Quest Resource Holding Corporation, together with its subsidiaries, provides solutions for the reuse, recycling, and disposal of various waste streams and recyclables in the United States. The company provides disposal and recycling services for cardboard, paper, metals, used motor oil, oil filters, scrap tires, plastics, grease, cooking oil, food waste, expired food products, glass, separator and tank cleaning, construction debris, regulated waste, batteries, mercury, lights and electronic devices, as well as regulated and non-regulated solid, liquid, and gas wastes. It also offers antifreeze and windshield washer fluid; dumpster and compacting equipment; and other minor ancillary services. The company’s services focus on the waste streams and recyclables from big box retailers, including grocers, and other specialty retailers; transportation, logistics, and fleet operators; manufacturing and industrial facilities; automotive after-market operations, such as automotive maintenance, quick lube, dealerships, and collision repair; multifamily and commercial properties; restaurant chains and food operations; and construction and demolition projects.