The headquarters of Fortune 500 companies Tenneco, Brunswick, and Hospira are located in Lake Forest; Akorn, Covered Logistics, Horizon Therapeutics, IDEX, Packaging Corporation of America, Pactiv, Prestone, and Trustmark also have their headquarters in Lake Forest, while W. W. Grainger and BFG Technologies are located in unincorporated Lake County, near Lake Forest. The Chicago Bears training facility and headquarters, Halas Hall, opened in 1997 in west Lake Forest, and the Chicago Fire now train at the Bears' previous facility located on the campus of Lake Forest.