Campbell, whose face will be familiar to many in the business world as he has frequently been featured as a commentator on BBC, Sky, Bloomberg and CNN business news, begins work at the London agency today.
He joins following just over two years as head of PR at the online broker FxPro, and prior to that was head of comms at online trading services firm London Capital Group.
Stature's existing client roster is currently more focused on entertainment and consumer sectors, and includes Garmin, the Fijian tourist board, L'Oreal and several TV and film industry firms. Campbell said it also had finance industry clients including Nationwide and the betting exchange Smarkets, but that his job would be to grow this into a full, freestanding division.
Campbell said: "Stature PR has grown rapidly since its inception three years ago and I am very excited about setting up its corporate and financial division.
"It has already proved that it can deliver engaging work and great results for existing financial clients. With an ever-expanding and evolving financial services sector, I look forward to building on its success by combining its creative expertise along with my financial in-house PR background."