Seattle Tilth Association
- Promotes organic gardening in an urban setting. Lists activities, workshops, children's programs, employment and volunteer opportunities, and links to related websites.
- http://www.seattletilth.org/

Biointensive for Russia
- People-to-people environmental gardening project supported by Ecology Action and USAID. Works via Russian-language publications and seminars hosted by ecology groups and agricultural colleges in former Soviet Union.
- http://biointensiveforrussia.igc.org/

Minifarms Network
- Ken Hargesheimer teaches organic, biointensive, raised bed and market gardening, mini-farming, and ranching worldwide. Includes articles, books, programs, suggested applications, tools, and methods.
- http://www.minifarms.com/

Bountiful Gardens
- Biointensive supplies, seeds, garden tools, books, pamphlets, videos; Bountiful Gardens and Ecology Action workshops; sells all biointensive and Grow Biointensive products.
- http://www.bountifulgardens.org/

Center for Agroecology and Sustainable Food Systems
- On campus of University of California, Santa Cruz; research, education, public service program to raise ecological sustainability and social justice in food and agriculture system. Runs 2-acre Alan Chadwick Garden, and 25-acre Farm. Both sites managed wit
- http://zzyx.ucsc.edu/casfs/

Ecology Action
- Organization providing research and promotion of biointensive gardening and mini-farming, conserving soil and resources, sustainability. Includes definitions, tours, workshops, conferences, books, and brief case histories.
- http://www.growbiointensive.org/