Prop Bower, flanker Everard and fly-half Ford were all part of the squad which enjoyed a Six Nations Grand Slam this season and retain their places in a 26-man selection.
Head coach Rob Hunter said: “We had a lot of competition, but a lot of the lads played well throughout the Six Nations and deserve their seat on the plane to Italy.
“This is a very different competition to the Six Nations. There are a lot of games in a relatively short amount of time. The first one against Ireland, when everyone is fresh, will be very tough.”
England face Ireland in Treviso on Friday, June 10 and face Scotland four days later, followed by South Africa in Padova on June 18, with the semi-finals scheduled for June 22 and final on June 26.
England U20 2011 Junior World Championship squad
Forwards
Mako Vunipola (Bristol Rugby)
Ryan Bower (Leicester Tigers)
Will Collier (Harlequins)
Henry Thomas (Sale Sharks)
Koree Britton (Gloucester Rugby)
Rob Buchanan (Harlequins)
Mikey Haywood (Northampton Saints)
Joe Launchbury (London Wasps)
Sam Twomey (Harlequins)
Charlie Matthews (Harlequins)
Sam Jones (London Wasps)
Matt Everard (Leicester Tigers)
Matt Kvesic (Worcester Warriors)
Alex Gray (Newcastle Falcons)
Backs
Chris Cook (Bath Rugby)
Dan Robson (Gloucester Rugby)
George Ford (Leicester Tigers)
Owen Farrell (Saracens)
Ryan Mills (Gloucester Rugby)
Guy Armitage (London Irish)
Elliot Daly (London Wasps)
Jonathan Joseph (London Irish)
Andy Short (Worcester Warriors)
Marland Yarde (London Irish)
Christian Wade (London Wasps)
Ben Ransom (Saracens)
