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Harris Environmental Systems is a Andover, MA-based company in the Real Estate and Construction sector.
McGuire Engineers Inc is a Chicago, IL-based company in the Real Estate and Construction sector.
Platinum Development Group Inc is a Lake Forest, IL-based company in the Real Estate and Construction sector.
Oshkosh Roofing is a Oshkosh, WI-based company in the Real Estate and Construction sector.
Okland was founded in 1918 by John Okland after he emigrated from Norway. Okland is a private company that has been successfully managed for four generations. Okland Construction has over 450 full-time employees, many of whom have been with the