Founded by Brian and Mary Heffernan, Five Marys Farms is a private meat producer located in Siskiyou County. The core mission of the farm is to provide high-quality, sustainably raised beef, pork, and lamb directly to consumers. Their vision revolves around transparency in farming practices and fostering a direct connection between the farm and its customers. Five Marys Farms offers a variety of products including different cuts of meat, recipes, and a family-style cookbook. They focus on the niche market of consumers seeking premium, ethically raised meat products.

Notable affiliated people include founders Brian and Mary Heffernan, who have become prominent figures in the sustainable farming community. Key achievements of Five Marys Farms include establishing a robust direct-to-consumer business model and gaining media attention for their innovative practices. The overall impact of the farm has been significant in promoting sustainable agriculture and providing consumers with a trustworthy source of high-quality meat.