In a statement released this morning, the Lexis and Bite owner said the positive trading announced in April had "extended to the first five months of the period".
"Driven by continued strong revenue growth from our North American businesses, the period has also seen sustained margin improvement in the UK and Asia as the group’s work to simplify its non-US operations progresses."
Next Fifteen said that since the year end, it has added "notable additional business" from Google, Unilever and Carnival Cruise Lines. CEO Tim Dyson told PRWeek that the extra briefs from Google and Carnival went to its agencies Beyond and M Booth, while the Unilever account spanned several agencies.
Next Fifteen said: "These wins, combined with the performances noted above, put the group in a strong position to deliver on the board’s expectations for the year to January 2016."
Next Fifteen has also "accelerated" plans to launch London-based digital marketing agency Agent3 in the US in the current year after achieving "early success in Europe"; the company first bought a stake in that business early last year.
Next Fifteen announced its most recent acquisition at the start of July, buying London-based brand marketing consultancy IncrediBull, which will be merged into Text100 UK by 2016.
Speaking to PRWeek in January, Dyson said the firm would not actively target PR companies for its acquisition programme – which will focus on the UK and US – but instead look at content marketing and ad agencies to strengthen its existing PR capabilities. It followed the launch of a share sale to raise approximately £4.3m for expansion.