Sodexo has won a five-year deal to deliver dining, portering, cleaning and helpdesk services for Imperial College Healthcare NHS Trust.
The caterer will work across five of the trust's sites, including Queen Charlotte's & Chelsea Hospital, Hammersmith Hospital, Charing Cross Hospital, St Mary's Hospital and the Western Eye Hospital.
It plans to introduce a variety of local and seasonal food offers in restaurants and coffee shops in the hospitals, which will be open to patients and visitors.
Simon Scrivens, managing director for Sodexo's healthcare business, said: "This prestigious contract is the beginning of a collaboration with the trust delivering first-class patient experience. We are delighted to have such a wonderful opportunity to serve the Trust staff and over two million patients cared for by the trust."
Chris O'Boyle, director of estates at Imperial College Healthcare NHS Trust, added: "Our catering, cleaning and portering services are vital to providing good, safe care and making our patients' time here as easy and comfortable as possible. We are very pleased to work with Sodexo towards delivering an excellent experience for all our patients and staff."