Goldbug, which is working with Lewis on a retained basis, said its PR team will work closely with the comms team at MSE, where Lewis remains executive chairman after the site joined the MoneySupermarket Group in 2012.
However, the agency’s work will focus on his activities away from MSE, which includes his continued campaigning against scam ads, as well as his other charitable commitments and work with the Money and Mental Health Policy Institute.
Earlier this year Lewis settled his lawsuit against Facebook in return for a £3m donation to set up a Citizens Advice scams action project to launch a new scam-ad reporting tool. In April 2018, Lewis issued High Court proceedings for defamation against Facebook after a year in which over 1,000 scam adverts abusing his name or image had appeared on the site.
Goldbug co-founder James Saville said: "We’re big fans of Martin and everything he stands for in giving consumers honest, transparent and entirely impartial guidance over their finances.
"He’s a natural media campaigner who cares just as deeply off camera about standing up for average Joe and Jane as he does on camera. What you see is what you get – real passion, unshackled campaigning and considered advice… all at a million miles an hour."
Murray Harkin, who runs the agency MHA PR, handled comms for Lewis for more than 12 years, including the flotation of MSE, overseeing all his personal and TV publicity.
Harkin told PRWeek it was "100 per cent my decision to stop working with Martin" and he has "moved into new challenges". Harkin is currently looking after comms for financial guru and author Warren Shute.
Lewis founded MoneySavingExpert.com in 2003 for £100, and it grew to be among the UK's biggest consumer websites, with around 16 million users per month.