- ABM
- American Airlines
- Amoco
- Amstar
- Avis
- Bally, USA
- Balboa Travel
- Baskin Robbins
- Budget Rental Car
- Busch Gardens
- Chevron Business Services
- Chevron HRSC
- Cintas
- Club Med Sales, Inc
- DTCC
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- eLoyalty
- Exxon Company, USA
- FFF Enterprises
- Frito Lay
- Hospitality Product Supply
- IBM
- IGT
- Key Travel
- MBNA, America
- MBNA, International
- Monrovia Nursery
- Nestle
- Northrop Grumman
- Option 1 Mortgage
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- Oracle
- Panalpina
- Paramount’s Great America
- PepsiCo
- Phillips Petroleum
- Rosenbluth Travel
- Sea World
- Sonepar USA
- Tenet Health Care
- The Dow Chemical Company
- The Honest Kitchen
- Travel Impressions
- Vizient
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- Aquarium of the Pacific
- Central Washington University
- Pacific Business Group on Health
- Stanford University
- University of California, Los Angeles Conference Services
- University of California, San Francisco
- University of San Diego
- University of Southern California
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