McKinstry, one of the top specialty contractors in the Pacific Northwest, provides mechanical, electrical, and plumbing services in Colorado, Idaho, Minnesota, Oregon, and Washington. It designs and maintains complete building systems such as heating, ventilation, and air conditioning (HVAC), fire protection, piping, parking, and solar panel and rain collection. The company also provides design/build, facilities management, project management, and maintenance services. McKinstry works on new buildings or retrofits existing facilities. It targets the commercial, high-tech, health care, hospitality, and industrial markets. The company was in 1960 by George Allen and Merrill McKinstry.

LondonWaste Ltd provides waste collection and disposal services for seven northern London boroughs and offers commercial and clinical waste management services to public and private businesses and institutions in the area. LondonWaste processes more than 1 million tons of solid waste per year, but the company doesn't just dump the trash: It recycles glass, metals, wood and other materials, then burns whatever else it can to produce energy via its waste-to-energy power plant. LondonWaste is jointly owned by the North London Waste Authority (NLWA) and SITA UK (part of SUEZ Environnement.)

United CoolAir is dedicated to the design and fabrication of highly flexible commercial air conditioning systems. These standard and custom units include a variety of styles and capabilities.Product series are available for ducted above ceiling applications, ceiling grid units, floor mounted models, ductless types and portable systems. The units range from 1 to 72 tons of cooling or up to 150 kW of heat only products.

Clyde Companies operates through its subsidiaries, including heavy civil construction firm W. W. Clyde & Co., which builds highways, bridges, power plants, dams, and other projects through the Intermountain West. Other subsidiaries include aggregate producers Geneva Rock Products and Gorge Rock; construction products manufacturer Sunroc; and Beehive Insurance, which provides insurance products geared to the construction industry and other clients. Family-owned Clyde Companies traces its roots to 1927, when a construction company was established by Wilford W. Clyde, the grandfather of current company president and CEO Wilford Clyde II.

Kinetic Systems stays in motion. The company (known as Kinetics) provides process and mechanical systems primarily to the microelectronics, solar energy, and biopharmaceutical industries in the Americas, Asia, and Europe. It provides installation of gas, chemical, water, and utility systems, as well as fabricated steel pipe, HVAC, and plumbing systems. While most of its work is done designing and constructing laboratories and manufacturing facilities, Kinetics also installs systems for data centers, condominiums, schools, and water treatment plants. Kinetics has served clients including AMD, Merck, and Pepsi. Founded in 1973, the firm is controlled by Ares Management.

Integrated Electrical Services (IES) has a hand in all three. The company installs and maintains electrical and communications systems for residential, commercial, and industrial customers. Work on commercial buildings and homes includes custom design, testing, and maintenance on low-voltage systems such as lighting, fire alarm, audio/video, and Internet cabling. On the industrial side, IES performs high- and medium-voltage systems installation and construction on power stations, oil and gas pipelines, and processing plants. The company has a network of some 70 locations serving the continental US.

Acoustics Incorporated. The contractor specializes in interior installation of ceilings, floors, walls, drywall, insulation, and monitoring systems at industrial, commercial, and institutional facilities. It also has expertise in interior installation for sterile cleanroom environments for the automotive, biotech, chemical, food processing, and microelectronics industries. Its INSCAPE product suite is a line of office furniture that customers can move, dismantle, and reconfigure. Acoustics, which began operating in 1946, serves the Research Triangle and other areas of the Carolinas and southern Virginia.

Gemma Power Systems (GPS) is a top designer and builder of power generation facilities in the New England region of the US. The company, a subsidiary of Argan, provides a full range of services to the energy market, from development, consulting, engineering, and procurement to construction, start-up, operation, and maintenance. Gemma Power Systems has completed more than 70 projects including district heating and cooling systems, boiler plant construction and renovations, utility maintenance, combined-cycle and cogeneration facilities, emergency peaking plants, and alternative fuel-powered facilities (wood-fired power plants, wind plants, and more). Argan bought GPS in 2006 for more than $33 million.

Ivey Mechanical Company gets an "A" for its slate of mechanical services. The specialty contractor designs, fabricates, and manufactures sheet metal work, as well as air conditioning/heating, and medical gas and plumbing/piping systems. It also provides system repairs, maintenance, and emergency services. With projects covering 30 states, Ivey Mechanical drives preconstruction and construction, and prefabrication work for commercial and industrial facilities, correctional, health care, and government contracts. The company operates through service offices dotting the Southeast US. It is owned by CEO Larry Terrell along with members of Ivey Mechanical's management team.

Boustead Singapore Limited, the company offers many options in the engineering services and geospatial technology arenas. Founded as a shipping and trading company in 1828, Boustead Limited has grown into a holding company for businesses in the engineering services industry serving clients in Asia, Africa, Europe and the Americas. It provides engineering consulting and design services through its four subsidiaries, offering expertise in energy, water and wastewater, and industrial real estate. Projects include oil and gas infrastructure, water treatment plants, and other industrial plants. The company also distributes ESRI's geographic information technology in Australia and Asia.

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