No jobs will go at the Virgin Active gym in Gloucester when a takeover by rivals Nuffield Health is finally completed this month.
Bosses at the Richard Branson owned firm said workers there are safe, and will be offered to continue working under their current contracts once the takeover is complete.
The health and racquet club at Gloucester Business Park in Brockworth will remain with Virgin Active.
But gym users at the Barnwood site will be in for a change when Nuffield Health begin running the larger of the two Virgin Active fitness centres operating in the city.
The gym provider currently runs 140 fitness centres nationwide, and has agreed to sell off nine of its UK clubs to rival operator Nuffield Health.
The sale is expected to go through in the next few weeks.
James Shillaker of Incorpore & GymFlex said: “It’s not uncommon these days to see gyms changing hands. In this case, the gyms are leaving one quality operator and becoming part of another.
“I think our GymFlex existing members should be excited about the news.
“Nuffield offers a wider range of health services in its facilities so members can expect even more benefits from their gym membership.”
Nuffield Health is a not-for-profit healthcare organisation dedicated to improving the health and wellbeing of people across the UK.
Virgin Active gym member Kelly Griffin, 32, from Churchdown, said: “I’m a member of the racquets club, but the other gym is closer to my house so it is more convenient.
"It is the first I’ve heard it is being taken over so I don’t know how it will affect my membership. I’m a member at the Brockworth gym and I will miss the dual use.
"It has been handy knowing the Barnwood gym is available if the other one is busy.
"Whenever there is a takeover, you worry for the staff.”
The date for the sale has not yet been finalised but Virgin Active has assured members it is business as usual until then.
A spokesman said: “The situation for existing members will not change once the takeover by Nuffield has been completed.”