He joins after spending 10 years at Staffordshire agency 8848, where he oversaw accounts such as Persimmon Homes, Goodyear Dunlop and Autoglym.
Southen said: “Grayling has an unrivalled reputation for delivering integrated communications on behalf of some of biggest brands in business. I’m looking forward to bringing a fresh and creative approach to aid the existing, highly experienced PR team here in Birmingham.”
Hayley Longdin, head of Grayling Birmingham, added: “Lee’s appointment adds strength to our growing and very talented team and is exactly the kind of forward-thinking individual needed to support our ever-evolving offering.
“His wealth of experience across both agency and client-side environments will continue to position Grayling as a leading agency within the Midlands.”