Lewis & Hockenberry produces dimension hardwood products using kiln-drying techniques. Its products, which the company sells worldwide, include logs, rough or machined lumber squares (cut to customer specifications), dowels, and wood panels. The company procures a range of hardwood timber species, including white ash, black cherry, hard and soft maple, red oak and white oak, from company-owned land and through private landowner agreements. Brothers Dale and David Lewis, nephews of cofounder Gerald Lewis, own the company. Lewis & Hockenberry was founded in 1946.

High Tech Electric provides electrical contracting services for commercial and industrial projects including office, retail, municipal, entertainment, and utility facilities. Services include new construction, voice data and video communications, security and alarm systems, lighting protection, and electrical maintenance and troubleshooting. The company has offices in Sioux City and Des Moines, Iowa, and another in Pickstown, South Dakota. President Mark Pottebaum founded High Tech Electric, which he still owns, in 2001.

HNTB knows the ABCs of A/E. The company ranks among the pack of pure designers, or firms that derive most of their revenues from architecture, engineering, or environmental design operations. It specializes in transportation infrastructure projects and government contracts. HNTB is best-known for its highway and transit system design (its portfolio includes the New Jersey Turnpike) as well as airports (Chicago's Midway) and sports arenas (Invesco Field in Denver). The company operates some 60 locations across the US. The employee-owned HNTB (its name once stood for Howard Needles Tammen & Berendoff) traces its roots to 1914.

SIG plc is a leading European supplier of specialist products to the building and construction industry. It focuses its activities into four business sectors: Insulation and Building Environments, Exteriors, Interiors and Specialist Construction Products.SIG’s operations are managed on a country-by-country basis. Within each country there is dedicated divisional management focusing on each market sector. This is critical to the success of the business, ensuring that focus is provided to both the customer requirements and the supply chain required to service the customer.

The Environmental Quality Company, known as EQ, provides hazardous- and industrial-waste treatment and disposal services. The company also offers facility management, cleaning, recycling, and environmental remediation services. Michigan-based EQ is the largest privately held environmental services business in that state. It also acts as a project manager for the End of Life Vehicle Solutions (ELVS) nationwide mercury switch program, which disposes of mercury switches (used in automobiles prior to 2003). EQ operates from more than 20 locations in the Midwestern and eastern US. The company was founded in 1957 by Michael Ferrantino.

Stella-Jones is under pressure. In addition to utility poles, the company produces pressure-treated timber and railway ties from species that include maple, oak, ash, birch, pine, hemlock, and Douglas fir. It also produces marine and foundation pilings, guardrails, and other industrial treated wood products and such consumer products as dimension lumber, fence board, and plywood. Stella-Jones expanded its capabilities in the US railway tie market in 2010 with the acquisition of Tangent Rail. James Jones & Sons Limited (forest products, UK) and Stella SpA, through the Stella Jones International S.A. joint venture, control a majority of Stella-Jones Inc.

Founded in 1940 by Gene Winchester, QUIKRETE is still owned and operated by the Winchester family. QUIKRETE is set in its ways. The company makes more than 200 dry-packaged cement and concrete products, including concrete mixes, mortar mixes, and stuccos, as well as sand and aggregates. The products are sold to do-it-yourself consumers and professional contractors. QUIKRETE also makes coatings and concrete repair products, including vinyl patching mixes and tubed crack sealers. the company operates about 95 manufacturing plants throughout North, South, and Central America; it also has a research and development center in Atlanta.

Hensel Phelps Construction builds it all, from the courthouse to the big house. The employee-owned general contractor provides a full range of development, preconstruction, and construction services for commercial, institutional, and government projects throughout the US and abroad. Its project portfolio includes prisons, airports, arenas, laboratories, government complexes, offices, and more. Major public and private clients have included the US Army Corps of Engineers, IBM, United Airlines, The University of Texas, NASA, and Whole Foods. Hensel Phelps founded the eponymous company as a homebuilder in 1937.

Wolcott Architecture Interiors provides architectural planning and interior design services through its office in Culver City, California. The company's clients have included the Elton John Foundation, Saban Entertainment, Wyle Laboratories, the Annenberg Foundation, Volkswagen Group of America, and many more. Principal John Wolcott founded the company in 1975.

Geo-Marine displays Marine-like discipline in providing engineering and environmental compliance and remediation services for a wide range of public and private sector clients, including the US government (including the Department of Defense and the Air National Guard). Services range from energy conservation analysis to archeological investigations to the development of radar-based bird-detection systems for aircraft. The firm has undertaken projects throughout North America and in the Caribbean, South America, and Asia. The company, which operates from seven offices across the US, was acquired by Applied Research Associates in 2009.

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