Edward F. Heil

Nestor, Inc. through its wholly owned subsidiary, Nestor Traffic Systems, Inc. provides innovative video based traffic safety and enforcement systems to state and local governments. The company's principal product, CrossingGuard incorporates patented image processing technology into an intelligent turnkey solution that predicts and records the occurrence of a red light violation and manages the entire process of issuing and processing a citation. It was founded in 1975 and is headquartered in Providence, RI.

US Ecology Holdings, Inc. engages in the provision of industrial waste management and recycling services to commercial and government entities, including refineries and chemical production facilities, manufacturers, electric utilities, steel mills, medical and academic institutions, and waste brokers. It operates through the Environmental Services, and Field and Industrial Services segments. The Environmental Service segment provides a range of hazardous material management services including the transportation, recycling, treatment, and disposal of hazardous and non-hazardous waste at company-owned landfills, wastewater, and other treatment facilities. The Field and Industrial Services segment offers packaging and collection of hazardous waste and total waste management solutions at customer sites and through its 10-day storage facilities. The company was founded in 1952 and is headquartered in Boise, ID.