CORE Construction fits into the core clique of contractors in the southwestern US. The company, formerly Targent General, is one of the top contractors in the region; it also has offices in Florida and Illinois. CORE offers construction management, general contracting, and design/build services for municipal, educational, health care, office, residential, retail, sports, institutional, and industrial projects. It has worked on projects as diverse as Phoenix's Chase Field Ballpark, Dodge Theatre, and Lower Buckeye Jail. German immigrant Otto Baum founded the company in 1937.

Elder Wood Preserving Co., Inc., pressure treats lumber and plywood to protect it against termites and fungi for construction purposes. Its milling facilities produce a range of wood products from dimensional lumber, timbers, boards, and plywood and plywood siding to fencing, flooring, lattice, and decking and deck accessories (spindles, balusters, hand rails, step stringers). The company has an environmental monitoring program and shares its results with scientists, universities, and government agencies. Elder Wood Preserving was founded in 1977.

Warmup plc is the UK’s leading and best selling manufacturer of electric underfloor heating products, and one of the fastest growing in the world. Established in 1994, Warmup has since been the floor heating system of choice for over 1 million installations spanning 33 countries worldwide with new countries being added very frequently.Warmup’s key operational goal is to ensure that every product it designs, manufactures and sells will give our clients and customers excellent long term product satisfaction at a competitive price.

Calvert manufactures and supplies glulams, or pre-shaped glued-laminated lumber products, for use in decorative construction work, including arches, beams, bridges, domes, trusses, s-curves, columns, and even playground equipment. It uses species such as Douglas fir, Alaska yellow cedar, redwood, western red cedar, spruce pine fir, and more. The company manufactures glulams for export to Asia, Canada, and the Middle East, and provides container loading at its plants in Vancouver and Washougal, Washington. Calvert Company was founded by Ray Calvert and others in 1947.

Ash Grove Cement is a pioneer in the US cement industry. Tracing its roots back to 1882, the company is one of the largest cement manufacturers in North America. Ash Grove Cement's products include portland and masonry cements used in roads, bridges, and buildings, as well as ready-mix concrete. The company operates nine plants with an annual capacity of some 9 million tons of cement; it also operates aggregate quarries in the US and Canada and a lime plant in Oregon. Other operations include Ash Grove Packaging, which offers packaged materials such as sealers and additives, caulks, and stucco. Lester T. Sunderland joined Ash Grove Cement in 1909; his heirs own the company.

Fairmount Minerals is responsible for a fair amount of the minerals mined in the Midwest. Operating through several divisions and subsidiaries, Fairmount Minerals, Ltd. is one of the United States' largest producers of industrial sand used for construction, metal casting, glass, landscaping, oil and gas stimulation, filtration, abrasives, and filler. Products include silica sand, resin-coated sand, lake sand, and other specialty sands, including those used in pool filters, golf course bunkers, and children's sand boxes. Fairmount Minerals has operations in seven states (primarily in the Midwest) and in Canada, Mexico, and China, 11 mining and mineral processing facilities and seven manufacturing plants.

DORMA Americas is a leading global manufacturer of premium access solutions that enable better buildings. Our full range of products and services provides safety and security as well as convenience and comfort. DORMA features a design oriented portfolio of architectural door hardware, specialty hardware for glass door and wall applications, door automation systems including Crane Revolving Doors, and operable wall systems featuring Modernfold. DORMA Americas is part of DORMA Group Worldwide, a market leader of innovative and inspiring designs and technologies for access solutions.

Cooltime Engineering is a dynamic, progressive HVAC company with an established reputation for quality, reliability and customer care. Since its formation in 1991 the company has provided a wide range of products and services to the onshore, offshore, marine and MOD industries on a global scale.Operating from a modern industrial base in Aberdeen, Cooltime design and manufacture robust, purpose built air conditioners for use in severe environmental conditions and is experienced in the use of corrosion resistant materials for longer in-service life. Fire rated/hazardous area units are regularly supplied

Hazen and Sawyer's focus on water, wastewater and solid waste solutions. The environmental engineering firm specializes in planning, designing, and constructing clean drinking water systems for public and private clients around the world. Specific areas of expertise include architectural design, aquatic sciences, biosolids management, buried infrastructure, odor control, resource economics, risk management, utility management services, and wastewater and stormwater collection. The employee-owned firm operates from some 25 offices throughout the eastern US and two international branch offices in South America.

Kimley-Horn and Associates offers engineering and land planning services for environmental, water resource, wireless communications, landscape, transportation, urban development, and aviation projects. It also specializes in residential, retail and mixed-use land planning. Founded by a pair of transportation engineers, the firm is a leading urban planning consultant and top intelligent transportation systems specialist. Kimley-Horn has worked on a variety of projects including parking and runway work at the nation's busiest airports. Incorporated in 1967 by Bob Kimley, Bill Horn, and Ed Vick, the firm is now employee-owned.

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