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ColliSys maintains a professional affiliation with several unions and associations. We utilize their expertise for safety and professional training, uphold their apprenticeship and worker standards, and honor their business ethics programs. Our
Lakeshore Energy Services is a Charlevoix, MI-based company in the Energy and Utilities sector.
Markwest Energy Partners, L.P. is one of the leading companies in the Energy and Utilities sector.
Citizens Gas Fuel Company is a local gas distribution company located in Adrian, Michigan and serving most of Lenawee County. Our business includes the sale and distribution of natural gas, and the installation and servicing of electric and gas
Agralite Electric Cooperative is a Benson, MN-based company in the Energy and Utilities sector.