The Good Eating Company has won a contract to provide catering facilities at the London head office of financial services group Nomura.
The caterer, which was acquired by Sodexo in September 2017, will manage a restaurant for the company's 4,200 employees as well as its fine-dining, hospitality, conferencing and events business.
It will also take over the on-site convenience store.
Carlos Mistry, managing director of the Good Eating Company, said: "We are absolutely thrilled to have been awarded this prestigious contract. For the last two years Nomura has been named Britain's Healthiest Workplace in the large employer category and we are looking forward to ensuring it maintains this accolade."
Compass' Restaurant Associates brand had previously held the Nomura contract.