Established in 1957, Clausen Companies is a provider of heating, ventilating, and air conditioning (HVAC) supplies. Based in Clinton, Iowa, the company also provides warehousing, trucking, and contract labor services. Its trucking department offers transportation services, such as food grade dry bulk delivery, pneumatic/vacuum pneumatic trailers, dry freight delivery, rail car loading/unloading and storage. The company s contract labor division caters to local industrial employers, with semi-skilled and skilled labor under long term contract. Clausen Companies provides transportation access to Interstate 80 and caters to local, national as well as international clients.