Weeks Marine doesn't drag its feet when it comes to dredging. The company is one of the largest providers of dredging services in the Gulf of Mexico, where a majority of all US dredging occurs. (Dredging involves the moving of sand and sediment to maintain, and often deepen, navigation channels at shipping ports.) The family-owned company also performs construction and demolition of bridges, piers, jetties, pipelines, and offshore platforms throughout North and South America. It is also one of the largest stevedoring (cargo handling) companies on the US East Coast. Weeks Marine was originally founded in 1919 as the Weeks Stevedoring Company.

AUREA is Europe's #1 recycler of motor oil, polyvinyl chloride (PVC) plastics, and used rubber wheels and tires. Eco Huile, from its plant in northern France, recycles 45% of the country's waste oil. Belgian subsidiary Rulo NV is part of Europe's plan to recycle 200,000 tons of PVC by 2010, while ROLL GOM makes wheels and tires from recycled rubber, processing 50 tons of rubber every day. Through direct and indirect holdings, CEO Joel Picard controls half of the company. AUREA has been listed on the Paris Stock Exchange since the 19th century.

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.

Theodor Nagel deals in timber trading and operates sawmills. The company provides about 120 different kinds of timber, including five different species of ebony and 15 rosewood species, for manufacturing musical instruments such as pianos and stringed and percussion instruments, as well as for knife handles, ships decks, and crafts. The company, founded in Hamburg in 1837, is owned by the Krauth family, which has overseen operations for six generations.

Panther Technologies is on the prowl in the Northeastern US, providing its industrial clients with heavy-duty cleaning and maintenance services, such as soil and groundwater cleanup, pneumatic conveyance, liquid vacuuming, high-pressure water washing, and sludge pumping. The environmental services firm also provides aboveground storage tank and underground storage tank cleanings and removals, plant decontamination and demolition, and other facility support services. Panther Technologies has completed more than 1,000 major projects since its founding in 2000.

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.

Keltbray is driving its business right into the ground. The company and its various units offer specialized construction and civil engineering services such as demolition (including explosive and high-rise projects), pilings, excavation, groundwork, and drainage. Business unit Keltbray AWS performs soil remediation services, while Wentworth House Partnership specializes in structural engineering of concrete and steel facades. In 2010 Keltbray acquired Aspire Rail Consultants -- key in the development of its own rail unit. Formed in 1976, the Keltbray has performed work on such high-profile projects as the London Underground, the Royal Opera House, and Windsor Castle.

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.

C.W. Matthews Contracting during Sherman's march to the sea. The company provides highway and bridge construction and commercial site work. It also provides asphalt paving and is one of the largest plant-mixed asphalt producers in the Southeast. The group operates about 30 asphalt plants in Georgia and manufactures nearly 6 million tons of hot mix each year. Its projects include the transformation of an old steel plant into Atlantic Station -- a 138-acre mixed-use development in Atlanta. In 1946 C.W. Matthews and several partners founded Marietta Construction Company, which became C.W. Matthews Contracting Company in 1954; today it is led by C.W.'s son, CEO Robert Matthews.

SIG plc is a leading European supplier of specialist products to the building and construction industry. It focuses its activities into four business sectors: Insulation and Building Environments, Exteriors, Interiors and Specialist Construction Products.SIG’s operations are managed on a country-by-country basis. Within each country there is dedicated divisional management focusing on each market sector. This is critical to the success of the business, ensuring that focus is provided to both the customer requirements and the supply chain required to service the customer.

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