Reuben joins the agency after having spent six years as head of media at Barclays Premier League outfit Bolton Wanderers.
As part of his role, he advised former Bolton Wanderers' and Newcastle United manager Sam Allardyce on his media profile and punditry work over the summer.
Reuben has also held senior roles at Football League club Burnley FC and Super League Champions Leeds Rhinos.
Blue Crocodile was set-up earlier this year. A number of cricketers are already on its books including new Yorkshire captain Anthony McGrath and Yorkshire and England all-rounder Tim Bresnan.