Andy Bloxham, Neil Cameron, Lorna Cobbett and Liz Lynch, previously associate partners, have now joined a group of more than 60 people with an ownership stake in the business, which employs 250 staff in the UK and abroad.
Since starting life as an LLP with 50 partners, the agency has added to its ranks with external appointments such as Will Powell and Jamie Lyons, but has introduced this process to ensure people inside the business understood the progression they could make to partner level, according to group MD David Wilson.
"We wanted to formalise the process to give it a thoroughness," said Wilson. "So what we’ve done is get recommendations for future partners from our MDs. Each of the people put forward gave us a presentation on why they should become a partner and what value they were going to add."
Bell Pottinger group CEO James Henderson added: "All four of these promotions are richly deserved."
The new partners span the different practices within the business. Bloxham, a former journalist, is part of the corporate team while Cameron, who has been with the company for nine years, is in the crisis management team.
Cobbett, a former investment banker, is in the financial practice and Lynch is a government communications specialist in the political practice.