The supplier won the title at the awards, which highlight quality speciality cheesemakers, for its Montgomery’s Extra Mature Cheddar.
The company also won the trophy for the best English cheese for its Ogleshield brand.
There were 807 award entries from 169 cheesemakers - a record year. Winners were announced on the first day of The Great British Cheese Festival, which ran from September 24-26.
A total of 105 cheesemakers exhibited at the festival this year, plus retailers and 45 other suppliers.