Large producers get the nod from large buyers and deal in a quanity that is attractive to wholesalers. Those in controlled substances such as milk and eggs deal through the marketing boards and large dairies and egg grading stations.
Small producers have to be a little more innovative to get noticed. One of the favorite ways is through the many farmers markets held throughout Vancouver Island. It gives the farmer an opportunity to make relationships with the customers and on Vancouver Island the population does try to support local agriculture. Many local restaurants also buy produce from local farmers and the organically grown product gets a lot of attention. There are also many farmgate sales of produce. Regulations are established by the local Vancouver Island Health Authority and the Provincial Government and can be accessed through www.viha.ca in the food safety section.
The wine industry is well established on the Island and most of the winery sell direct to the public as well as through local liquor outlets. Many of the vineyards also grow the grapes and sell to others for processing. Ther are many wonderfully successfull operations and google will lay them out for you on a search of Vancouver Island wines.