Clyde Companies operates through its subsidiaries, including heavy civil construction firm W. W. Clyde & Co., which builds highways, bridges, power plants, dams, and other projects through the Intermountain West. Other subsidiaries include aggregate producers Geneva Rock Products and Gorge Rock; construction products manufacturer Sunroc; and Beehive Insurance, which provides insurance products geared to the construction industry and other clients. Family-owned Clyde Companies traces its roots to 1927, when a construction company was established by Wilford W. Clyde, the grandfather of current company president and CEO Wilford Clyde II.

Robbins Manufacturing puts most of its efforts into its construction materials operations. Through its lumber group, the company supplies pressure-treated southern yellow pine, spruce, plywood, and OSB (oriented strand board) to customers including treating plants, retail yards, and truss and pallet manufacturers. The division has lumber and distribution facilities in the eastern and midwestern US and markets its products nationwide. Robbins Manufacturing also operates in other construction-related realms.

RECON Environmental provides environmental consulting services for project planning and land development projects, primarily in the western US. Its services include conservation planning, habitat restoration, noise analysis, and air quality assessment. It works with clients in the private sector, the federal government, and state and local agencies. The company, founded in 1972, also provides architectural investigation services used to preserve cultural and biological resources, including historic sites and endangered species.. RECON Environmental has offices in California, Arizona, and Texas.

Thomas Crapper restores antique bathrooms and continues to make the Victorian and Edwardian sanitary ware that long ago made its name. Founded in 1861 by the eponymous Thomas Crapper, this venerable plumbing-fixtures company supplied the private facilities of King Edward VII and King George V. It was acquired by a rival in 1963, but later resumed business as an independent company. Products include cistern pulls and chains, wooden toilet seats, cast-iron and copper bathtubs, sink basins, shower rails, and towel racks.

Ube-Mitsubishi Cement is Japan's second largest supplier of cement and a joint venture between leading Japanese materials producer Mitsubishi Materials and diversified chemical, metals, and machinery provider Ube Industries. The company markets cement and related products manufactured by its parent companies. It primarily serves customers in the construction and industrial markets. Ube-Mitsubishi also operates a cement research institute in Tokyo. In an effort to break into the potentially lucrative Russian cement market, Ube-Mitsubishi Cement began exporting cement products there in 2008 -- a first for a Japanese company.

Renew Holdings has a fresh take on engineering and construction. The company -- through such subsidiaries as Allenbuild, Britannia Construction, VHE, Walter Lilly, Seymour, and YJL London -- offers a variety of specialized engineering and building services throughout the UK (and in the US through Lovell America). Services include land remediation and reclamation, water and rail infrastructure, and nuclear engineering. Renew's construction division builds social housing, retail, science, and education projects, as well as restorations and refurbishments. Renew is focusing growth in its specialty engineering segment and is buying engineering company Amco for nearly £20 million ($32 million).

Cementos Portland Valderrivas is 67%-owned by construction firm Fomento de Construcciones y Contratas. Cementos Portland Valderrivas has built a business on a strong foundation. The company, founded in 1903, produces some 18 million tons of cement and clinker (an intermediate product used to make portland cement) annually at 15 plants in Spain, the US, South America, Africa, and Europe. Its acquisition of 64% of Corporacion Uniland cemented its position as the #1 cement producer in Spain. In the eastern US, the company makes and distributes cement, gravel, and sand through Giant Cement Holding. It also produces concrete, operates lime factories, and has transportation companies.

Thomas Armstrong has muscled its way into being one of the leading aggregates producers in the UK. Thomas Armstrong Holdings Ltd. also makes custom joinery, concrete blocks, and prestressed concrete (flooring, stairs, and panels) and operates a general construction business (residential, commercial, and industrial) and a timber division. Thomas Armstrong, a joiner, cabinetmaker, and wheelwright, founded the business in 1830. A century later the firm converted to a limited company. It has grown through acquisitions of companies such as ACP (Concrete) Ltd., William Rainford Holdings, Barnett's, Robinson's Concrete, and Tayban Developments. Thomas Armstrong has about 15 locations across the UK.

Founded in 1902 by John Wainwright and John Luff, the company remains family-owned. John Wainwright and Co sticks to the surface of the road-paving business. The company supplies aggregates and asphalt to construction companies in the UK. Its three main products are roadstone (a crushed basalt mixture used as the top layer of the road surface), surface dressing chippings, and coated materials that offer skid resistance when vehicle tires come in contact with the pavement. John Wainwright extracts rocks and raw materials from the Moons Hill and Stoke quarries.

Western Summit Constructors, Inc. (WSCI) is a premier environmental contractor, building municipal and industrial water and wastewater facilities and associated pipelines throughout the United States. At nearly thirty years old, we've established a solid reputation as one of the finest in the industry.Originally an offshoot of Western Empire Constructors, Inc., WSCI was formed in 1981 as a separate corporation to handle heavy industrial projects. Today, we operate independently under parent company Kiewit as the Western Summit District.Western Summit's corporate offices are in Denver, Colorado; with additional offices in Atlanta, Georgia; Albuquerque, New Mexico; and two in Texas: Fort Worth and Houston. We have completed projects ranging in size from $400,000 to nearly $190 million.

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