STV Group helps create the systems through which SUVs, LRVs, and 747s can travel. Its subsidiaries provide architectural, engineering, environmental, construction management, interior design, and planning services for infrastructure projects include airports, light-rail systems, ports, and railroads. Its security division, established in 2008, conducts threat assessments and mitigates safety strategies for facilities. The group serves public and private clients around the world, but primarily in the US. The employee-owned STV Group was founded in 1912 and taken private in 2001.

Environmental Mill & Supply specializes in the rustic look. The company provides a variety of wood products for residential or commercial applications. Environmental Mill & Supply produces such wood products as post oak and aromatic cedar paneling, pine decking, cedar and pine siding, trusses, beams, flooring, and more. Environmental Mill & Supply uses planers, edgers, bandsaws, and other equipment to make mouldings and custom woodwork that have a more finished look. The company sells leftover cedar sawdust and shavings by the bag or truckload for stable and stall use.

United McGill Corporation is all about air. Its subsidiaries manufacture the ductwork for HVAC systems (McGill AirFlow), make adhesives and sealants for those systems and ducts (McGill AirSeal), and produce air pollution control equipment, like filters and wet electrostatic precipitators, that clear the air (McGill AirClean). Its McGill AirPressure subsidiary builds autoclaves and vacuum dryers used by aerospace, electronics, pharmaceutical, and chemicals industries and, finally, McGill AirSilence makes industrial and HVAC silencers and panel and curtain systems for noise control.

Danze & Davis Architects provides residential design and architectural services. The firm specializes in custom designing detached and attached homes. It offers about a dozen different collections of architectural plans for its home designs in book and CD formats. Danze & Davis also provides architectural services for light commercial and industrial projects. Leo P. Danze and H. Ross Davis founded the firm in 1960.

Membership has its privileges -- a lower price is one of them. Through Lumbermens Merchandising Corporation (LMC) more than 350 stockholder lumber retailers throughout the US pool their buying resources to increase their purchasing power and get volume discounts from vendors. LMC's network of members includes about 1,200 building material dealer locations in 48 states and the Bahamas. The cooperative is the largest dealer-owned lumber building materials buying group in the US. It holds members to strict confidentiality, in part to safeguard vendor contracts. In addition to lumber and panel products, LMC also supplies its members with non-wood products, millwork, and hardware.

WBB Minerals extracts and processes clay and sand for customers worldwide. More than 6,000 buyers in a variety of industries -- primarily ceramics, construction, foundries, glass, and sports and leisure -- use material from WBB Minerals. WBB operates throughout the UK and Europe. The company was created through the merger of Watts Blake Bearne & Co. and Sibelco Minerals and Chemicals. WBB Minerals is part of the Sibelco Group.

Messer Construction Company, the company provides commercial construction services including design/build and construction management for projects in Indiana, Kentucky, Ohio, and Tennessee. It completes some $700 million in construction each year. Projects have included one of the only LEED-certified research buildings in the US (at the University of Louisville) and the Newport Aquarium in Newport, Kentucky. The company boasts a return-customer rate of about 80%. Frank Messer founded the employee-owned firm in 1932.

Hanson Pipe & Precast is a division of Hanson Building Products North America, which is part of HeidelbergCement. Not to be confused with the kind smoked by Sherlock Holmes, Hanson Pipe & Precast makes pipes of the concrete variety. The company is the top manufacturer of concrete pipes and structural precast products in North America, with more than 150 plants in the US and Canada. Products include drainage structures, bridge arches, protective linings, ceilings and foundations, road noise barriers, and precast manholes, all of which are routinely used in the construction industry. Clients include state transportation departments, public authorities, the US Army Corps of Engineers, and private entities.

Lindal Cedar Homes makes custom cedar homes and sunrooms. Customers choose from more than 3,000 floor plans and Lindal ships homebuilding packages to customers' sites. The houses have solid cedar, log, post-and-beam, or conventional framing construction and are made with western red cedar. Lindal also offers solid wood and wood clad windows. The company operates through about 150 independent dealers and sells its products worldwide. Former US President Lyndon Johnson had two Lindal homes built on his ranch near Johnson City, Texas. Sir Walter Lindal founded the company in 1945. Lindal and his family control the company, which has produced more than 50,000 homes.

HOCHTIEF is a giant in Germany and beyond. In addition to doing business throughout Europe, the construction-related services provider operates in the Americas and the Asia/Pacific region and is among the world's largest general builders. US subsidiaries Turner and Flatiron provide building and infrastructure construction. Leighton Holdings, based in Australia, provides engineering and construction services for the infrastructure and mining industries. The group also operates in European countries including the Czech Republic, Poland, Russia, and the UK. HOCHTIEF focuses all of its business around the world in six areas: Americas, Asia Pacific, Europe, real estate, services, and concessions.

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