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.

Lafarge North America is at the foundation of buildings, roads, and bridges across US and Canada. One of North America's largest building materials manufacturers, the company operates around 600 concrete plants, aggregate plants, and cement plants in the US and Canada (through Lafarge Canada). Its products include asphalt, aggregates, gypsum wallboard, ready-mixed concrete, and concrete pipes and blocks. The products are used to build commercial, residential, transportation, public, and utilities projects. Lafarge North America is part of global building conglomerate Lafarge Group, based in France. It accounts for about 20% of its parent's sales.

MACTEC provides a full range of infrastructure and environmental engineering services to federal agencies, municipalities, transportation, energy, and industrial customers, including construction management and facilities operation and management. A specialist in hazardous waste cleanups, the group provides decommissioning and demolition of nuclear facilities and remediation of brownfield sites. MACTEC, which has grown dramatically through acquisitions, operates 80 locations throughout the US. Founded in 1975 as Management Analysis Company (MAC), MACTEC is majority-owned by private equity firm Nautic Partners.

Schuff International, and its family of steel fabrication companies, comes on strong. Operating through Schuff Steel and other subsidiaries, the integrated steel fabrication and erection company is one of the leading steel erectors in the US. It mainly focuses on projects that require engineering, fabrication, and construction within a short time. Its portfolio of projects includes office buildings, sports arenas, hotels and casinos, hospitals, mines, bridges, and power plants. Subsidiary Quincy Joist makes joists, trusses, and girders. The group also fabricates water pipes, water storage tanks, and other equipment. Chairman David Schuff and son Scott (president and CEO) founded Schuff International in 1976.

Clean Harbors, Inc. provides environmental, energy, and industrial services in North America. Its environmental services offer technical services and field Services. Technical services provide a range of hazardous material management and disposal services, including the collection, packaging, recycling, treatment, and disposal of hazardous and non-hazardous waste; and field Services offer various environmental cleanup services on customer sites or other locations on a scheduled or emergency response basis. The company’s energy and industrial services provide industrial services and exploration services. Industrial services offer industrial and specialty services, such as high-pressure and chemical cleaning, catalyst handling, decoking, material processing, and industrial lodging services to refineries, chemical plants, pulp and paper mills, and other industrial facilities. Exploration services provide exploration and directional boring services to the energy sector serving oil and gas exploration, production, and power generation. Clean Harbors, Inc. serves various customers, including public companies and private entities, as well as federal, state, provincial, and local governmental agencies. The company operates approximately 175 service locations in North America, including 52 active hazardous waste management properties in 36 U.S. states, 7 Canadian provinces, Mexico, and Puerto Rico, as well as international locations in Bulgaria, China, Sweden, Singapore, Thailand, and the United Kingdom. Clean Harbors, Inc. was founded in 1980 and is headquartered in Norwell, Massachusetts.

Hood Industries' products come from deep in the forest to a place in your 'hood. The company manufactures plywood, lumber, and siding from Southern Pine at mills in Mississippi and Georgia. Its McEwen Group division distributes hardwood and softwood products to the specialty millwork industry and to cabinet and furniture makers throughout the Southeast and Arizona. In New England, Hood Industries' McQuesten Company division distributes building products, including composite and vinyl products, to independent retail lumberyards. Hood Industries was established in 1983. Hit by falling prices and demand for building products, the company closed its mill in Coushatta, Louisiana, in 2008.

Obayashi Corporation’s first introduction to the U.S. market was the Surfrider Hotel project in Hawaii (1967-69). In 1972 Obayashi fully expanded its horizon to the U.S. and established Obayashi America Corporation (OAC) in Los Angeles. OAC provided a wide range of services from tenant improvement, to construction of office buildings, residential condos, banks, hotels, warehouses, and large-scale industrial projects.

Quanex Building Products Corporation provides engineered products and aluminum sheet products. Its Engineered Products segment produces window and door components for original equipment manufacturers that primarily serve the residential construction and remodeling markets. This segments products consist of insulating glass spacer/sealant systems, thin film solar panel sealants, window and patio door screens, aluminum cladding and other roll formed metal window components, thresholds and astragals, moldings, residential exterior products, engineered vinyl and composite patio doors, window profiles and custom window grilles, and trim and architectural moldings in various woods primarily for the home improvement and residential construction markets.

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

La Canada Design Group provides architectural, interior design, and facilities management services to education, technology, and corporate customers in Southern California. The medium-sized, regional architectural practice specializes in serving clients in private industry, research, and defense. Its strengths include the design of laboratories and supporting facilities with special environmental requirements such as contamination control, humidity, and temperature, vibration isolation, and electronic security. La Canada Design Group also engaged in the design of elementary schools, community colleges, and universities, as well as churches and other non-profits.

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