Hanson Aggregates UK, a subsidiary of Hanson, itself a subsidiary of German aggregate leader HeidelbergCement, knows this well. As one of the UK's largest construction materials companies, Hanson Aggregates UK produces crushed rock, sand and gravel, dimension stone, ready-mix concrete, and mortar. The operating company's widespread UK facilities include more than 250 concrete plants, 100 quarries, 20 wharves, 10 recycling plants, and 10 distribution depots.

The Adams Manufacturing Company cares for the air. The company makes oil and gas furnaces for residential, commercial, and light industrial applications in the US and Canada; the furnaces, can also be adapted for use as air conditioners. The company also manufactures humidifiers, air cleaners, oil and gas burners, and related components such as it also sells component parts such as pilot ignition systems, hygrometers, and draft control mechanisms. Sidney Schonberger founded The Adams Manufacturing Company in 1945.

Cementos Portland Valderrivas is 67%-owned by construction firm Fomento de Construcciones y Contratas. Cementos Portland Valderrivas has built a business on a strong foundation. The company, founded in 1903, produces some 18 million tons of cement and clinker (an intermediate product used to make portland cement) annually at 15 plants in Spain, the US, South America, Africa, and Europe. Its acquisition of 64% of Corporacion Uniland cemented its position as the #1 cement producer in Spain. In the eastern US, the company makes and distributes cement, gravel, and sand through Giant Cement Holding. It also produces concrete, operates lime factories, and has transportation companies.

Marnell Corrao Associates, Inc.,the construction and architecture firm's resume includes such hot spots as The Mirage, Bellagio, Excalibur, Caesar's Palace, and its latest -- the Wynn Las Vegas, a $2.4 billion resort, and the $1 billion M Resort, Spa, and Casino. It also handles smaller renovation and remodeling projects for its clients, mainly in Nevada, California, and New Jersey. Founded in 1974 by Lud Corrao (retired in 1982) and current owner Anthony Marnell II, the company provides complete design/build and consulting services. It also provides land acquisition and development services from master planning through construction.

Kemco Systems, Inc., the industry leader since 1969, custom designs systems that are built to the highest standards of excellence. Whatever your water handling requirements, your savings begin with low installation costs and continue with significantly lower operating costs. Kemco Systems offers outstanding quality, exceptional reliability, and top value for your energy dollar.

BE&K Building Group is a top US contractor. The company, which is part of Houston-based construction giant KBR, provides design-build services, construction management, general contracting, and other construction services. It specializes in mixed-use projects, educational facilities, entertainment venues, food and beverage plants, hospitals, hotels, laboratories, and manufacturing facilities. BE&K Building Group operates mostly in the Southeast, but also works on projects in other parts of the country. KBR bought BE&K for some $550 million in 2008.

Cavico is a US headquartered company that conducts its construction business in Vietnam. Wholly-owned subsidiary Cavico Vietnam and its numerous operating subsidiaries make the company the largest non-state-owned heavy civil contractor in the country. It primarily serves public sector clients on large infrastructure projects, such as bridges, dams, mines, roads, tunnels, urban buildings, and water power facilities. Additionally, the company invests in hydropower electric and cement production plants, mining operations, and urban real estate developments in Laos and Vietnam. Cavico has offices throughout Vietnam, as well as a satellite location in Australia.

Psomas, the engineering firm offers construction management, land surveying, water resource planning, environmental, and civil engineering services mainly to the water, transportation, and land development markets in the Western US. The company has both public and private sector clients. Among the projects it has had a hand in developing are the Los Angeles International Airport, Port of Los Angeles, University of California, Los Angeles, and Walt Disney Concert Hall. Psomas has offices throughout California, as well as in Arizona an Utah. The family-owned firm was founded in 1946 by George Psomas.

HSU Development is one company that "does" get it. The full-service construction company (which serves private- and government-sector clients) claims projects with these venerable institutions in its portfolio. HSU Development's services include pre-construction, design/build, construction management, general contracting, mission-critical assessments, historical renovations, residential building, and land development. The company works primarily in and around Washington, D.C. CEO Walter Hsu founded the firm in 1994.

PCI Industries blows hot and cold. Operating through two divisions, the company distributes and manufactures a variety of products for the heating, ventilation, and air-conditioning (HVAC) industry. Its Air Product Sales division distributes commercial HVAC products to customers primarily in the southern California area, while its manufacturing division makes damper, louver, silencer, and architectural sun control products sold under five primary brands: flagship louver and damper brand Pottorff, C&S Air Products, Dynasonics, All-Lite Architectural Products, and AirManagers.

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