May 23, 2007 · Founded in 2002, BioSystem Solutions spent two years in R&D, and introduced a small, school cafeteria-sized vermicomposting unit, BioSafe™, to process up to 20 lbs/day of food waste, producing worm castings. After more R&D focused on large-scale composting, BioSystem launched three new models in 2007, two of which are agitated bed technologies.