CH Four Biogas is an industry leader in the field of anaerobic digestion. We have proven this with our innovative design, well-performing systems, progressive products, and our dedication to research and the furtherance of biogas technology. Anaerobic digestion is our complete focus, and our facilities speak for themselves. From our comprehensive list of services to our various implementation approaches, we are able to move all sizes of AD systems from concept to reality. Whether a 100 kW agricultural manure-only digester or a multi-MW multiple-waste-streams industrial facility, CH Four has the experience and expertise to ensure a smooth development and construction experience and reliable system performance for systems in operation. Recognizing the varying needs of our customers, we also offer a full suite of implementation services from Owner-Built to DBFOO (Design, Build, Finance, Own and Operate), as well as complementary services (such as feedstock sourcing and project financing) through our trusted partner companies.