Founded in 1952, Wadsworth Control Systems Inc. is one of the oldest environmental control companies in North America. Located in Arvada, Colo., the company serves a number of greenhouse growers. Wadsworth Control Systems Inc. manufactures three product lines; climate controls, energy curtains and vent automations. Most of its controls carry the STEP name, which is an acronym for Single Total Environmental Program. Control Systems Inc.s systems help its clients in various projects ranging from new construction to retrofitting in existing greenhouses.