The venue, named Brigade, will also be available for event hire and private dining.
De Vere Venues chief executive Tony Dangerfield said: "We’ve worked in partnership with PWC for many years and this venture is hugely important for us. De Vere Venues is continually seeking innovative ideas and this initiative complements our existing business. The Fire Station is a fantastic product for London’s hospitality scene as well as providing a great opportunity for vulnerable people."
PWC managing partner Richard Collier-Keywood added: "I am convinced that this new model of social entrepreneurship, embracing the public sector and large business, will lead to sustainable social change."