Selected DCTA organizational clients past and present:
- Amdahl Corporation
- Ampex Corporation
- Apple Inc.
- Apria Health Care
- Boole & Babbage
- The Calendaring and Scheduling Consortium
- California Bankers Association
- Commercial Data Servers
- Gibbs & Hill Incorporated
- IBM Corporation
- IBM Global Services
- Intel Corporation
- Kaiser Permanente Medical Care Program
- Palyn Gould Group
- Safeway Stores
- SHARE Inc.
- Sun Microsystems
- Valley Memorial Hospital
- Valley National Bank
