The deal will see E.ON - the UK’s largest integrated energy services company that runs Powergen - feature on the team's shirts next season.
Mike Thompson, head of sponsorship, E.ON UK, said: “Our sponsorship of ITFC has been very successful in raising awareness of the Powergen brand. By extending this relationship with the club we now have the opportunity to promote E.ON, the company that runs Powergen, to the club’s fans, our customers and the wider community."
E.ON will also become lead partner of the FA Cup from August 1.
