CH2M HILL Companies, Ltd. provides engineering, construction, consulting, design, design-build, procurement, engineering-procurement-construction (EPC), operations and maintenance, program management, and technical services in the United States and internationally. It operates in Energy and Industrial; Environment and Nuclear; Transportation; Water; and Power EPC segments. The Energy and Industrial segment offers consulting, planning, design, engineering, design-build, operations and maintenance, construction management, construction, and program management services. The Environment and Nuclear segment provides environmental, government facilities design and operations, and nuclear engineering and consulting services that cover decontamination, remediation, waste management, design-build delivery, operations and maintenance management, construction management and program management services. The Transportation segment offers horizontal and vertical infrastructure development services, such as procurement and technical advisory, transportation planning, environmental studies and documentation, design engineering, design for design-build, project/program management, construction management, and operations and asset management services for the aviation, highway and bridge, ports and maritime, and transit and rail market sectors. The Water segment provides integrated and sustainable solutions to the wastewater, drinking water, industrial water, conveyance and storage, water resources and ecosystem management, and intelligent water solutions industries. It serves clients in the utility, industrial, government, energy, agricultural, and sports sectors. The Power segment designs and builds power generation facilities; and repowers, upgrades, and modifies existing plants. CH2M HILL Companies, Ltd. was founded in 1946 and is headquartered in Englewood, Colorado.