Aramark is an American food service and facilities services provider to clients in areas including education, prisons, healthcare, business, and leisure. It operates in North America and an additional 14 countries, including the United Kingdom, Germany, Chile, the Republic of Ireland, and Spain.

Covanta Holding Corporation is a private energy-from-waste and industrial waste management services company headquartered in Morristown, New Jersey. Most of its revenue comes from operating incineration facilities that serve a secondary purpose as power plants that burn trash as fuel. Covanta charges a fee for waste disposal, sells electricity produced in the process, and recovers metal for recycling.