Carrier shoulders the load of keeping things hot and cold. Carrier Corporation is the world's largest maker of heating, air-conditioning, and refrigeration systems for residential, commercial, industrial, and transportation needs. Through Carrier Transicold, it makes truck/trailer and container refrigeration equipment and provides transport air-conditioning systems for bus, rail, and marine customers. Carrier also provides aftermarket services and components for its products. The company is a subsidiary of diversified manufacturer United Technologies Corporation (UTC); it accounts for about 20% of UTC's sales. Carrier operates around 50 manufacturing facilities and has dealers in more than 170 countries.

GZA GeoEnvironmental Inc., provides environmental consulting and remediation, geotechnical engineering, construction management, and regulatory compliance services through a network of 25 US locations. It also offers air quality monitoring services through its Airlogics partnership, and operates a soil and rock instrumentation division. The company operates Baystate Environmental Consultants which provides civil engineering, natural resource management, environmental permitting, and environmental land planning services across the US.

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.

Goodfellow processes and distributes lumber and wood products to customers in Canada and the US. In addition, the company makes and distributes plywood, hardwood flooring, paneling, laminated veneer, coated and stained siding, and building products. Its products are mainly used in new home construction, renovations, and industrial manufacturing. Customers include home centers and lumber dealers, contractors, and industrial customers and manufacturing firms that make such products as furniture, window frames, and doors. Canada accounts for some 85% of sales. The company's Goodfellow Distribution subsidiary sells lumber and wood products in the US.

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.

Meadow Valley Corporation, the heavy construction firm specializes in highway bridges and overpasses and paving highways and airport runways. Subsidiary Meadow Valley Contractors operates as a prime contractor on public and private infrastructure projects in Arizona, Nevada, and Utah. Meadow Valley also offers construction materials testing. Clients have included the Arizona Department of Transportation, Nevada's Clark County, and retirement community builder Del Webb, a unit of PulteGroup. Texas-based investment firm Insight Equity bought Meadow Valley for some $61 million in 2009.

PCI Industries blows hot and cold. Operating through two divisions, the company distributes and manufactures a variety of products for the heating, ventilation, and air-conditioning (HVAC) industry. Its Air Product Sales division distributes commercial HVAC products to customers primarily in the southern California area, while its manufacturing division makes damper, louver, silencer, and architectural sun control products sold under five primary brands: flagship louver and damper brand Pottorff, C&S Air Products, Dynasonics, All-Lite Architectural Products, and AirManagers.

DORMA Holding hope it's their products being used. The company is a global producer and supplier of door hardware, door security systems, automatic and revolving doors, glass fittings and decorative and structural glass systems, and partitions and movable doors. The company operates five divisions (door control hardware; automatic; glass furniture and fittings; security, time, and access; and movable doors). The brand name DORMA is an acronym formed from the two surnames of the company founders, Wilhelm DArken and his brother-in-law Rudolf Mankel. It was registered with the German Patents Office in 1927. Karl-Rudolf Mankel, grandson of Rudolf, owns the company.

Ryan Consultants & Designers. The company specializes in civil works and environmental and energy projects for such government and commercial clients as the U.S. Navy, the U.S. Army Corps of Engineers, and MACTEC. It also handles energy conservation and communications projects. The women-owned and Hispanic-owned firm and has California offices in Los Angeles, Sacramento, San Diego, and San Francisco; it also has operations in Alexandria, Virginia. President and CEO Wanda M. Martinez, who named the enterprise after her nephews, owns the firm, which she launched in the 1980s.

Deffenbaugh Industries, Inc., collects, transports, and disposes of commercial and residential waste in Kansas, Iowa, Missouri, and Nebraska. It also provides industrial waste services, quarrying services, the disposal of construction waste, and commercial and residential recycling. Deffenbaugh Industries' more than 700-acre Johnson County Landfill is the largest disposal facility in Kansas. The company's Johnny on the Spot division rents portable toilets.

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