Berwin Leighton Paisner (BLP) is expanding the business venture it shares with accountancy giant Deloitte, in a move that could hand the firm a multi- million-pound cash windfall.

The online business advisory service, beprofessional, set up by BLP and Deloitte in 2002, provides small businesses with legal, accounting and IT documents and software necessary to start and run a company. However, it is now rolling out its products to large corporates.