Nunwood declined to reveal its financial records for the first six months of the year, but said that its new offices had fuelled the company's sustained expansion.
Clare Bruce, Nunwood CEO, said: "Our newer offices in London and New York are already making a real contribution to our group revenue with major new client acquisitions, including InBev, B&Q and Tesco to name but a few. 2007 has been a major year of growth within our international business with more global projects than ever being commissioned by our clients."
The consultancy expects to see further growth this year following the launch of its in-store shopper evaluation last month. The new service is geared towards retailers and brands owners, and captures consumers' behaviour on camera for extended periods of time.
Nunwood's new ROI strategic management proposition, due to launch later this summer, is also expected to generate more business. To accommodate this expansion the company is looking to appoint a number of senior insight, analytical and web-development executives.
Last year, Nunwood broke the £1m mark in sales twice with its existing roster of clients that include Nokia, BSkyB, Heinz, Becks and Britvic.
Leeds-based Nunwood has opened a new London and New York office in the last seven months.