MARCOR Remediation provides industrial, environmental, and construction site remediation. Its services include asbestos abatement, wastewater treatment, emergency spill response, disaster recovery, and storage tank management. It also provides decommissioning and demolition, duct cleaning services, and geotechnical and environmental drilling and sampling. Projects have ranged from mold remediation in a California hotel to clean-up operations in hurricane-battered Florida and Louisiana, to the decommissioning of contaminated gun ranges for the Pennsylvania Army National Guard. In 2009 the company became a subsidiary of demolition and remediation firm Nuprecon/CST.

U.S. Concrete produces ready-mixed concrete, precast concrete, and other related materials and services used for commercial, residential, and infrastructure construction projects. U.S. Concrete has a fleet of 1,000 mixer trucks and about 450 ready-mixed concrete, concrete block, and aggregate plants. The company produces more than 6 million cubic yards of ready-mix and 3 million tons of aggregate each year, with ready-mixed concrete accounting for about 90% of the company's sales. It concentrates on serving major markets, including California, Michigan, New Jersey, New York, and Texas. U.S. Concrete filed for Chapter 11 bankruptcy protection in 2010.

Chas Roberts isn't just the name on the door. Chas and Alice Roberts founded Chas Roberts Air Conditioning in 1942. The business has been family owned and operated since day one.Prior to founding the business, Chas worked as a serviceman for the local utility. In the early years, sales consisted of home appliances, coolers, furnaces, air conditioners and service. In the 50s and 60s, the company grew doing retrofits of houses with coolers to air conditioners, new installs in custom and tract homes and light commercial air conditioning. Chas Robert's son, Chuck, took over managing the company in the 60s and provided the vision for future growth.

Perkins Eastman Architects stands tall as one of New York City's top architecture firms. It offers urban, interior, and sustainable design and planning services not only in the Big Apple, but other parts of the US and internationally in Asia, Europe, the Middle East, and South America. Perkins Eastman specializes in buildings and facilities that serve the cultural, education, government, health care, technology, hospitality, office, retail, and senior living sectors. Notable projects include the TKTS Booth -- one of the world's most complex all-glass structures -- in New York's Times Square. The privately held firm was co-founded in 1981 by chairman Bradford Perkins and principal Mary-Jean Eastman.

Jacobsen Construction Company helps to build a strong foundation. The company performs design/build services and general contracting for medical and medical research, commercial, hospitality, institutional, residential, manufacturing, and industrial construction projects mainly in the western US and Mexico. Jacobsen Construction performs earthwork, concrete work, structural steel and metals erection, carpentry, and the setting of industrial equipment. The company, which is employee-owned, makes most of its revenue from negotiated work and from work awarded in negotiated selection processes. Soren Jacobsen founded the enterprise in Salt Lake City in 1922.

Founded in 1914, Boston Sand & Gravel has supplied concrete for major projects such as Boston's Central Artery/Tunnel, known as The Big Dig. Boston Sand & Gravel's shovel is full of aggregates and concrete. The company operates concrete and ready-mix cement plants in eastern Massachusetts; it also has a sand and gravel facility in New Hampshire. The construction materials business operates a fleet of more than 250 mixer trucks that deliver concrete to its customers (including home builders, developers, and contractors in the New England region) and it operates a short-line railroad that transports aggregate products from the New Hampshire facility to the greater Boston area.

Tarmac operates in Europe, Asia, and the Middle East. Parent company Anglo American has been selling Tarmac off in pieces to focus on core operations. All roads may lead to Rome, but in the UK, Tarmac leads to all paved roads. The company produces aggregates (crushed rock, sand, and gravel) used in construction, asphalt for roads, and cement, concrete, and mortar. It also provides general contracting services for a range of projects including civil engineering, highway maintenance, and traffic management. Additional products include concrete blocks (Topblock), sports surfaces (Topsport), HVAC systems (TermoDeck), safety platforms (SafetyDeck), and prepackaged aggregates for the retail market (Trupak).

Williams Scotsman, Inc. develops, leases, sells, and manages mobile offices, storage containers, and related structures for the public and commercial markets in North America. Customers include government agencies, schools, and hospitals. The company maintains a fleet of some 100,000 offices, portable classrooms, and storage units, which it leases through a network of about 80 branch locations. Formed through the 1990 merger of Williams Mobile Offices and Scotsman Manufacturing, Williams Scotsman is part of Algeco Scotsman (along with European counterparts Algeco and Elliott). It was acquired by UK fund manager TDR Capital in 2007.

GIANT CEMENT HOLDING, INC. (GCHI), headquartered in Summerville, South Carolina, produces cement, concrete and aggregate for residential, commercial, and infrastructure projects. It is also one of the largest users of waste-derived fuels in the United States. Its subsidiaries include Giant Cement Company, Inc., Keystone Cement Company, Giant Resource Recovery, Inc. (GRR!), and Dragon Products Company, LLC. These companies manufacture and sell Portland Cement and masonry products throughout the eastern United States. GCHI is the fourth largest producer of cement on the east coast. Giant Cement Company, established in Egypt, Pennsylvania in 1883, commenced production at its Harleyville, South Carolina plant in 1948 and moved its corporate Headquarters to South Carolina in 1970. In 1984, Keystone Cement Company of Bath, Pennsylvania, became part of the Giant Group. In 2006, the parent company of Dragon Products Company, LLC, and Coastal Cement Corporation was merged into GCHI.Giant Resource Recovery, established in 1987, primarily recycles industrial waste products as a fuel source for the cement kilns. Cement kiln recycling provides an environmentally safe method of disposing of unwanted wastes, realizes significant energy conservation, preserves natural resources, and reduces the amount of coal needed to manufacture cement. Cementos Portland Valderrivas, S.A., based in Madrid, Spain, purchased GCHI and all of its subsidiaries in 1999. Cementos Portland Valderrivas is the largest cement company in Spain and operates cement plants worldwide.

North American Technologies Group (NATK) made ties that bind. Its TieTek Technologies subsidiary produced composite railroad crossties made from 75% recycled materials such as plastics and rubber from old tires. It has sold its products to various transportation agencies and railway companies in the US, Australia, Asia, South America, and India. However, due to the recession, the company closed its plants and ceased production of its ties in 2009. TieTek is the worldwide leader in developing and manufacturing composite ties, an innovative product for railroad track construction, maintenance and operation. There management consists of experienced business people, railroad executives, and materials scientists who are committed to bringing the highest quality, most reliable, and cost effective product to there customers.

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