The Carlson Rezidor Hotel Group, which owns hotels such as the Radisson, is thought to be considering sale options.
According to a report by the Wall Street Journal, Carlson Rezidor could be considering a potential sale, partnership or merger.
The hotel group recently tasked its regular banker, Morgan Stanley, to review the business in view of potential sale or merger.
The news comes after a number of recent high profile hotel mergers, as Marriott International acquires Starwood Hotels & Resorts, and AccorHotels acquires FRHI.
According to STR Inc, Carlson Rezidor Hotel Group operates over 1,100 hotels, and up to 174,000 rooms, world-wide.