ATS Rocky Mountain

SEMA Construction is a full-service construction firm that serves clients throughout the states of Colorado and California. The company offers general contracting and design and build services for various commercial and industrial facilities. It develops a range of highways, roads, bridges, dams, reservoirs, airports and underground utilities. SEMA Construction also provides a variety of land development services, including value engineering and general site grading. The company also offers restoration, enhancement and protection services for environmental containment, industrial treatment, and waste disposal and quality facilities. Its railroad services include track construction, maintenance and rehabilitation, as well as excavation and drainage. SEMA Construction is headquartered in Centennial, Colo.

The PCL family of companies is a group of independent construction companies which carry out diverse operations in the civil infrastructure, heavy industrial, and buildings markets. Together, these companies make up the largest contracting organization in Canada and one of the largest in the United States. Offices are strategically located across North America to support work across Canada, the continental United States, Alaska, the Hawaiian Islands, and the Caribbean. Melloy Industrial Services Inc Operating in Edmonton, Alberta, Melloy specializes in heavy industrial maintenance, turnaround contracting and code vessel fabrication and modification. Melloy mobilizes up to 1, 000 trades people to execute shutdowns ranging in duration from a few days to several weeks. Monad Industrial Constructors Inc Monad, located in Edmonton, Alberta, operates primarily in Western Canada and the Northwest Territories, and is a diversified general industrial construction company servicing the oil and gas, petrochemical, mining, power, alternate energy, and pulp and paper industries. PCL Construction Enterprises, Inc is the parent company for our wholly-owned, independent operating entities located within the United States. Our three primary markets are commercial buildings, civil infrastructure and heavy industrial construction. Based in British Columbia, PCL Constructors Westcoast Inc is an open shop contracting company involved primarily in the construction of commercial, institutional, industrial and multi-family residential projects. We have two main offices located in Vancouver and Kelowna. PCL Industrial Constructors Inc A diversified general industrial construction company located in Edmonton, Alberta. Owns and operates a large sophisticated pipe fabrication shop and module yard facility. PCL Industrial Management Inc A construction management company located in Edmonton, Alberta that services the heavy industrial marketplace in Western Canada. PCL Industrial Services, Inc A full-service heavy industrial general contractor located in the oil-rich central valley of Bakersfield, California serving the southwestern United States. Owns and operates a vessel fabrication and platework facility, and an industrial painting shop. PCL Intracon Power Inc Operating in Edmonton, Alberta, PCL Intracon Power Inc offers complete power and instrumentation installations in all types of heavy industrial environments.

Harrison Western Construction Corporation has been serving the American and international mining industry for more than 30 years. The company completes every facet of the mining development process for mines producing metals, coal and industrial minerals, including the excavation and support of declines, inclines, cross-cuts, raises and slope development. Since its inception, Harrison Western Construction Corporation has completed several heavy construction projects in different types of geographic environments. These projects have been completed for private companies and for federal, state and local governments. The company has the expertise to repair and re-support old mines to be re-opened for further inspection or development, as well as to safely install the necessary seals or bulkheads in the shafts and adits of mines that have reached the end of their economic life. Harrison Western Construction Corporation is a subsidiary of Harrison Western Group, which is a full-service heavy engineering and mining construction firm specializing in natural resource development.