Winsupply Inc. continues to expand its wholesale distribution network in the United States with the purchase of controlling interest in Apco Inc., a company in Lansing, Mich., that handles heating, ventilation and cooling, plumbing and maintenance supplies.

Winsupply Inc., a wholesale distributor of industrial supplies and equipment, has acquired Certified Plumbing and Electrical Supply Co. in Live Oak, Fla., company officials announced Oct. 3.