This page is a listing of Great Lakes and St. Lawrence River tugboat companies that are no longer operating. This list is not meant to be all-inclusive, and is a work-in-progress. On each company’s page will be a listing of tugs that operated for that company.
Bultema Dredge & Dock Co., Muskegon, MI
Canonie Transportation Co., Muskegon, MI
Lake Michigan Contractors, Holland, MI