- Altamont Infrastructure Co., LLF
- AMP Printing
- Ann Stanwood
- AT&T Matching Gift Program
- Aveda Experience Center
- Babcock & Brown LP
- Bank of America Matching Gifts
- Bank of the West Employee Giving Program
- Bernard H. & Bette B. Kaplan Fdn.
- BH Development
- Brewster West Foundation
- Cecelia Rose Foundation
- Charles Schwab Employee Matching Gifts
- Chevron
- Chevron Matching Gift Program
- City National Bank
- Contra Costa County Fish & Wildlife Propagation Fund
- Contra Costa Vet Emergency
- Cooper, White & Cooper
- Dean & Margaret Lesher Foundation
- Diablo Country Club
- Diablo Foods
- Donald & Carole Chaiken Foundation
- Donald T. & Rachel C. Valentine Fdn.
- Dow Chemical Company
- East Bay Community Foundation
- East Bay Nature
- ERM Foundation
- Folkmanis, Inc.
- Fortistar Methane Group, LLC
- Four Corners Veterinary Hospital
- Frank A. Campini Foundation
- Goddard Foundation
- Heller Jewelers
- IBM Corporation
- Independent Printing Company
- J. M. Long Foundation
- John Kikuchi & Debra Coggins
- Justice, Justice Foundation
- Kinder Morgan Foundation
- Lakeside Foundation
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- Lindsay Wildlife Museum Alliance
- Lowell Berry Foundation
- Mabel Horrigan Foundation
- Marc Kaplan
- Mark E. Brown
- Max T. & Grace D. Morgan Family Fdn.
- Mechanics Bank
- Mervyn L. Brenner Foundation
- Michael Stead Porsche
- Moore Dry Dock Foundation
- MWH Americas, Inc
- National Gardening Association
- New Canvas Media, John Hanna
- Nootbaar Family Fund at the East Bay Community Foundation
- Northwind Energy, Inc.
- Otter Cove Foundation
- Pacific Gas & Electric Company
- Pacific Service Credit Union
- Personal Wealth Management
- Posner Wallace Foundation
- Prudential Foundation
- Robert & Alice Bridges Foundation
- Robert Greenfield
- S. D. Bechtel Jr. Foundation
- Safeway: eScrip partner
- Shames Construction Company, Ltd.
- Shell Oil Products U.S.
- Shimmick Construction Co., Inc.
- Sloat Brothers LTD
- Summit Financial Group, LLC
- Tesoro
- The Eucalyptus Foundation
- Thomas E. Barnes
- Thomas J. Long Foundation
- Tyris Corporation
- Union Bank California Foundation
- ValueAct Capital Management, LP
- Wells Fargo Advisors
- Wells Fargo Foundation
- William A. Kerr Foundation
- William G. Gilmore Foundation
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