Live dealer online casino technology providers Evolution Gaming capped off a banner year by nearly doubling its profit in the final quarter.

On Tuesday, Evolution released its Q4 and FY15 results, which showed Q4 revenue rising 62% to €22.4m while profit surged 81% to €7.5m. The company said most of the gains came from expanded business with existing customers, who are increasingly looking to launch customized live dealer casino environments.

For 2015 as a whole, Evolution’s revenue was up 55% to €75.2m while adjusted operating profit soared nearly 82% to €25.1m as margins gained five points to 33%.

Mobile was a key driver of growth, with Q4 mobile revenue rising one-third from Q3, now accounting for 32% of operators’ overall live dealer revenue.