Compass Group's education business Chartwells has won a £25m contract extension at Oxford Brookes University.
The new five-year deal will see Chartwells continue to provide catering and retail services to 18,000 students, staff, visitors and conference and event customers on three campuses across five sites.
The caterer will also expand its service provision to the University's new John Henry Brookes Building.
Chartwells has provided catering to Oxford Brookes University for 20 years. In that time it has worked closely with the university to promote the importance of creating a sustainable environment to staff and students.
As a result, Oxford Brookes was the first university in the world to gain Fairtrade status (2003) and gain Marine Stewardship Council Chain of Custody certification (2009).
Robin Mills, managing director of Chartwells, said: "Sustainability is central to the ethos of Oxford Brookes University so it is vital that we share its long-term vision.
"Across campus there is now a genuine interest in food provenance and sustainable sourcing so it is brilliant news that we will be able to keep developing these initiatives, while continuing to create great experiences for students and staff and delivering fantastic food day in, day out."
Phillipa Fletcher from Oxford Brookes University added: "This partnership gives us the opportunity to achieve our vision of providing an exceptional on-campus experience, ensuring that freshly prepared food that looks great, tastes fantastic and offers real value for money is widely available.
"In partnership with them, we have some very exciting plans for transforming the catering whilst remaining committed to the university's environmental and ethical values."
Other initiatives by Chartwells and the university include encouraging students and staff to grow their own fruit and vegetables through a kitchen garden programme and waste reduction initiatives to reduce the institution's environmental impact.