Laing O'Rourke has built a reputation for designing and building major commercial and industrial properties, roads, rail systems, entertainment complexes, airfields, and maritime support facilities. The group works on several of the UK's private finance initiative projects for public-sector infrastructure. Laing O'Rourke operates primarily in Europe, but also has growing operations in the Middle East, Asia and Australia. Chairman and CEO Ray O'Rourke founded the group in 1978 and acquired Laing Construction in 2001. The company is part of a consortium (including CH2M Hill and Mace) that will manage development of London's Olympic Park.

Ducon Technologies provides custom equipment for refineries, mining and incineration operations, cement works, power boiler operations, and paper mills, among others, to help control atmospheric pollutants, and to monitor emissions, thereby helping its customers with their compliance to EPA and local environmental regulations. The company's equipment offerings include activated carbon absorbers, electrostatic precipitators, flue gas desulphurization equipment, gas absorption towers, incineration systems, and particulate scrubbers. Ducon Technologies claims to serve all FORTUNE 500 companies.

Orion Marine Group, Inc. operates as a marine specialty contractor serving the heavy civil marine infrastructure market. The company provides a range of marine construction and specialty services on, over, and under the water along the Gulf Coast, the Atlantic Seaboard, and the Caribbean Basin, as well as the Pacific Northwest. The company’s marine construction services include construction of marine transportation facilities, marine pipelines, bridges and causeways, and marine environmental structures. Its marine transportation facility construction projects comprise public port facilities for container ship loading and unloading; cruise ship port facilities; private terminals; recreational use marinas and docks; and other marine-based facilities. Orion Marine Group’s marine pipeline service projects consist of the installation and removal of underwater buried pipeline transmission lines; installation of pipeline intakes and outfalls for industrial facilities; construction of pipeline outfalls for wastewater and industrial discharges; river crossing and directional drilling; and creation of hot taps and tie-ins. Its bridge and causeway projects include the construction, repair, and maintenance of bridges and causeways, as well as the development of fendering systems in marine environments; and marine environmental structure projects primarily comprise the installation of concrete mattresses to ensure erosion protection, and the installation of geotubes for wetlands and island creation. In addition, the company offers dredging services; specialty services, including salvage, demolition, surveying, towing, diving and underwater inspection, excavation, and repair; diving services; and survey services, including surveying pipelines and performing hydrographic surveys. Its customers include federal, state, and local governmental agencies, as well as private commercial and industrial enterprises. The company was founded in 1994 and is headquartered in Houston, Texas.

The Monarch Cement Company, together with its subsidiaries, engages in the manufacture and sale of portland cement and ready-mixed concrete under the MONARCH brand name. Its products also include concrete products, and sundry building materials that are used in highway, bridge, and building construction. The company sells its products primarily to contractors, ready-mixed concrete plants, concrete products plants, building materials dealers, and governmental agencies in Iowa, Kansas, Nebraska, Missouri, Arkansas, and Oklahoma. The Monarch Cement Company was founded in 1908 and is based in Humboldt, Kansas.

Adonel Concrete has its footprint firmly planted in South Florida. With six concrete plants, the privately-owned company is a materials supplier to residential and commercial construction projects from Key Largo to Palm Beach. It makes concrete and special mixes that repel water, inhibit corrosion, and self compact. Clients have included homebuilders Caribe Homes and Lennar, Perini Marine Construction, and Trans Florida Development. President Luis Garcia, an immigrant from Nicaragua, started the company in 1984 with a single employee and a single truck. Adonel Concrete has expanded to some 150 trucks and about 250 employees.

Hardin Construction private contractor offers design-build services, construction management, general and interior construction, and renovation for commercial projects including shopping malls, office complexes, multifamily residences, and hotels. The company also manages education, government, and health care projects. Hardin has completed projects in nearly 30 states, as well as in Mexico, Puerto Rico, and the US Virgin Islands. Repeat clients have included Chelsea Property Group, Georgia Institute of Technology, Cousins Properties, and Simon Property Group. Founded in 1946 by Ira Hardin, the firm was acquired by employees in 1993.

Soave Enterprises is suave enough to manage multiple lines of business. The company's wide-ranging interests are divided into four main industries: real estate (residential and industrial development), auto dealerships, beer distribution, and a catch-all diversified holdings group that includes businesses ranging from waste collection and transportation to scrap metals processing as well as units engaged in hydroponic tomato gardening and taxi services. The bulk of Soave's operations are in Michigan. President and CEO Anthony Soave, who founded the company in 1961, owns Soave Enterprises.

From testing for toxic mold to cleaning up oil spills, GeoTek Engineering & Testing Services offers an array of environmental engineering services. Services include site assessment, environmental consulting, and laboratory testing. The South Dakota company, which operates primarily in the midwestern US, is not affiliated with Massachusetts-based GeoTek Engineering, Inc.

Cajun Industries builds oil refineries, power plants, process plants, water-treatment plants, and other industrial and infrastructure projects, primarily in Louisiana and Texas. Subsidiary Cajun Constructors provides a full range of services from design/build to maintenance; Cajun Deep Foundations offers drilling, piles installation, and related services. Cajun Maritime focuses on marine, coastal, and oilfield services including construction, repair, and power distribution. Cajun Equipment Services manages a fleet of trucks and trailers that transport heavy and specialized loads. Chairman and owner Lane Grigsby founded the company as Cajun Contractors and Engineers in 1973.

Wayne J. Griffin Electric brings a certain spark to New England and the Southeast. With offices in Massachusetts, Georgia, North Carolina, and Alabama, the electrical contractor offers construction and installation services on hospitals, hotels, industrial and high-tech buildings, offices, prisons, research laboratories, retirement communities, and schools. The company's service division provides small project management and facility maintenance, while its telecom division designs and installs fiber optics, fire alarm, and security systems, as well as systems that control energy use, from lighting to heating, ventilation, and air conditioning (HVAC). Founded in 1978, Wayne J. Griffin Electric is privately held.

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