Sauber principal Monisha Kaltenborn has revealed that the team's early-season form is catching the eye of potential sponsors.

The Swiss constructor has made a strong start to 2015, with both Felipe Nasr and Marcus Ericsson finishing in the points at the Australian Grand Prix.

Kaltenborn believes that their improvement from 2014 is leading to companies showing an interest in working with Sauber commercially.

"It's very important because it tells people we are back to where we usually are and last year was really an exception," Kaltenborn told F1i.

"Of course it hurts to be that far back on the grid but anyway we have to go through that now. Of course it's not as easy as you straight away have 100 people lined up, but yes you can attract a lot more attention and you are more attractive and that helps."

Sauber were one of two teams who failed to score a single point last season.