- Agland Investment Services, Inc.
 - Larkspur - Provides consulting, management, and investment services to the agricultural, environmental, and natural resource sectors worldwide. - Agra Tech, Inc.
- Pittsburg - Specialises in commercial greenhouses.
- Bacchini's Fruit Tree
- Brentwood [Contra Costa County] - A family owned and operated picked and u-pick fruit stand. Offers cherries, blackberries, apricots, walnuts, and more.
- Beyond Organic
- Marshall - Public relations and marketing consulting group focused on food safety, environmental quality, and the loss of agricultural lands.
- Bioscape
- San Francisco - Plant doctors on call to help gardeners and growers avoid harsh pesticides and use the least toxic products more successfully.
- DriWater Inc.
- Santa Rosa - Offers a self contained drip irrigation system in the form of a gel (non-polymer) that gradually converts back to liquid when placed in the micro-biological environment of natural soils.
- Hydrex Pest Control
- Petaluma - Chemical free termite treatment and general pest control.
- Maxforce
- San Francisco - Pest control operator resources.
- North Coast Resource Management
- Redwood Valley - Provides GPS equipment, rental, training and education. Also provides land management consulting services.
- Pacific Coast Tropical Gardens
- Menlo Park - Retailer of seeds of subtropical and tropical ornamentals, fruits, herbs, palms, rare and unusual species; and related books.
- Sea Pal
- Fort Bragg - Manufacturers of organic liquid kelp and fish emulsion plant fertilizers.
- Soil and Plant Laboratory, Inc.
- Santa Clara - Serving the horticultural industry with soil, plant, and water testing, diagnosis, amendments, and current information.
- Totally Organic Product Supply
- San Jose - Featuring Suppressa and PROrganic natural fertilizers.
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