Next Fifteen has acquired London agency IncrediBull World, a 21-staffer digital brand marketing firm slated to be integrated into Text100.

incredibullNF paid around $2.5M upfront for the firm in cash and stock with earnouts to be paid through the end of the year.

Richard Parkinson, managing director and co-founder of IncrediBulll, becomes global head of client services for Text100.

IncrediBull clients include Skype, NCR and SunTrust.

Text100 CEO Aedhmar Hynes said IB has of "impressive work across the world creating brand platforms from which to serve up great content and engage with customers."