McGarrigle was director of the World Retail Congress. He has worked in business-to-business journalism, publishing and event organising for the retail industry for more than 20 years, in particular with Retail Week, Retail Solutions, Retail Interiors, Retail World and the World Retail Congress and Awards.
He will work in the retail team and continue as chairman of the World Retail Congress as it prepares for the 2012 meeting in London in September.
Victoria Geoghegan has more than seven years’ experience in financial and corporate public relations and has advised companies including Bahrain Economic Development Board, Eros International and Richemont.
The moves are in addition to the agency’s hiring of Phoebe Vela, who joins from The Spectator as head of marketing and comms at the agency.
James Henderson, MD of Pelham Bell Pottinger, said: 'These two senior level hires, are testament to the development and strength of Pelham’s client base and team which has been built over the past six years.'