Butler Manufacturing, maker of pre-engineered buildings, structural systems, and roof and wall systems for nonresidential construction. A subsidiary of Australia-based BlueScope Steel, Butler produces pre-engineered and custom-designed steel structures used in a range of projects, from offices to schools to shopping centers. Through its BUCON and Butler Heavy Structures units, the company provides general contracting services for large-scale projects. Butler also offers real estate development services. It distributes its products throughout North America.

Howard S. Wright Construction Co. got its start in the state of Washington and today offers design/build, general contracting, and construction management services across the Western US, including Alaska and Hawaii. The firm specializes in commercial, industrial, and institutional projects both small and large, ranging from $5,000 to $50 million. It has worked on Seattle's Space Needle and the Phoenix International Raceway, as well as apartments, hospitals, hotels, office buildings, parking garages, retail centers, schools, and aerospace and high-tech facilities. The management-owned company was founded in 1885 by, you guessed it, Howard S. Wright.

A company that was in construction before Reconstruction, McCarthy Building Companies is one of the oldest privately held builders in the US. The general contractor and construction manager ranks among the top builders of health care and education facilities in the country. Contracts include heavy construction projects (bridges and water- and waste-treatment plants), commercial projects (retail and office buildings), and institutional projects (airports, schools, and prisons). Subsidiary MC Industrial handles energy, auto, and other manufacturing projects. Timothy McCarthy founded the firm in 1864. His great-grandson, Michael McCarthy, sold the firm to its employees in 2002.

InStar Services Group rebuilds. The specialty contractor offers 24/7 emergency disaster recovery services and property reconstruction in cases of catastrophe, from hurricanes and floods to fires and waterline breaks. Services include structural renovation, dehumidification, mold remediation, electronics and machinery restoration, HVAC decontamination, and pre-disaster planning for both commercial and multi-family residential properties. It has a nationwide network of about 20 regional offices mainly along the East Coast and in the South. InStar is owned by BlackEagle Partners, a private equity firm.

Britannia Construction performs construction and civil engineering services. The company engages in the design, construction, and refurbishment of retail, commercial, industrial, leisure, and mixed-use space. Among its projects are movie theaters, business parks, and more than 100 stores for Tesco. Britannia's civil engineering unit works on infrastructure projects such as highways, bridges, sewage and drainage systems, and waste recycling facilities. Founded in 1960, Britannia Construction is active primarily in the South West, Central South, Midlands, and South Wales regions of the UK.

General contractor R. J. Daum Construction specializes in building commercial facilities. The firm's list of projects have included central offices and other facilities for Pacific Bell (now part of SBC), public works (City and County of Los Angeles fire stations), educational facilities, and health care facilities. The company serves Southern California and Nevada from its offices in Garden Grove and San Diego, California. Raymond J. Daum established the company in 1936.

S. W. Rodgers provides heavy highway, site development, concrete, and utility construction services on a contract basis. The company mostly serves Gainesville and Richmond, Virginia, in addition to surrounding areas. The company provides a turnkey offering of services, including estimating, GPS machine control, erosion control, clearing, demolition, earthwork, drilling, and paving. It also works on storm sewer projects and water lines, and installs concrete curbs, gutters, and sidewalks. S. W. Rodgers operates a fleet of more than 850 earth movers, heavy construction vehicles, and hauling trucks. Chairman and CEO Steve Rodgers founded the family-owned company in 1980.

EMCOR Group is electrical and mechanical construction. One of the world's largest specialty construction firms, EMCOR designs, installs, operates, and maintains complex mechanical and electrical systems. These include systems for power generation and distribution, lighting, voice and data communications, fire protection, plumbing, and heating, ventilation, and air-conditioning (HVAC). It also provides facilities services, including management and maintenance support. Through about 75 subsidiaries and joint ventures, the company serves a range of commercial, industrial, institutional, and utility customers. EMCOR operates primarily in the US (some 85% of sales), Canada, and the UK.

Heat Pipe Technology, Inc. was founded by Mr. Khanh Dinh in 1983.With funding fromprivateinvestors and a grant from the Department of Energy, HPT began research on newuses for heat pipes, a passive heat transfer device previously used in various applications ranging from orbiting satellites to the Alaskan Pipeline ground spikes. By applying the principle of heat pipes to air conditioning systems, the dehumidification performance and efficiency was greatly enhanced,with moisture removal increased by 30 to 50%. However, to lower fabrication costs, research and development was required. This task was performed by HPT under a three-year, $500,000 contract with NASA’s Kennedy Space Center. The outcome of that effort is a new generation of heat pipes, costing one third the price of the aerospace heat pipes, while offering the same level of performance.

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.

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