Van der Garde signed to drive for the iSport International team in the 2008–09 GP2 Asia Series season, and in the 2009 GP2 Series season.
At the Hungaroring, he took his first victory, in the sprint race.
He added two more wins before the end of the season en route to seventh in the championship standings.

He had not been due to compete in the 2009–10 GP2 Asia season, but competed in the second round for Barwa Addax.
He drove for the same team in the 2010 GP2 Series season, equalling his seventh place in the drivers' championship, whilst team-mate Sergio Pérez was runner-up.

Van der Garde remained with Barwa Addax for the 2011 GP2 Asia Series season, with Charles Pic replacing the Formula One-bound Pérez as his team-mate.
He finished third in the championship, behind Romain Grosjean and Jules Bianchi, and led the main series after two rounds despite not winning a race.
He did, however, take his first series pole position and fastest lap at Catalunya.
He originally took pole position for the Monaco round as well, but was then penalised for an incident in qualifying.
He took no points from the weekend and lost his championship lead to Grosjean, who eventually secured the title with one round of the series remaining.
He held second place in the championship until the last round of the season at Monza, where he had a disastrous weekend and slipped back to fifth in the standings, behind Luca Filippi, Bianchi and Pic.

As part of his deal to become the Caterham Formula One team's reserve driver, Van der Garde joined the marque's GP2 team for the 2012 season, alongside Rodolfo González.
He returned to the winner's circle with race victories at Catalunya and Singapore, but again was not consistent enough to mount a championship challenge, finishing sixth in the points standings.

On 9 February 2015, Van der Garde returned to this series for testing, racking up over 350 km at the Circuit Ricardo Tormo.
He drove for Campos Racing (previously known as Addax), for the first time.
Van der Garde signed to drive for the iSport International team in the 2008–09 GP2 Asia Series season, and in the 2009 GP2 Series season. At the Hungaroring, he took his first victory, in the sprint race. He added two more wins before the end of the season en route to seventh in the championship standings.
He had not been due to compete in the 2009–10 GP2 Asia season, but competed in the second round for Barwa Addax. He drove for the same team in the 2010 GP2 Series season, equalling his seventh place in the drivers' championship, whilst team-mate Sergio Pérez was runner-up.
Van der Garde remained with Barwa Addax for the 2011 GP2 Asia Series season, with Charles Pic replacing the Formula One-bound Pérez as his team-mate. He finished third in the championship, behind Romain Grosjean and Jules Bianchi, and led the main series after two rounds despite not winning a race. He did, however, take his first series pole position and fastest lap at Catalunya. He originally took pole position for the Monaco round as well, but was then penalised for an incident in qualifying. He took no points from the weekend and lost his championship lead to Grosjean, who eventually secured the title with one round of the series remaining. He held second place in the championship until the last round of the season at Monza, where he had a disastrous weekend and slipped back to fifth in the standings, behind Luca Filippi, Bianchi and Pic.
As part of his deal to become the Caterham Formula One team's reserve driver, Van der Garde joined the marque's GP2 team for the 2012 season, alongside Rodolfo González. He returned to the winner's circle with race victories at Catalunya and Singapore, but again was not consistent enough to mount a championship challenge, finishing sixth in the points standings.
On 9 February 2015, Van der Garde returned to this series for testing, racking up over 350 km at the Circuit Ricardo Tormo. He drove for Campos Racing (previously known as Addax), for the first time.
Giedo van der Garde