Sauber will retain its current drivers for 2012, with Kamui Kobayashi and Sergio Perez having agreed to new contracts with the Swiss-based team.
"We are very pleased with our drivers," team principal Peter Sauber said. "Kamui has grown into his role extremely well this year. Though it is only his second full Formula 1 season, he is already taking on the responsibilities that naturally fall to the more experienced driver in the team. We are delighted with him at both a sporting and a personal level. We had an option of working with him in 2012 and there was never any doubt that we would take it."
Perez already had a contract in place for 2012 after agreeing to a multi-year deal before he signed, and Sauber said that the Mexican's pace this year had shown he was right to have faith in the youngster.
"Sergio has achieved more than one could expect from a rookie," Sauber added. "From the very first race, he proved that he is capable of driving not only fast, but consistently as well. And, after the accident in Monaco, he demonstrated that he can handle difficult situations, too.
"From the outset, we had already signed a contract with Sergio that went beyond 2011. With a rookie that always entails a certain risk, of course, but clearly it has paid off."
Perez said that having confirmation that he was remaining on board for next year would be a boost to his focus for the remainder of this campaign.
"Of course, it is very good to have continuity and this way I can intensively prepare with my race engineer for what will be my second Formula 1 season," he said. "But for now I'm concentrating on finishing this season on a high. The summer break will be very good for me because since my accident in Monaco it has been a busy time."
Sauber has also confirmed it will retain Esteban Gutierrez as its reserve driver.
"Esteban's career is advancing in steady strides," added Sauber. "After his commanding victory in GP3 it was a logical step for him to move up into GP2, where he has now taken his first win. He will then enter Formula 1 when he is ready for it. For us he has been a firm fixture of the team since 2010, and we will continue to support him on his way toward Formula 1."
Sauber's decision to retain both its drivers comes amid an increasing likelihood that there will be no major driver changes among F1 teams this year. Ferrari is the only squad to officially confirm the identity of both its drivers, with Fernando Alonso and Felipe Massa remaining on board. However, Red Bull Racing, McLaren and Mercedes GP are almost certain to have unchanged driver lineups next year, too.