The agency has signed up a host of launch clients including Oxfam, energy company First Utility, IT security firm Clearswift and mobile safety application, Guardian24.
Brewin formerly worked at Brands2Life and was awarded Outstanding Young Communicator or the Year by the CIPR in 2008. Gaskell previously held director positions with Hotwire and Weber Shandwick.
CubanEight co-founder Brewin said: 'We set up CubanEight because we've seen what works, and what doesn't. We're often selected by clients because we've got the big agency and client experience, but we offer a more bespoke service with a senior hands-on team.'