| AT&T |
Bell Atlantic |
| Bell Canada |
Blue Cross of Rhode Island |
| CIGNA Corp. |
Citicorp |
| State of California |
Dun & Bradstreet |
| Ernst & Young |
Finland Ministry of Labor |
| State of Florida |
GTE |
| Harrah's Marina Casino |
Hewlett-Packard |
| Johnson & Johnson |
Merrill Lynch |
| MCI WorldCom |
Monsanto Corp. |
| Motorola |
NationsBank |
| Nationwide Insurance |
Netherlands Transport Ministry |
| Nomura Research Institute |
Sears |
| Schering-Plough |
Southern New England Tel. |
| Telecom Australia |
Telecom Italia |
| Telecom New Zealand |
U.S. Air Force |
| US WEST |
VISA International |
| Xerox Corp. |
