Founded in 1946, Oscar W. Larson is a full-service petroleum and fluid handling equipment contracting firm that operates throughout the Midwest. It also serves the automotive, airline, marine restaurant, convenience store and service industries. Oscar W. Larson employs more than 200 factory-trained technicians and licensed mechanical, electrical and heating, ventilation and air conditioning (HVAC) contractors. The company offers design, construction, excavation, remodeling, installation, building maintenance and product consulting services. It is a member of the Petroleum Equipment Institute, Construction Association of Michigan, Indiana Petroleum Marketers and Convenience Store Association and Ohio Petroleum Marketers and Convenience Store Association. Oscar W. Larson additionally features a safety program.