Patrick Park is a director of Park Corporation, a company founded by his father Raymond in 1949. The multi-national corporation is based in Cleveland, Ohio, with businesses located around the United States and the world. Forbes Magazine has listed it three times over the last decade amongst the top "400 Companies."
The family held group of companies has numerous manufacturing operations including WHEMCO Group, as well as an automotive stamping plant, a copper mine in Arizona and road building equipment in South America. Park Corporation operates the International Exposition Center (IX Center) in Cleveland and owns and manages commercial and industrial real estate across the nation.
Park Corporation partnered with Steve Wynn to build one of the first luxury condominium buildings in Las Vegas, Park Towers. They purchased American Axle based in Detroit and built it into the largest axle manufacturing company in America. Blackstone Group would later purchase the firm. With takeover giant Wilbur Ross they created International Steel Group (ISG). ISG was later sold to Mittal Steel.