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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
Northern Electric Co-Operative is a Bath, SD-based company in the Energy and Utilities sector.
Custom Engineeing Solutions is a Alpharetta, GA-based company in the Energy and Utilities sector.
Arbor Springs Water Co is a Ferndale, MI-based company in the Energy and Utilities sector.
Columbia River Peoples Utility District is a Deer Island, OR-based company in the Energy and Utilities sector.