John O’Brien

John O’Brien


John O’Brien is S3 Group’s Chief Executive Officer and a member of the company’s Board of Directors.

Under John’s leadership, the S3 Group team has created multiple businesses in the Digital Health, Semiconductors, Digital TV and Communications sectors.

The S3 Connected Health business provides hyper-personalized, digitally-enabled behavior change and support programs that improve patient engagement and healthcare outcomes



John has extensive experience in Business Creation and Strategy, Business Development, and Corporate Finance including fund raising, acquisitions and successful business exits.

John is an active member of the Irish Software CEO Forum and a board member of both Technology Ireland and the Irish Medtech Association.

He is an engineering graduate from the University of Limerick, having graduated in 1984 with a Bachelor’s Degree in Engineering (B.Eng.). 
He earned his MBA from the Smurfit Business School at University College Dublin. John has also completed the Enterprise Ireland Leadership for Growth program at Stanford University


Latest News