Cornerstone has made a number of appointments.

Ollie Oshodi has been promoted to UK managing director. She will spearhead the London team on all key client programs spanning campaign strategy, digital, PR, events, social media and content.

Rob Mathie will hold the account director position, heading up the Diageo and Coca-Cola accounts. He joins from HeyHuman where he worked with clients such as Lucozade Energy and Unilever.

Lawrence Ajayi joins as account manager and was formerly activation manager at Adidas Originals UK and account manager for PONY sneakers Europe/USA. He will be working on Converse and across project work on other accounts.

Callan de Villiers completes the latest wave of additions, taking the role of account coordinator.