APO Holdings, doing business as APO Pumps and Compressors, distributes air compressor systems, pumps, and heat exchangers. Major brands include American Pneumatic, Ingersoll-Rand, Floway, and Toyo. The company also provides repairs, rentals, and technical services, which include air system audits and flow and pressure studies. It is Ohio's largest compressed air and pump sales and service provider. APO Pumps and Compressors began operating in 1967; it has offices in Canton, Cleveland, and Columbus, Ohio.