The German returned to the squad he raced for from 2007-2011 this year after sitting out last season and has had a good campaign, scoring 26 points so far.
While Force India has yet to finalise its driver line-up, Sutil is confident of staying on.
"I will probably do another season here," said Sutil when asked by AUTOSPORT about his future.
"It's a good team. At the moment, we are not as strong as we used to be but it is one of the strongest private teams and it's hard to find a better seat so I would like to do another season here.
"But I haven't made up my mind completely and no decision has been made."
While Sutil accepts that the team might opt to replace him, he suspects it will be difficult to do so.
He also stressed that it is not simply a case of Force India deciding to retain him and that he has yet to make a final decision on whether he will stay.
"It's not all about the team and whether they say I am allowed to drive or not, I can also make some comments [about] if I want to stay here.
"It's 50/50, it's not that they decide what I'm allowed to do.
"I think I am in a strong position, I have done my job this year and you would have to find someone else who does the job like I do.
"If there is a better drive somewhere out there and they want him, fine take him and good luck."
Sutil believes that the quality of his driving this year has not been rewarded with as many results as it should have done.
"I lots out on quite a few results and I knew they were big changes in Barcelona, Bahrain with the puncture, Malaysia with the pitstop problem," he said.
"I think we missed out on three top results. But that's how it is, you can't change it."