Located in Warren, Mich., Janssen Refrigeration is a licensed and insured full-service organization providing commercial, industrial ammonia, freon refrigeration, heating, ventilation, air conditioning, compressors and boilers. The company serves a wide range of industries, such as automotive industry, wind tunnels, industrial businesses, meat and fish packers/processors, cold storage warehouses, bakeries, dairies, ice cream, bottling plants and restaurants. Janssen Refrigeration also provides heating and air conditioning systems for office buildings and manufacturing companies. The firm is a member of International Institute of Ammonia Refrigeration, Refrigeration Service Engineers Society and National Federation of Independent Businesses, among others.