Catering Academy has secured a five-year contract worth £3.75m with Synergy consortium, a group of 10 primary schools in Coventry.
The caterer was marked above eight other firms in the tender process for the school catering deal.
It said that the consortium had been impressed by its capability to deliver on the Universal Infant Free School Meals (UIFSM) initiative, which is due to be implemented from September 2014.
This is the first schools consortium contract won by Catering Academy, which began the deal in June and is now supplying 1,500 meals a day.
Catering Academy founder Louise Wymer said: "The Synergy consortium signifies the break into a new market for Catering Academy and it's inspiring to know our reputation for service excellence within the education sector has resulted in such a prestigious contract win.
"We're delighted with the feedback we've received so far and look forward to building on the tailored, high quality offering throughout the consortium over the next five years."