Limerick's John and Patrick Collison and Cork-born CoderDojo co-founder James Whelton have made the latest Forbes list of 30 under 30 - the magazine's pick of "disruptors, innovators and entrepreneurs" to watch across the world in 2013.
A fourth young Irish man is also on the list; Dublin's Jonathan Cloonan, a heavy-hitting account director at the WPP company Group M, based in Singapore.
The Collison brothers - who have been known here since Patrick won the Young Scientist...
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