Addax will run Charles Pic alongside Giedo van der Garde in this winter's GP2 Asia series. Van der Garde was announced as one of the Spanish team's drivers for the main championship in 2011 earlier this week, and will now return to the team early.
Pic, who raced for Arden in his first GP2 season this year, has now been confirmed as Addax's second driver in both championships.
"I am very happy to race for Addax next year," said Pic. "I had a great feeling with the guys and I am really looking forward to working with the team and being in Abu Dhabi for the first race. I know it will be a hard year with strong drivers but we will work very hard to be strong and reach our targets."
Van der Garde added: "I am happy to have cleared up next year's plans and would like to thank the Addax team for its confidence. The GP2 Series will be racing with a brand-new chassis in 2011, which means everyone will start from scratch with the setup of the car.
"A new chassis obviously brings a great challenge so I am extremely motivated to fight for the championship and continue to work on my ultimate goal which is to race in a competitive Formula 1 seat."