End Systems knows absolutely no end in providing a variety of services in HVAC and electrical contracting. The company primarily manages, documents, and tests the work of installers. Included among these services are creating computer-generated fitted drawings for building services and testing buildings for air tightness and water treatment. End Systems also provides energy log books to building managers to document their property energy requirements. Clients have included Bovis, AstraZeneca, and Amec. Managing director Brian Townsend started the company in 1976.

The RDI Group operates three business units specializing in the design and manufacture of highly engineered equipment for the asphalt roofing, construction and metal coil processing industries. These machinery and manufacturing solutions designed, built and commissioned by Reichel & Drews and Chicago Slitter have been helping customers improve productivity and profits since the early 1900s. Hundreds of patented designs and thousands of installations attest to the leadership role the RDI Group business units hold in the continuing quest for innovative technology.

RMJM designs big. As one of the world's largest architecture firms, with offices in some 16 cities throughout North America, Asia, the Middle East, and Europe, RMJM draws blueprints for an array of projects. It serves a wide range of clients in the educational, commercial, industrial, leisure, retail, residential, scientific, health care, and public sectors. Major projects span the globe and include the Dubai Convention Centre, The Scottish Parliament, and the Synygy World Headquarters. In 2007 RMJM merged with the established US-based Hillier Group. The deal brought RMJM a well-known firm in North America, where it lacked a presence. The US arm dropped the Hillier name in 2008.

American Asphalt is paving the way for a smooth ride in northeastern Pennsylvania. American Asphalt Paving, Co. provides asphalt paving products and services through its crushed aggregates, paving, and grading and excavating divisions. American Asphalt Paving, Co. also offers used equipment (aggregate, asphalt, mobile, and lab equipment) for sale. American Asphalt operates from locations in Shavertown and Plains, Pennsylvania, and has plants in Chase and Keystone. Bernard Banks Sr. founded American Asphalt in 1951. American Asphalt Paving, Co. continues to be owned and managed by the Banks family.

Orascom Construction Industries (OCI),the Egyption company offers construction services and fertilizer products primarily in the Middle East, North Africa, and Central Asia. OCI performs large-scale commercial, industrial, and infrastructure engineering and building services; principal operating units include the Besix Group in Belgium and Contrack International in the US. Its fertilizer operations include Egyptian Fertilizer Company and Gavilon. The company sold its cement operations to building materials behemoth Lafarge in 2008.

M J Gleeson Group has gleefully shedded its noncore operations. The company has sold or otherwise cut loose its rail, concrete, and engineering businesses to focus on three areas: housing regeneration, commercial property development, and strategic land trading. Gleeson Regeneration works with local governments to build urban planning projects under private finance initiatives. Gleeson Commercial Property Development has some 16 properties in development. Gleeson Strategic Land manages the company's land bank, currently at around 2,500 acres. Michael Joseph Gleeson, who was the great-uncle of current chairman Dermot Gleeson, founded the firm in 1903.

W.G. Mills has been going to school. The construction management and general contracting company is one of Florida's top school builders, tackling some 200 education facility projects. Operating as Mills Gilbane, the company also builds industrial, commercial/retail, residential (such as clubhouses and golf-course homes), and health care facilities. Its public facility projects include libraries and police stations. One of the top contractors in the US, Mills Gilbane is also a leading construction management at-risk firm. CEO Walter G. Mills founded his namesake business in 1972. Rhode Island-based Gilbane Building bought the company in 2010.

Dallas Contracting Co. is demolition. The specialty contractor provides demolition of industrial and commercial facilities (including structures such as water towers, concrete silos, and steel tanks), onsite concrete crushing, and salvage and scrap metal removal and recycling. The company also provides equipment removal, interior dismantling, plant decommissioning, environmental remediation, and brownfield redevelopment. In addition, it sells used and surplus equipment, from air conditioning units to generators. Dallas Contracting Co. began operating in 1979. It serves clients throughout the US; they have included Exxon Mobil, Honeywell, and K. Hovnanian.

E-J Electric Installation, established in 1899 by Jack Enright and Theodore Joseph, has provided electrical contracting services almost as long as the electric industry has been around. The company offers a wide range of services, from small electrical maintenance projects to the construction of power plants. It designs, installs, and maintains communications networks through E-J Communication Systems. The company's Mutual Electric division handles retail projects. E-J also has worked in the transportation, data center, and health care, industries. Chairman J. Robert Mann and his family control E-J Electric Installation, which was acquired by Mann's father, Jacques, who first joined the firm in 1912.

Guarantee Electrical has been powering up St. Louis since it "guaranteed" to electrify the World's Fair in 1904. (It delivered on the guarantee). Now a major US electrical contractor, the company offers commercial, institutional, and industrial services including construction, design/build, communications/data, and maintenance. Guarantee Electrical operates throughout the country and has worked on such varied projects as the MGM Grand in Las Vegas and several post office and prison facilities. Its GECO Systems division installs and services intercom, closed-circuit television, and other audio-visual systems. The Oertli family owns and operates the firm.

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