Pool Corp. swims laps around its competitors. The world's largest wholesale distributor of swimming pool supplies, it operates about 336 service centers throughout North America, South America, Europe, and Australia, serving around 100,000 wholesale customers, such as pool builders and remodelers, retail pool stores, and pool repair and service companies. Pool Corp.'s more than 160,000 products include private-label and name-brand pool maintenance items (chemicals, cleaners), equipment (pumps, filters), accessories (heaters, lights), and packaged pool kits. Founded in 1993 as SCP Holding Corp., Pool Corp's. business is picking up after taking a dive during the downturn in new home (and pool) construction.