It achieved pre-tax profits of £5m, up from £3.5m in the same half period the year before.

YouGov reported data products and services revenue up 32% to £15.8m – 38% of its total. YouGov BrandIndex revenue increased 45% to £6.8m and Omnibus revenue grew 28% to £7.4m.

Stephan Shakespeare (pictured), chief executive, said: "Another half-year of strong organic revenue and profit growth demonstrates the successful implementation of our strategy. Increasingly, clients are looking for new solutions with greater sophistication and efficient operations, and our global data products and custom research services provide that, leading to continued out-performance against the research market.

"The expansion of our model and brand into new markets such as Asia Pacific, and of operations into Eastern Europe, is also contributing successfully to our global development. We are well positioned for the future and see significant opportunities for further growth of our existing syndicated data products and data services, including high potential for the YouGov Cube and YouGov Profiles."

Growth in the US was 14%, in the UK 17% and 6% in the Nordic region; it fell in Germany by 3%.

YouGov has 28 offices in 21 countries with panels in 37 countries.