Williams Grand Prix Engineering Limited, currently racing in Formula One as ROKiT Williams Racing, is a British Formula One motor racing team and constructor. It was founded and is run by team owner Sir Frank Williams and automotive engineer Sir Patrick Head. The team was formed in 1977 after Frank Williams's two earlier unsuccessful F1 operations: Frank Williams Racing Cars (1969 to 1975) and Wolf–Williams Racing (1976). All of Williams F1 chassis are called "FW" then a number, the FW being the initials of team owner, Frank Williams.
Williams have worked with many engine manufacturers, most successfully with Renault, winning five of their nine Constructors' titles with the French company. Along with Ferrari, McLaren, Benetton and Renault, Williams is one of a group of five teams that won every Constructors' Championship between 1979 and 2008 and every Drivers' Championship from 1984 to 2008.
Williams F1 also has business interests beyond Formula One racing. Based in Grove, Oxfordshire, UK, Williams has established Williams Advanced Engineering and Williams Hybrid Power which take technology originally developed for Formula One and adapt it for commercial applications. In April 2014, Williams Hybrid Power were sold to GKN. Williams Advanced Engineering had a technology centre in Qatar until it was closed in 2014.
Frank Williams started the current Williams team in 1977 after his previous outfit, Frank Williams Racing Cars, failed to achieve the success he desired. Despite the promise of a new owner, Canadian millionaire Walter Wolf, and the team's rebranding as Wolf–Williams Racing in 1976, the cars were not competitive. Eventually Williams left the rechristened Walter Wolf Racing and moved to Didcot to rebuild his team as "Williams Grand Prix Engineering". Frank recruited young engineer Patrick Head to work for the team, creating the "Williams–Head" partnership.