Named one of Michigan 50 Companies to Watch
Named one of Michigan 50 Companies to WatchJohnstone Supply The Sheehan Group was founded with one location in 1997 and now operates 13 branches, providing HVAC/R wholesale good and services throughout southeast Michigan and Northern Ohio. The company employs nearly 100 people and is a member of several industry associations including Air Conditioning Contractors of America (ACCA) and Heating, Air-conditioning & Refrigeration Distributors International (HARDI).
