Exhibit 10.17 GTECH CORPORATION PARTICIPANTS IN EXECUTIVE SUPPLEMENTAL RETIREMENT PLAN W. Bruce Turner David Calabro Jaymin Patel Marc Crisafulli Kathleen McKeough Timothy Nyman Larry Smith (terminated in January 2004) (1) Donald Sweitzer Antonio Carlos Rocha (terminated in August 2003) - ------- (1) Did not receive payment for fiscal 2004.