The Cheltenham office of Cello owned direct marketing and communications agency Tangible has appointed Guy Harris as its new managing partner, with Shane Siberry also joining as head of planning.

Harris was previously business development director for the Digital Marketing Group while Siberry joins from Dunnhumby where he helped establish the Tesco Clubcard scheme.

John Rowley, CEO of Tangible Group (pictured), said: “We see investing in the Cheltenham office as a real opportunity to build on the company’s strong performance over the last 18 months.

“We are really excited to welcome Shane and Guy to the team. They bring with them a wealth of experience and knowledge that will help us to further develop our integrated customer insight capabilities.

“Our clients will now have access to one of the most experienced customer insight teams in the whole of the UK.

“In the coming months we will continue to invest at all levels in the Cheltenham office, from senior management to graduate levels, in order to help further development and growth.”