Howard Stanley Hart was a turn-of-the-century entrepreneur, inventor, industrialist, and builder. In 1892, in partnership with Norman P. Cooley, he established the Hart & Cooley Manufacturing Company in Chicago, the first cold-rolled steel plant west of Pittsburgh. One of Hart's many inventions of the next few years was a steel heating register that proved superior to traditional heavy cast-iron models.

M+W U.S. knows the A+B+Cs of specialized architecture and engineering services. A US subsidiary of Germany's M+W Group, the company provides engineering, architecture and construction, and facilities engineering. The US arm focuses on technology-driven facilities such as clean rooms and semiconductor production plants. The firm's clients include governments, universities, and electronics and industrial companies. Until 2006, parent company (formerly M+W Zander) was a subsidiary of German technology group Jenoptik; that company sold M+W Zander to UK-based Springwater Capital, which in turn sold it to European investor VICTORY Industriebeteiligung in 2007.

WCA Waste Corporation, through its subsidiaries, provides non-hazardous solid waste collection, transfer, processing, and disposal services in the United States. The company offers commercial collection services, such as the supply of waste containers of various types and sizes. It also provides various residential solid waste collection services, including contracts with municipalities and collection of waste from individual households or homeowners’ on subscription basis. In addition, the company rents waste containers and provides collection services to construction, demolition, and industrial sites. As of December 31, 2009, it served approximately 346,000 commercial, industrial, and residential collection customers; and 5,000 landfill and transfer station customers in Alabama, Arkansas, Colorado, Florida, Kansas, Massachusetts, Missouri, New Mexico, North Carolina, Ohio, Oklahoma, South Carolina, Tennessee, and Texas. The company was founded in 2000 and is based in Houston, Texas.

JJJ Floor Covering provides a variety of commercial floor covering products and installation services, primarily for customers in California. The company's products include commercial carpets, vinyl tile, stone, wood, and other types of flooring. JJJ operates from offices in Northern and Southern California. Clients include educational facilities, hospitals, and offices. The company also works on tenant improvement projects. Minority-owned JJJ Floor Covering was founded in 1964. It is part of Starnet Worldwide -- a partnership of 170 individually-owned commercial flooring companies in North America and the UK.

The engineering and construction conglomerate (also known as the Ledcor Group of Companies) holds a network of firms focused on large-scale projects in Canada and the US. The group operates through divisions that specialize in commercial building, heavy civil, industrial, contract mining, and pipeline construction. Ledcor builds condos, office buildings, airports, highways, and industrial complexes; provides mining excavation; and offers network equipment installation, network site maintenance, and fiber-optic cable maintenance. Subsidiary Ledcor Properties invests in real estate. Employee-owned Ledcor was founded in 1947 by William Lede, the father of CEO Dave Lede.

Tembec is the little mill that could -- and did. Rescued by workers from a shuttered mill in 1973, the forest products company today maintains significant operations in the US, Canada, and France. Through about 30 manufacturing facilities it produces pulp, paper, paperboard, lumber, and chemicals from the by-products of its pulping process; these products are marketed worldwide. Tembec's pulp unit, the company's largest group, accounts for more than half of sales. Its wood products unit sells SPF (spruce-pine-fir) lumber and hardwood flooring products primarily in North America. Tembec also manages forest land in four Canadian provinces. Outside of North America, it has sales offices in Asia.

Rocky Top Building Products produces pressure-treated lumber and engineered wood for residential, commercial, agricultural, industrial, marine, and recreational applications. The company's products include dimension lumber, decking boards, railing, beams, lattice, and related fastening systems. The company operates facilities in Maryland, Pennsylvania, and Virginia, and sells its products to professional builders and do-it-yourselfers through dealers in about a dozen northeastern and mid-Atlantic states. A wholly owned subsidiary of the Franklin Group, Rocky Top was established in 1977.

Nadel Architects has plans for the US (and Asia, too). The company, one of the largest architect firms in the US, offers architectural design, planning, and interior design services throughout the US and in Asia. Nadel Architects provides services for commercial, public-sector, residential, and institutional projects. With the burgeoning economy in China acting as a catalyst, Nadel Architects has completed projects in that country such as the Beijing Theater and Retail Complex and Dalian's Bank of China tower.. The company operates from offices in Costa Mesa, Los Angeles, Ontario, Sacramento, and San Diego, California, and in Las Vegas and Phoenix. Chairman Herb Nadel founded the company in 1973.

Bennett Lumber Products annually produces about 150 million board ft. of lumber from such species as Douglas fir, white fir, inland red cedar, Idaho white pine, Engelmann spruce, lodgepole pine, and ponderosa pine. The company ships its products by truck and rail, and distributes them throughout the US and Canada. Guy Bennett founded the enterprise in 1939, sawing scrap lumber to build fruit crates for area orchards. It encompasses the operations of the former Guy Bennett Lumber Company in Clarkston, Washington and Bennett Lumber Products in Princeton, Idaho, which merged in 2003.

The company provides metrology, milling, and finishing services for a variety of industrial parts in need of precision work. The company also offers programming services for computer assisted design/computer assisted manufacturing (CAD/CAM) and milling software systems. Customers have included Agilent Technologies and Teledyne Electronic Technologies. Master Precision Machining was founded in 1969 by president Richard Rossi, who is the majority shareholder.

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