |
| Aurora University |
| Citibank |
| Computer Associates |
| DePaul University |
| Discover Financial Services |
| Dreyer Health Clinic |
| Edgewater Development Corporation |
| Edward Hospital |
| Ernst & Young LLP |
| Federal Reserve Bank of Chicago |
| Fidelity Investments |
| First National Bank of Chicago |
| GEAC Computer Corp. |
| Harper-Wyman |
| Household Retail Services |
| Hyatt Regency |
| Interstate National Insurance |
| Laurus Technologies |
| Lewis University |
| Liquid Carbonic |
| Loyola University |
| Loyola Medical Health Center |
| Marriott |
| MasterBrand Industries, Inc. |
| McDonald's |
| MetroMail |
| Midland Metal Products |
| Navistar |
| Nielsen Companies |
| Niven Marketing |
| Northwestern Memorial Hospital |
| Oak Frequency Control Group |
| Oak Park Public Library |
| Packaging Corporation of America |
| PanAmerican Seed Company |
| Parco Foods |
| Perfect Plastic Printing Corporation |
| Planned Parenthood |
| Prevention First, Inc. |
| Richard Oliver Risk Managers |
| Sanofi Winthrop Pharmaceuticals |
|
Shorebank Corporation and South Shore Bank |
| Spiegel |
| Tellabs |
| United States Cellular |
| US Robotics |
| Wells Fargo |
| Zenith Electronics Corporation |
| Zurich-American Insurance |
