- Providian Financial
- Provost and Pritchard Consulting Group
- PSBandJ
- Public Policy Inst. Of Calif.
- Public Sector
- Public Works County of LAX)
- Qualcomm, Inc.
- Quality and Compliance Consulting, Inc.
- Quality Inn Palm Springs Downtown
- Quality Suites San Luis Obispo
- Queen of the Valley Hospital
- Queen of the Valley Medical Center
- Quest
- Qumas
- Quorum Consulting, Inc.
- Radiant Medical
- Radisson Hotel and Conference Center, Fresno, CA
- Radisson Hotel San Diego
- Rady Children's Hospital
- Ralph Anderson and Associates
- Rancho Los Amigos National Rehabilitation Center
- Rancho Springs Medical Center
- Red Flex
- Redlands Community Hospital
- Reedley Community College
- Reef
- Regional Council of Rural Counties
- Regional Medical Center of San Jose
- Rehrig Pacific Co.
- Reiter Lowry Consultants Team
- Retirement Housing Foundation
- Rideout Memorial Hospital
- Ridgecrest Regional Hospital
- Rim O' The World Association of Realtors
- Rio Linda Union School District
- Riverside Community Hospital
- Riverside Convention and Visitors Bureau
- Riverside University Health System Medical Center
- Robert E. Bush Naval Hospital
- Robla School District
- Rocklin Park Hotel
- Rocklin Police Department
- Rockwell Collins
- Roman Catholic Diocese of Orange
- Ronald Reagan UCLA Medical Center
- Ronald Reagan UCLA Medical Center
- Roseville City School District
- Roseville Police Department
- Roto
- RPM