UK online gambling operator Sky Betting & Gaming reported revenue up more than one-third thanks to a dramatic uptick in sports betting.

In figures released on Tuesday, the company said revenue rose 36% to £247m in the 12-month period ending June 30, 2015. Most of this gain came via the sports betting vertical, which improved 56% to £117m, while gaming revenue rose 20% to £117m. The company’s Oddschecker division added revenue of £13m (+30%).

The Leeds-based company’s customer ranks swelled to 1.48m in the period, while average revenue per customer increased by one-third.

Sky Betting & Gaming CEO Richard Flint credited his company’s in-house development team for turning the group’s mobile platform into a money machine. Mobile channels accounted for 80% of Sky Betting revenue and 57% of Sky Casino and Sky Vegas revenue.