The appointment follows a split from two-year incumbent Bite Communications, which did not repitch (PRWeek, 12 Jan).
Prior to Bite, the account was held by August.One Communications – also a Next Fifteen agency.
Text 100 already represents Gartner in France, Germany, Singapore, Australia and the US.
Senior account director Sherrie Weldon is to head the account, reporting to Surrey-based Gartner V-P of PR Hanne Main.
Gartner’s global HQ is in Stamford, Connecticut.
The company’s research is frequently referenced in the IT press, particularly in connection with controversial IT topics.