The new American Haas F1 Team could announce their first driver lineup within the next two weeks.
Team boss Gunther Steiner said on Monday that he has drawn up a list of about 10 potential candidates for the new, Ferrari-linked team.
"It was a good response when we contacted them," he said. "No one said, 'hey, this is new, I don't want to go there.'
"We are talking with about 10 people. Some are higher up the list, some are lower. But we want to see who is out there."
Recent reports have said Ferrari test drivers Esteban Gutierrez and Jean-Eric Vergne are high on the list, as is Force India's Nico Hulkenberg.
Californian GP2 driver Alexander Rossi, and IndyCar race winner Josef Newgarden have also been mentioned, but says F1 experience is key.
"For sure it is very important. We are a new team - everything else is new, a lot of unknowns, so we need a known quantity. And if the experience is coming with speed, even better.
"I think we can make a decision, or we would like to make a decision, by the end of summer. Then we can get prepared, the car needs to fit the driver, and we also need time to explain to our driver what we are doing.
"So by September, I hope we have the decision for at least one, if not two. Ideally it will be two.
"But we have got interesting candidates, which is very nice for us to have drivers with a good reputation who talk to us seriously. I hope we can pull some of them off."
