James joins the Chichester-based firm from consulting, outsourcing and investment company Mercer, where she was an account manager. Before that, she worked at publisher Wiley.
Ajay Parekh, director of Kabuki, said: "It’s great to have Rachel on board at such an important time for Kabuki. Her experience speaks for itself and she has already demonstrated her expertise by hitting the ground running, managing existing clients and new projects."
Earlier this year, Kabuki produced a series of films to promote Unilever's involvement in CSR initiative One Young World, which runs a series of events and forums aimed at the global corporate community.