Titan America is a heavyweight in the US construction materials market. The company is a supplier of cement and other building materials, including concrete blocks, ready-mix concrete, and aggregates. The firm is the US arm of Greece-based Titan Cement and has operations along the East Coast and South. Titan American includes companies such as Essex Cement (cement storage and logistics), Roanoke Cement (portland and masonry cement), Separation Technologies (fly-ash processing), Tarmac America (ready-mix concrete, concrete blocks, and sand), and Titan Virginia Ready-Mix (ready-mix concrete). Titan Florida Cement and Aggregates produces cement near Miami.

TREVI-Finanziaria Industriale (Trevi) runs its business from the ground down. The company provides soil foundation engineering services for civil engineering and construction projects. Projects have included a runway underpass at JFK International Airport, work on the Leaning Tower of Pisa to reduce its tilt, and foundation work for Milan's subway. It is also involved in deep excavation support, pre-tunneling technology, hydraulic drilling rigs, and underground parking garages; its Soilmec unit makes soil engineering and drilling equipment. Chairman Davide Trevisani and his family controls the company, which he founded in 1957.

Keller Group is killer when it comes to foundation work. The international ground engineering company specializes in concrete reinforcement, ground improvement, specialty grouting, and structural repair. Keller operates in more than 30 countries worldwide, with a focus on the European, Australian, and North American markets. However, it also has a growing presence in the Middle East and Asia. Keller works on infrastructure, commercial, industrial, and residential projects. The company designs and builds most of the specialist equipment used by its business units. About 45% of Keller's revenues come from North America, where the group operates Hayward Baker, Suncoast, Anderson, Case, and McKinney Drilling.

Royal Group is a leading North American maker of PVC and vinyl building and home improvement products such as window profiles, fencing and decking; it also produces vinyl siding. Its Royal Mouldings division makes decorative moldings and millwork. Royal Pipe Systems makes plastic pipe and fittings for municipal, plumbing, and electrical construction uses. Other divisions include Royal Window & Door Profiles and Royal Building Products. Royal is a subsidiary of plastics and chemicals maker Georgia Gulf Corporation.

Argan makes sure its customers stay all juiced up. The holding company includes subsidiaries that provide services and products for the government, telecommunications, power, and personal health care industries. Its main subsidiary, Gemma Power Systems, designs and builds power plants including traditional and alternate fuel plants. Argan's Southern Maryland Cable unit provides inside premise wiring and also performs splicing and underground and aerial telecom infrastructure construction services to carriers, government entities, service providers, and electric utilities. Argan's Vitarich Laboratories arm makes and distributes private-label dietary supplements and other nutraceuticals and health care products.

Waste Recycling Group is the UK's largest waste disposal firm. It operates landfills and recycling facilities that handle more than 13 million metric tons of domestic, commercial, and industrial waste a year. The group operates more than 60 landfills and 90 recycling and transfer stations. It also operates quarries, a network of household waste recycling sites and about 20 green-waste composting sites. In 2006 the company was acquired by Fomento de Construcciones y Contratas S.A. one of Spain's largest construction groups.

MJB Wood Group makes and distributes a multitude of wood products such as laminated veneer lumber, millwork and molding, paneling, fixtures, and door, window, furniture, and cabinet components. The company operates through manufacturing and distribution facilities in about a dozen states, primarily in the southern US. MJB also has operations in Mexico, Canada, China, and South America. In addition to its wood products, the company offers custom manufacturing, import/export assistance, inventory management, and supply chain management and logistics outsourcing services. MJB traces its roots to Tumac Lumber Company.

Meruelo Enterprises (dba The Meruelo Group) takes a diverse interest in California businesses. A holding company, the Meruelo Group owns five construction and engineering firms that specialize in utility and telecom construction in the southwestern US. The minority-owned group also owns interests in a handful southern California restaurants, including pizza chain La Pizzeria Loca, an operator of 50 franchised and Meruelo-owned stores in Los Angeles, and Pacific Whey Café, an upscale cafe and bakery chain. In addition, Meruelo also actively invests in commercial and residential properties and middle-market companies through affiliates. Founded by CEO Alex Meruelo, the group traces its roots back to the 1980s.

Miron Construction Co., Inc.,the general contractor provides carpentry, design/build, and construction management services throughout the region from three offices in Wisconsin and Iowa. It also provides industrial building and maintenance services, which include constructing food processing, paper/pulp processing, and public utility facilities. Miron serves customers in the retail, environmental, healthcare, and industrial industries and religious, educational, and government institutions. It has completed projects for Anheuser-Busch, 3M, Kraft Foods, Ameritech, Weyerhaeuser, and Georgia-Pacific. Canadian immigrant Patrick Miron founded the company in 1918.

Kawneer is definitely into metal. Operating as Kawneer North America, the company manufactures architectural aluminum building products and systems for use in commercial and industrial construction. The Alcoa subsidiary's products include sliding and swing entrances, framing systems for shopping malls and storefronts, hung/sliding and ribbon/fixed windows, building panels, sun control products, and curtain wall systems for stadiums, sports facilities, schools, low-rise offices, and high-rise buildings. Kawneer operates manufacturing plants and fabricating service centers throughout the US and Canada. The company also sells products in Europe, Asia, and the Middle East.

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