News of Davis' resignation follows that of Bell Pottinger founder and chairman Lord Bell, who has left to form a new venture called Sans Frontières, the company announced last week.
Davis, a veteran of Bell Pottinger who has been at the business in its different guises since 2005, will start as director of corporate comms and campaigns at Sky in the near future - an exact date has yet to be determined, PRWeek understands - following a handover period at the agency.
He will report to group corporate affairs director Catherine Hicks, who joined Sky in January from Gap. His remit will include corporate media relations, corporate campaigning, corporate assets, executive speaking, financial comms and issues management.
The role was created after the departure of Sky’s director of external comms, Robert Fraser in June. Fraser’s previous responsibilities will be split between Davis and director of PR Jane Fletcher, who joined Sky in 2014.
Hicks said: "I’m delighted that Gavin is joining Sky to lead our corporate communications and campaigns team. He brings a wealth of experience, having advised numerous FTSE companies over the years, and will be a great addition to the wider corporate affairs group at Sky."
Davis has been in his current role since 2013, when the agency was known as Pelham Bell Pottinger. He had joined Pelham PR in 2005 as a director; that agency merged with Bell Pottinger Corporate and Financial in 2009 to make Pelham Bell Pottinger.
Bell Pottinger CEO James Henderson told PRWeek last week that the agency was eyeing possible acquisitions in the "new dawn" following Bell's departure.
Last month also saw the departure of Bell Pottinger partner and head of creative engagement Kev O'Sullivan after seven months to join Fleishman FleishmanHillard Fishburn.