Journalist Martin Greig, who has worked on the flagship show as a senior business news producer for the past 11 years, will join the agency in March.
He is the first of a series of key additions the firm intends to make during the coming months as it looks to quickly grow its presence in the industry.
Jonathan Clare, executive chairman of Newgate PR, said: ‘Our goal is to be one of the leading international public relations consultancies, attracting exceptional and motivated people by offering them outstanding opportunities.
‘Our ability to provide clients with a breadth of counsel spanning capital market comms, corporate reputation building with business opinion-formers and public policy and regulatory consultancy from one team is attracting a lot of interest from companies and organisations, as we can offer senior advice with high standards of service.’
As well as his time on the Today programme, Greig also edited BBC Radio 5-Live’s Wake up To Money programme, produced BBC Radio 4’s You & Yours programme and BBC Radio 2’s Jimmy Young programme.
Greig, who started his career with London News Radio, said: "This is a very exciting time for Newgate as it embarks on a programme of rapid growth and expansion. I am thrilled to have the chance to be part of that."
His comments come as Newgate’s holding company, Porta Communications, announced its acquisition of Hansard Communications – a financial PR agency specialising in the small-cap sector.
Porta has acquired Hansard in a cash and shares deal worth approximately £635,594.
Porta now has control of key staff and all client assets linked to the West End firm and will incorporate the agency into Porta’s Newgate Threadneedle division, which it established last year after buying out financial PR agency Threadneedle.
The deal means the agency now oversees more than 80 AIM and Main Market-quoted companies, putting Newgate Threadneedle in number one position in the Morningstar/Hemscott rankings for biggest number of AIM clients advised.