American Medical Response, Inc.
California State University
City of Oakland
City of Piedmont
Berkley Specialty Underwriters
BNSF Railway Company
Commerce West Insurance Company
ELCO Mutual Life & Annuity
Fireman’s Fund Insurance Companies
First Group America
Forty Niners Football Company LLC
Gallagher Bassett Services, Inc.
Greyhound Lines, Inc.
HERC Rentals
Hertz Corporation
Kaiser Foundation Health Plan, Inc.
Kaiser Foundation Hospitals
Les Schwab Tire Centers, Inc.
Mapfre Insurance Companies
Marriott International, Inc.
Mazda Motor of America, Inc.
McKay & Somps Civil Engineers, Inc.
National Passenger Railroad Corp. (Amtrak)
Northland Insurance Company
Oakland-Alameda County Coliseum Authority
Patelco Credit Union
Rail America and subsidiaries
Regents of the University of California
Safeco Insurance Companies
Sentry Insurance
Subaru of America, Inc.
The Permanente Medical Group, Inc.
Tokio Marine & Fire Insurance Company, Ltd.
Union Pacific Railroad Company