Robin Mills has been appointed managing director of Compass UK & Ireland.
Mills will formerly take up the position on Monday, in a promotion from his roll as group chief people officer.
He replaces Chris Garside who moves on to an international role in the business.
Group chief executive Dominic Blakemore said: "I'd like to thank Chris for the contribution he's made to our business in the UK & Ireland over the last ten years. I'm delighted that Robin will be returning to the UK business to lead the UK & Ireland team on its growth journey."