Allied Waste Ind./ BFI Waste Services
Brookfield Homes
California Refuse Removal Council
Campus Gas, Inc.
Chiquita Canyon Landfill
City of Cerritos
Concord Realty, Inc.
ConocoPhillips Company/Tosco
Consolidated Disposal Service, Inc
El Monte School District
Gas-N-Save
Grand National Bank
Infilco Degremont, Inc. (Ondeo Degremont)
Northwest Jet

Olsson Construction
Orange County Fire Authority
Pebbly Beach Landfill
Petcon
Phoenix Bio Industries, Inc.
Rainbow Disposal Company, Inc.
Republic Services, Inc.
Responsible Compost Management
Silverado Constructors
Steve P. Rados, Inc.
St. George Mobil - Alliances
Summit Energy Corporation
Sunshine Canyon Landfill
Taormina Industries
Transportation Corridor Agency
University of California, Irvine
USA Petroleum Corporation
Victoria Meyer Trust
Whittier City School District