Portola Packaging, Inc. is a leading manufacturer of tamper-evident plastic closures and containers for dairy, juice, five-gallon bottled water, sports drinks, and food products. The company is known for its superior product integrity, manufacturing excellence, technical service, global manufacturing footprint and speed-to-market. Portola Packaging operates manufacturing and distribution facilities in the United States, Canada, Mexico, United Kingdom, Czech Republic, and Russia. The company also licenses its technology in various markets worldwide. Portola sells its products through its in–house sales team, sales representative organizations, and various distributors. The company is majority owned by private equity sponsor Wayzata Investment Partners and is based in Naperville, Illinois.