The figure was included in the latest set of accounts released recently at Companies House.
It came as the Luton-based company revealed it had made a pre-tax profit of £19.2 million in the year to the end of October 2015. Turnover decreased from £990 million to £828.1 million.
The move into the black capped a remarkable turnaround for the business, which came close to going bust in 2014, when it made a pre-tax loss of £57.3 million.
Under the leadership of chief executive Andrew Swaffield, the group cut costs and eventually secured the backing of investor Greybull Capital.
