Wilson Vale has won a catering contract with Moor Hall Conference Centre in Cookham, Berkshire.
It will take on an 18-month contract at the 80-bedroom residential venue, which is also home to the Chartered Institute of Marketing.
An eight-strong team will deliver breakfast, lunch, evening and hospitality service for up to 200 people at the venue.
Wilson Vale co-founder Andrew Wilson said: "The level of understanding and expertise we have within this niche sector is driving the growth of our venues portfolio. Our clients know the impact that great food and service can have on a venue's reputation and performance - and how it can influence delegates' perceptions and their decision to return."