Gerard Lopez, the owner of the newly-winning F1 team Lotus, said he cannot guarantee Genii will remain committed to the sport.
In an interview with Germany's Welt newspaper, the Luxembourger laid out many of F1's problems, including the scarcity of sponsors.
And amid rumours the Enstone based team has been in talks with potential investors, Lopez was asked if the investment company is staying in F1 despite the problems.
"We certainly want to," he answered.
"Our involvement in Formula One is only possible if the numbers add up. At the moment they do.
"But if that is no longer the case, then we would have to think like business people and ask ourselves the question: 'is this still interesting for us, or not?'"