Canada and international
Canada
Lufa Farms - Montreal greenhouse producers focusing on ultra-local sales
Sole Food Vancouver
International
The Food Systems Planning and Healthy Communities Lab has an international food systems policy database
Five Borough Farm (New York City)
NYC Parks Green Thumb has handbooks for community gardeners and a link to NYC Urban Agriculture page
Mazingira Institute (Nairobi, Kenya)
RUAF Foundation (RUAF)
EARTH University (Costa Rica) - trains students to be "agents of change" in sustainable agriculture
Soil for Life (Cape Town, South Africa) - teaching sustainable, low-cost food production methods using whatever is available