Andrew P. Marshall

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.

Kleinfelder, Inc. provides environmental engineering and construction management services. It offers architecture and design, environmental sciences and engineering, project management, construction materials engineering and testing, facility and operations compliance, risk management, water science and engineering, design engineering, geotechnical and geologic engineering, and strategic planning. The company was founded by Jim Kleinfelder in 1961 and is headquartered in San Diego, CA.

US Ecology, Inc. engages in the provision of environmental services to commercial and government entities. It operates through the following segments: Waste Solutions, Field Services, and Energy Waste. The Waste Solutions segment includes a range of specialty material management services including transportation, recycling, treatment and disposal of hazardous, non-hazardous, E&P and radioactive waste at company-owned landfill, wastewater, deep-well injection, and other treatment facilities. The Field Services segment offers specialty field services and total waste management solutions to commercial and industrial facilities and to government entities through 10-day transfer facilities and at customer sites, both domestic, and international. The Energy Waste segment provides safe and compliant energy waste management and critical support services to up-stream oil and gas customers in the Permian and Eagle Ford basins primarily operating in Texas. The company was founded in 1952 and is headquartered in Boise, ID.