The company traces its roots to 1974, when Ronald F. McColly founded McColly Realtors in Merrillville, Indiana, and the business later expanded through a merger with Commercial Advantage to form McColly Bennett Commercial Advantage. McColly Bennett Commercial Advantage is a full-service commercial real estate firm serving Northwest Indiana and the Chicago Southland, with work across commercial, industrial, retail, multi-family, rail, and redevelopment. The company operates within McColly Companies, alongside residential real estate, title, insurance, and real estate education businesses.