Half year revenue was up seven per cent at competition company Best of the Best, boosted by growth in its online business and a reduction in the cost of sales.
For the six months ended October 31st 2013, online revenues increased by 22.5% to £1.49m (2012: £1.21m), representing 43.9% of total revenue, which rose 7.3% to £3.46m (2012: £3.22m).
Profit before tax rose to £0.22m from £0.01m the same period a year earlier.
William Hindmarch, Chief Executive, said: "We remain on track for an improved year-on-year performance. Results have been underpinned by the continued growth of our online business [...] as well as solid results from our physical sites. Our website has experienced higher levels of traffic which together with our social media channels has contributed to customer acquisition, improving both revenues and transactions volumes.
"Looking ahead, our focus will be on the acquisition of new players online, as well as on improving the audio visual and experiential nature of our physical sites, to attract new customers. We are optimistic about the future prospects of the company over the remainder of the financial year and beyond, and I look forward to updating shareholders in due course."
The company generated £0.54m of operating cash flow and reported a net increase in cash of £0.41m for the period, which helped increase cash balances to £2.36m.
The group did not propose an interim dividend but said it currently expected to be able to offer one for the full year.
Optimal Payments expects 2013 revenue and earnings before interest, tax, depreciation and amortisation (EBITDA) to exceed market forecasts following a strong performance in the second half.
The company's online payment businesses Neteller and Netbanx boosted revenue in the second half, according to a trading update on Monday.
During the second half, the group invested heavily in the US gaming business and increased its headcount to drive future growth.
The firm now expects that reported revenue for the full year should not be less than $245m, up from $118.4m in the first half. EBITDA is tipped to be at least $51.5m, compared to $25.2m in the previous six months.
President and Chief Executive Officer, Joel Leonoff, said: "2013 has been an exceptional year for the Group with substantial growth in revenues and in particular EBITDA which evidences the strength of our operationally geared business model.
"We believe that the ongoing investment we are making in expanded infrastructure and US on-line gaming initiatives will help to drive sustained future growth in 2014, 2015 and beyond."