The specialist business tourism PR agency will manage a number of campaigns over the next 12 months to promote the meetings and events space at the club as well as seasonal and match day corporate hospitality.
Davies Tanner will also publicise Chelsea’s stadium tours and museum.
Katrina McCreadie, head of brand at Chelsea, said: 'We have many exciting projects in the pipeline which Davies Tanner’s extensive knowledge and industry contacts will help greatly in increasing the profile and hopefully revenue in those key business areas. We were really impressed with what they had to offer and look forward to working with them.'
The agency has worked with the football club before, charged with promoting its corporate, conference and leisure facilities in 2005.
Stamford Bridge has 21 function rooms and 60 syndicate rooms as well as two hotels with 250 rooms and restaurants, including one from Marco Pierre White.