The Manhattan Project to this company just means its latest construction job. Manhattan Construction Company, a subsidiary of Rooney Holdings ranks among the top US contractors in general building, health care, sports, commercial offices, distribution/warehouses, government, and multi-unit residential structures. It also builds in Latin America and provides construction management and design/build services. L. H. Rooney founded Manhattan Construction Company in 1896. The Rooney family has held majority ownership through four generations.

Morrow-Meadows Corporation provides electrical contracting services, including work on data communications and power distribution systems, for commercial and industrial facilities in the western US, primarily in California and Oregon. Its divisions include Oregon-based Cherry City Electric and Morrow-Meadows Corp., Northern California. The company provides project development, design, engineering, and construction services on a range of projects, such as shopping malls, office buildings, medical centers, hotels, parking garages, theme parks, and water treatment plants.

Carmeuse Lime & Stone is the North American subsidiary of Belgium-based Carmeuse. It supplies lime and limestone products in North America, producing some 7 million tons annually of lime products and around 25 million tons of limestone aggregates and chemical limestone from more than 30 plants. It makes quicklime (calcium oxide), dolomitic lime (a mixture of calcium carbonate and magnesium carbonate), milk of lime, and hydrated lime (calcium hydroxide). Industrial customers use Carmeuse Lime & Stone's mineral products in steel production, water treatment, road construction, heavy construction, and other applications. Carmeuse Lime and Stone Inc. primarily sells its products in the eastern US and Canada.

Global construction and engineering firm BAUER Aktiengesellschaft (BAUER Group) works from the ground up. The company is involved in excavation -- civil engineering projects that require digging to form a foundation, such as the building of tunnels, bridges, wells, wastewater treatment plants, and mining facilities. BAUER Group operates in three divisions: equipment, construction, and resources. The equipment division manufactures the anchors, drilling rigs, and heavy machinery used in excavation and mining projects, while the resources division supplies the other two divisions with materials and services. BAUER Group has operations in 60 countries.

The Penrod Company imports and exports forest products for use in the hardwood plywood, flooring, and furniture industries worldwide. The company also distributes PVC products and metal door hinges and fasteners for use in the residential and commercial construction industries. Penrod operates international subsidiaries: Foresbec in Canada and the UK; Noblebois in France; Penrus in Russia; and St. Raymond Veneers in Canada. Around since 1888, Penrod has supplied materials for some iconic products such as Wurlitzer organs, Zenith television cabinets, and mahogany interiors for 1965 Cadillac and Buicks. The Penrod Company is owned by CEO Edward Heidt Jr. and President Carl Gade.

John Portman & Associates (Portman) casts a long shadow, and some of its buildings do, too. The company is the architectural arm of major private developer Portman Holdings; Portman specializes in the construction of such commercial and public projects as hotels, office buildings, mixed-use properties, and universities. Clients include Bank of China, City of Atlanta, and Daewoo. Support services include master planning, programming, and structural engineering. The company is active throughout the US and in China; it has also undertaken projects in other parts of Asia and in Europe and Africa. Portman was founded by John Portman in 1953. He and his family continue to lead the company.

Milestone Construction Services specializes in construction management, consulting, and general contracting. Founded in 1998 the company started out exclusively building facilities for the Metropolitan Washington Airport Authority in the nation's capital, but has branched out into commercial projects such as office buildings, retail space, restaurants, industrial facilities, and high-end residential development. It maintains a staff of technical experts, including professional construction managers, superintendents, architects, engineers, cost estimators, inspectors, and construction scheduling professionals. Milestone Construction Services operates throughout the US from offices in Virginia and Maryland.

R.A. Smith National does not claim to be genteel, but it does its best to be civil. The firm provides civil engineering, planning, surveying, and construction services for the public and private sectors. It participates in a variety of municipal projects including road building and the development of water treatment plants and wastewater systems. The company also designs parking lots, parks, bike paths, bridges, and noise barriers. Its customers include state and local agencies and land developers, primarily in southern Wisconsin. Owner and president Richard A. Smith founded the company in 1978.

Niedermeyer Intertrade exports wood products from North America. The company specializes in power line construction materials such as pressure treated poles, crossarms and crossbraces, pole line hardware, and glulam (glue laminated) power poles. It also provides treated and untreated lumber, Eastern red cedar logs and veneer quality logs, and other building materials.

Tecta America is one of the nation's largest commercial roofing companies. It provides roof installation, replacement, maintenance, repair, and restoration services for commercial, institutional, retail, and industrial clients. Tecta often provides roofing services for federal, state, and local agencies and has worked on the White House and Guam Air Force Base. The company's environmental solutions division offers eco-friendly roof systems, solar tracking skylights, cool roof coatings, and solar roof panels. KRG Capital Partners owns Tecta.

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