Heil Environmental Industries, a subsidiary of Dover Corporation, is a manufacturer of garbage and recycling trucks. For many decades, Heil Environmental has been the chief supplier of refuse and recycling equipment for the New York City Sanitation Department., which is the world's largest waste collection agency. The company has many smaller municipal customers, national publicly traded customers, and regional/small haulers as well. Heil has an extensive US dealer network and also sells & supports its products in many countries around the world.