Google Ventures invests in Atlanta start-up Ionic Security

BOSTON (Reuters) - Google Inc's Google Ventures co-led a $25.5 million (15.3 million pounds) investment in Ionic Security Inc, an Atlanta-based start-up developing technology to protect corporate data on mobile devices and in the cloud.

Other investors in the round include Jafco Ventures, Webb Investment Network and existing shareholder Kleiner Perkins Caufield & Byers, as well as security industry executives Phillip Dunkelberger and Paul Judge.

Ionic Security, which was founded in 2011, has raised $38 million (22 million pounds) to date.

(Reporting by Jim Finkle; Editing by Richard Valdmanis and Nick Zieminski)