PRWeek understands the agency will now report to the brand’s UK team for retained work after a pitch process.
It will cover the gamut of Red Bull’s sporting links, ranging from its sponsorship of the cliff diving world series through to sponsorship of cricketer Stuart Broad.
The account is also understood to include work for the company’s Formula 1 team.
The move comes after the energy drinks company recently brought in John Doe to help it launch a new range of drinks in the UK.
Last year, the company was behind Felix Baumgartner's widely viewed highest-ever skydive.
Pretty Green won the Red Bull work as a start-up in 2008.
The work came after agency founder Mark Stringer's former employer Exposure resigned the account.
Both Pitch and Red Bull declined to comment.