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Harder Mechanical Contractors started in commercial plumbing and evolved into a mechanical contractor when asked to help build the first hydroelectric dams in the Pacific Northwest. The privately-owned construction firm grew as new industries came into the region due to its abundant water and surplus electrical power. Its services consists of pipe fabrication and installation; equipment installation; commercial heating, ventilation and air conditioning; plumbing; instrumentation; and design/build. Harder Mechanical works with the power generation, pulp and paper, steel, aluminum, food and beverage and semiconductor-related companies. James M. Harder Sr. founded Harder Mechanical in 1938. Harder Mechanical Contractors is located in Portland, Ore., and operates a subsidiary, Universal Structural, in Vancouver, Wash.

Kiewit is a prominent engineering and construction organization based in Clackamas, Oregon, with a strong commitment to safety, quality, and environmental stewardship ingrained in its core values. Specializing in a wide range of markets including building, industrial, marine, mining, oil, gas, chemical, power, transportation, and water, Kiewit offers innovative solutions and project delivery services across North America. With a rich history dating back to 1884, Kiewit has grown to become one of the largest and most respected firms in the industry, boasting a team of over 31,100 craft and staff employees. Known for its industry-leading expertise and a diverse portfolio of projects ranging from commercial buildings to marine construction, Kiewit continues to make a significant impact through its work and commitment to excellence. Generated from the website

Adair Homes is one of the leading companies that has been building a range of homes in the Pacific Northwest since 1969. It provides financial assistance through its division, Adair Financial Services. The company also offers debt counseling services. Adair Homes has built more than 12,000 homes. It supports the Sparrow Club Organization and collects food and donations for Northwest Food Banks. In addition, the company supports after-school activities. Adair Homes is accredited by the Better Business Bureau. It provides services to Prudential Real Estate. The company offers construction and debt consolidation loans. Adair Homes also provides floor plans and coloring options.