Mark Begelman co-founded Office Club, an office supply retailer, in 1986, opened 52 stores in 4 years and took the company public in 1989. Begelman served as ceo of Office Club since he co-founded it until 1991 when Office Club merged with Office Depot, a merger in which Office Club's shareholders received a 25% premium. Following the merger, Begelman served as president and coo of Office Depot from 1991 to 1995.