Revenues climbed 36% to £8.24m and are expected to be driven higher over the next six months by the company's acquisition of US-based digital data collection specialist Common Knowledge.
Toluna said its profits were flat because it had made a significant one-off investment in its North American business prior to the acquisition of Common Knowledge.
George Kynoch, chairman of Toluna, said: "Toluna has continued to grow rapidly by executing its stated strategy of becoming the leading independent provider of panel, community and technology services to the market research industry worldwide.
"I am pleased to report that the positive effects of the Common Knowledge acquisition are already appearing in our second half where trading has to date been strong with operating profits for July and August double the equivalent period in 2007."