West, who left Tavistock in August after seven years at its helm, will offer his services to "a range of corporates, entrepreneurs, family offices and the professional firms that invest in or advise them", he told PRWeek.
Belvedere, which launches this month, has already been retainted by telecoms and entertainment firm Digicel, which operates across the Americas and Asia-Pacific, for its pending IPO on the New York Stock Exchange – alongside Murray Consultants in Ireland and Finsbury in New York.
It is also working with mobile top-up provider Ding, Focusrite and Real Good Food, as well as a wealth management firm, research firm and housebuilder, West said, although he said he could not name these.
Ole Bettum, a City finance professional and co-founder of venture capital firm Bestport Ventures, has joined as chair of the firm. West has also hired Kim van Beeck – a trained lawyer who turned to publishing and most recently worked as an editor for Cosmopolitan magazine – as an account manager.
West said: "Differentiation among mid-size agencies is increasingly difficult, as clients either want a multi-service global agency backed by a strong delivery capability and digital offering; or else they are seeking meaningful access to senior and experienced consultants with a particular specialisation.
"The former can only truly be provided by large and well capitalised agencies; the latter by building a business model anchored on senior communicators that are truly embedded in client communications, and it is this model that Belvedere will pursue."