Contrary to its name, Chicago Bridge & Iron Company (CB&I) doesn't build iron bridges in Chicago. It is a global specialty engineering and construction company that designs and constructs energy infrastructure projects such as liquefied natural gas storage, petrochemical and gas processing plants, and heat transfer equipment. In addition to providing the technology used inside such facilities, the company also specializes in constructing storage tanks and other vessels. Major customers in each of these operating segments include CNOOC, Valero, Chevron, and SABIC. The company also serves other large corporations in the hydrocarbon, energy, power generation, and petrochemical industries.

Civil and environmental engineering firm Bryan A. Stirrat & Associates (BAS) specializes in municipal solid waste and hazardous waste management. The company helps customers with landfill siting and design; it also works on permitting and planning of landfill expansions and provides construction and operations support. Hazardous waste projects have included assessment and remediation on sites throughout the western US. The company operates from offices in California and Arizona. Leading consulting engineering firm Tetra Tech acquired BAS in 2009.

MasTec, Inc. operates as a specialty contractor in the United States. It involves in the building, installation, maintenance, and upgrade of utility and communications infrastructure. The company builds wind farms, solar farms, and underground and overhead distribution systems, such as trenches, conduits, cable, power lines, and pipelines, which provide wireless and wireline communications, electrical power generation and delivery, and natural gas, crude oil, and refined products transport. It also installs buried and aerial fiber optic cables, coaxial cables, copper lines, electrical and other energy distribution systems, transmission systems, and satellite dishes, as well as deploys and manages network connections. In addition, MasTec offers regular maintenance of distribution facilities and networks, as well as provides emergency services for accidents or storm damage. It serves utility, communications, and government customers. The company was founded in 1929 and is headquartered in Coral Gables, Florida.

Daewoo Engineering & Construction (Daewoo E&C) swings its hammer far and wide. The firm is one of the largest construction companies in South Korea and is active around the world. It provides construction, engineering, and architectural services for power, industrial, infrastructure, commercial, and residential projects. Daewoo E&C's portfolio includes gas pipeline and storage tanks in Asia, Africa, and the Middle East; more than 130 domestic and international highway and bridge projects; and its PRUGIO brand of upscale apartments. Founded in 1973 and spun off by the now-defunct Daewoo Group in 2000, Daewoo E&C was acquired by Kumho Asiana Group in 2006.

Tata Group comprises more than 90 companies with activities ranging from manufacturing and chemicals to consumer products and business services. Its Tata Steel unit is India's largest private steelmaker, while Tata Power is the nation's largest private power utility. Tata Motors makes the world's most inexpensive car -- the Nano -- and owns the Land Rover and Jaguar automobiles. Other units include Tata Communications (international telephone network services), Tata Consultancy Services (outsourced business services), and Tata Global Beverages (one of the top tea producers and owner of the venerable Tetley brand). Tata Group is managed through holding company Tata Sons.

Cavco Industries, Inc. engages in the design, production, wholesale, and retail marketing of manufactured homes. It produces single-section and multi-section homes, park model homes, vacation cabins, and HUD code manufactured homes, as well as commercial structures for various purposes, including offices and showrooms. The company sells its manufactured homes through a network of retailers in the continental United States under Cavco Homes and Fleetwood Homes brand names. The company was founded in 1965 and is headquartered in Phoenix, Arizona.

While Leonardo created masterpieces out of paint and canvas, Leopardo creates them from brick and mortar. One of the top contractors in Illinois, Leopardo Companies, which also has an office in South Carolina, provides an array of construction services from pre-construction and general contracting to construction management, design-build, green building, and real estate development. Projects include office buildings; health care facilities; senior housing; retail, office, and industrial space; airports; condos; and community projects, such as churches, libraries, and schools. It is also a top interiors contractor. CEO Jim Leopardo started the company in 1979.

Oltmans Construction Co. offers preconstruction, general contracting and design/build project delivery, construction management, tenant improvements, and seismic retrofits among its services for commercial and industrial buildings throughout California, Nevada, and Arizona. The company also completes its own concrete work. Oltmans is one of the top general contractors in its home state, as well as one of the top builders of distribution facilities in the US. The company was founded in 1932 and has been led by three generations of the Oltmans family.

Amerimax Building Products, Inc. is a division of Euramax International, a leading international producer of value-added aluminum, steel, vinyl and laminated products for original equipment manufacturers, distributors, contractors and home centers in the U.S. and Western Europe. With over fifty years of experience, Amerimax has established itself as a premier supplier assuring its customers of quality products delivered on a timely basis while providing outstanding value. Our dedicated team of professionals will help you solve whatever manufacturing challenges you may have. Amerimax's commitment to state-of-the-art production facilities, precision engineering, and intensive quality control ensures your business receives the value you deserve.

American Bridge Company spans the nation's modern industrial age. The firm provides general contracting, engineering, and subcontracting services to transportation, infrastructure, military, and industrial markets in North and South America. It manufactures, erects, reconstructs, and rehabilitates all manner of bridges, including cable-supported, movable, steel truss, and steel and concrete arch structures. American Bridge also specializes in near-shore marine facilities, security infrastructure, military and government buildings, and sports arenas and stadiums. It manufactures structural steel and precast concrete bridge components and specialized equipment for bridge construction, as well.

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