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Next Fifteen Communications Group reported revenue grew 18.4% to $94.2M (£61.8M) for the six months ended July 31 on the strength of its North American business.

Next Fifteen, which owns firms including Text 100, Bite, OutCast and M Booth, saw operating profit climb 30.9% to nearly $11M (£7.2M). Chairman Richard Eyre singled out North America's 10.3% organic revenue growth as a key driver of the company's success during the period.

OutCast, M Booth, Beyond and Blueshirt led a strong US showing that included 38% growth to nearly $61M. UK operations were up 5%.

Key business wins included Autodesk, Intel, Airbnb, West Elm and Trainline.

Debt rose to $30M fom around $18.5M a year earlier. Acquisitions during the period included IncrediBull World Ltd, Republic, Beyond, Encore and Animl.

Next Fifteen claims more than 1,000 staffers across 35 offices in 18 countries.