Team manager Beat Zehnder says Sauber are closing in on the light at the end of the tunnel as all salaries – and outstanding salaries – have been paid.
Sauber, still without a point this season, have made headlines for all the wrong reasons of late.
The team has been dogged by financial troubles, which have resulted in salaries going unpaid.
Earlier this week, though, it was reported that team boss Monisha Kaltenborn was close to finalising financial backing for the team.
Asked whether the atmosphere at Sauber was more "positive", Zehnder replied: "Paying salaries definitely helps for the atmosphere in the team! Paying the salaries, the outstanding salaries, is part of a comprehensive solution we were still working on but for any details you have to ask Monisha.
"Obviously there is a change in atmosphere because now everyone believes again that there is a future.
"The crucial thing so far was not to give up and I think we can be very proud of our team here on the track and at home that kept on pushing in our very limited areas.
"There was always light at the end of the tunnel – but as you know Switzerland has just opened the longest railway tunnel in the world – the light was always there, the tunnel was just massively long.
"The tunnel is getting shorter now."
The team manager admitted that it has been a difficult period for the Swiss team but insists the future is brighter.
"It’s not always easy, it’s for sure easier on the track because everyone who is here loves to do what they are doing, they love racing and so the motivation part on the race track is a simpler one than back home in the office.
"For the technical department, for the design office, sometimes it is quite frustrating, knowing you have things in the pipeline but you cannot bring it to the track because of financial reasons.
"But, as I say, there should be a brighter future."
Experience the full coverage of the FIA Formula One season throughout 2016 on FOX Sports Play, where you can watch LIVE races from angles unlike any other, highlights, interviews, behind the scenes and many more. Don’t miss it!