Accent Catering has a three-year contract at the consumer group Which? in a deal worth £300,000 per annum.
The contract will see the caterer provide services for 450 employees as well as hospitality for visitors to the site.
Gordon Haggarty, managing director at Accent Catering said: "Which? has more than 50 years recognising value and high quality products and services, so this latest contract award underlines our ability to provide superior catering services to our customers.
"We have worked in partnership with the organisation that offers improved menus, more fresh food and greater catering flexibility."
Accent will manage and operate an all-day café and coffee bar at each of the Which? offices in London and Hertford. In addition, the company will provide a fine-dining service where required to cater for council dinners and events held throughout the year.
A new catering manager has been appointed to oversee the London operation and around five employees will transfer to Accent from the existing contractor under TUPE regulations.
By Janie Stamford
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