Aggregate Industries Management, which does business as Aggregate Industries US, is a rock-solid supplier of building materials and contracting services. The company produces aggregate products, such as crushed stone, sand and gravel, asphalt, ready-mix concrete, and recycled materials. It also acts as an asphalt paving contractor. The firm's products and services are used in public infrastructure and commercial and residential development projects, from highways and bridges to buildings. A subsidiary of UK-based Aggregate Industries and a part of Holcim, Aggregate Industries US operates half a dozen regional businesses throughout the country, including Hardaway Concrete and Meyer Material.

Perkins + Will (or modernly known as Perkins+Will) adds to skylines from Atlanta to Shanghai. The architectural firm designs edifices for corporate and civic clients, as well as schools, universities, and hospitals. Its projects run the gamut from office buildings and high-rise condominiums to hotels and convention centers to laboratories and elementary schools. The company also offers interior design, branding, planning, and urban design. Clients of the firm have included Chicago O'Hare, Duke University, Pfizer, and Time Warner. Perkins+Will operates from about 20 offices in North America, Europe, and Asia. Lawrence Perkins and Philip Will Jr. founded the firm in 1935.

Stuart Dean Company provides restoration, refinishing, conservation, and maintenance services for architectural metal, stone, and woodwork in residential, institutional, and commercial buildings. Projects include curtain wall restorations, bronze statue preservation, church pew refinishing, and marble restorations. The company serves a variety of customers including homeowners, corporations, and building industry professionals such as property managers and maintenance engineers. Its diverse group of clients have included AT&T, Hyatt Hotels and Resorts, The Kennedy Center, and Stanford University. Stuart Dean has 26 regional offices in the US and Canada. The company was founded in 1932.

Pella Corporation was founded in 1925 as the Rolscreen Company. Initially, the company was most widely known for its “disappearing” Rolscreen® window screen. Updated in its design and still popular today, the patented Rolscreen rolls out of sight when you don't need it. Pella patio doors and storm doors also offer our Rolscreen technology. In 1992, the company changed its name to Pella Corporation, to better reflect there entire product offering. Today, the Pella® family of brands offers a full range of quality residential and commercial products for new construction, remodeling and replacement projects. We are particularly proud that we can offer our customers windows and doors to meet virtually any style or budget.

Hopewell Highway Infrastructure (HHI) develops and operates roads, tunnels, bridges, and related infrastructure projects in the Guangdong Province in southern China. HHI has interests in two toll road projects in the Pearl River Delta region bordering Hong Kong, including the Guangzhou-Shenzhen Superhighway, which links the capital of the province of Guangdong to the Hong Kong border. It plans to make a bid for a stake in the Hong Kong-Zhuhai-Macao Bridge project, the giant bridge would link Hong Kong to Macao and mainland China. HHI is the highway unit of Hopewell Holdings. Hong Kong tycoon Gordon Wu holds a majority interest in the company.

Sargent Corporation provides civil engineering and construction services for customers operating throughout the northeastern US. The company's projects include construction of airports, landfills, wind power sites, malls, sports fields, highways, transfer stations, and hatcheries. Projects have included an airplane hanger for the Air National Guard, upgrading a highway bridge interchange, and converting a limestone rock quarry into a solid waste landfill. Sargent Corporation was formed in 2005 when Sargent & Sargent acquired H.E. Sargent from Fru-Con Construction. The acquisition returned ownership of the company founded by Herb Sargent in 1926 to the Sargent family.

Orleans Homebuilders (OHB) prefers the City of Brotherly Love to The Big Easy. OHB builds communities of single-family homes, condos, and townhomes for first-time and move-up buyers, luxury homebuyers, empty nesters, and active adult homebuyers. Prices range from $165,000 to more than $2.3 million, depending on the region. OHB operates mainly in the Philadelphia metro area, New Jersey, New York, the Carolinas, and Virginia. It is also active in Orlando and Chicago. OHB also offers mortgage services, which approximately three-fourths of its buyers utilize. Hit hard by the US housing downturn, OHB filed for Chapter 11 protection in early 2010, seeking to restructure its debts.

Huitt-Zollars makes its dollars as a design firm. The company provides a wide spectrum of services including civil, traffic, mechanical, electrical, structural, and environmental engineering; construction and program management; surveying; landscape architecture; and architectural planning. Clients include government agencies, institutions, private corporations, and industrial firms. Huitt-Zollars has worked on a variety of projects such as schools, airports, highways, and urban development. The firm operates throughout the US, with 15 offices in Arizona, California, Colorado, New Mexico, Texas, and Washington. E. Larry Huitt and Robert Zollars founded the company in 1975.

From testing for toxic mold to cleaning up oil spills, GeoTek Engineering & Testing Services offers an array of environmental engineering services. Services include site assessment, environmental consulting, and laboratory testing. The South Dakota company, which operates primarily in the midwestern US, is not affiliated with Massachusetts-based GeoTek Engineering, Inc.

A.C. Preou was founded in 1961 by company namesake and managing director A.C. Preou. A.C. Preou will have you running hot and cold. The UK company is a contractor that specializes in building and refurbishing heating and air conditioning systems in the London and Essex areas. It fixes plumbing, installs hot and cold water systems, fits pipes, and removes asbestos in boiler rooms. It primarily performs work in hospitals, offices, schools, retirement homes, and local government buildings. Clients include Acton College in West London and Basildon and Thurrock University Hospitals in Essex.

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