In June, 7digital acquired 24-7 Entertainment, its only European competitor.
It has the contract to supply services to MediaMarktSaturn, Europe’s largest electronics retailer.
Contracted and billed revenues jumped to £18.6mln, with £6.5mln coming from MediaMarktSaturn, though £1.3mln is to be recognized in the first quarter in 2018.
Simon Cole, chief executive of 7digital, said in the company's year-end trading update that 2017 was a year of major transformation for the company.
As well as lower losses than expected, Cole said the group was profitable in the second half and on track for a full year profit in 2018.
Shares rose 2.5% to 5p.