Yush Kalia, who joins from Edelman; Estela Drakic, formerly of TBG Digital, and TAG’s Will Allen have all been handed group account director roles.
Kalia’s move follows two years with his former employer, where he worked on clients including XBox, Diageo and Unilever.
Joining from Oh La La Cheri Brand, where she was head of commerce, Drakic has also worked at TBG Digital, and was formerly head of business development for Buchanan Group.
Allen, meanwhile, had worked at global brand services agency TAG as digital account director and studio manager for four years.
We Are Social’s London HQ now has a team of 145, up from 130 at the end of 2013.