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.

sland Architects provides design services that focus on custom residential homes and estates in and around San Francisco and La Jolla, California. The firm partners with established professional consultants to create highly personalized homes mainly in Mediterranean, Spanish, or contemorary styles. Island Architects also offers alteration and addition design services (about 30% of its projects). The firm was founded in 1992.

Environmental consulting and management firm Holguin, Fahan & Associates offers services such as assessment, characterization, remediation, and reclamation of contaminated sites. Staff members include engineers, geologists, hydrogeologists, and planners. The firm operates primarily in California and Arizona; it also does business in Nevada, New Mexico, and Texas. Holguin, Fahan & Associates was founded in 1982.

Toll Brothers builds luxury homes in the US, targeting move-up, second-home, and retired buyers. Its single-family detached houses and apartments range in price from about $230,000 to some $2 million. The company also develops communities for active adults and operates country club communities. Subsidiaries offer related services and products including insurance coverage, title and mortgage services, and landscaping. Like its peers, Toll Brothers closed on fewer homes with the housing downturn and financial crisis: It went from delivering nearly 8,600 homes in fiscal 2006 to fewer than 3,000 in fiscal 2009.

In 1949 J. M. "Bill" Harper founded Harper Construction, which eventually expanded operations to become Harper Industries. If Harper Industries can't help you get it built, not many can. The company operates a group of subsidiaries that provide a full range of construction services and products including design-build, project management, facilities maintenance, and construction materials and equipment. It serves commercial, power, and government clients for projects ranging from manufacturing plants and office buildings to schools and highways and bridges.

Manrochem can take care of that Honey-do list. The company is an engineering service provider for chemical, food, pharmaceutical, and other industries with offices in the UK and India. Its staff of engineers-for-hire comes versed in heat exchanger design, plant design, and pollution control. It also runs cryogenic technology applications with US partners Arencibia and Kelvin Cryo Systems. In order to concentrate on its core chemical engineering business, Manrochem has formed Manrotech to provide contract research, intellectual property management, and other services. Manrochem was established in 1990 by managing director Anil Goel.

ForeRunner runs on gas of a different sort. The company provides engineering, design, construction, and management services for oil and gas pipelines, storage and processing facilities, and related infrastructure projects. It also offers consulting services, feasibilty studies, and project repairs and renovations. Operating from offices in Colorado, Pennsylvania, and Texas, ForeRunner has completed more than 1,700 projects throughout the US. The firm has served clients including BP, El Paso Corporation, Williams Companies, and Platte River Power Authority. ForeRunner was established in 1996 and acquired by URS in 2009.

The Kleinfelder Group isn't afraid to get its hands dirty. Since its start as a materials testing lab in 1961, the company has expanded to become one of the largest engineering consulting and design groups in the US. Kleinfelder's operating subsidiaries offer soils and materials testing, geotechnical engineering, construction management, and environmental services. With about 50 domestic offices and locations in Australia and Guam, the group targets the energy, transportation, water, commercial/industrial, government, and education markets; projects run the gamut from building underground parking garages to establishing wind farms. Jim Kleinfelder, who retired in 1993, founded the employee-owned company.

Sargent & Lundy is to deliver engineering, construction management, and consulting services to the global power industry. The company also offers project siting, construction start-up, operations and maintenance services, system upgrades, and decommissioning for fossil-fueled, nuclear power, and renewable energy plants. Sargent & Lundy has designed nearly 900 power plants in the Americas, Asia, and the Europe, Middle East, and Africa (EMEA) region. It also engineers transmission line and substation projects for power delivery. Clients include electric utilities, oil and gas companies, equipment manufacturers, and financial institutions.

1-800-GOT-JUNK? For a fee this junk removal service will haul away any nonhazardous materials that two people can lift. It won't pick up asbestos, chemicals, oils, oil drums, oil tanks, paints, and solvents. The company picks up from homes, restaurants, and other businesses and hauls the loads to local area transfer stations or recycling centers; up to 60% of its pickups are recycled or donated to local charities. 1-800-GOT-JUNK? has more than 300 local franchises, mainly in the US and Canada (but it also operates in Australia). CEO Brian Scudamore owns the company.

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