Among them is Northampton Saints' No 8/flanker Mark Soden and U21s hooker James Buckland.
England U21 manager Peter Drewitt said ahead of the competition: "The U21 World Championship provides the players with an outstanding opportunity to compete against the best in the world at their age level and I have no doubt that they will find the tournament both challenging and rewarding."
England U21 squad
Forwards: James Buckland (Northampton Saints), Nick Cox (Gloucester), Phillip Davies (Sale Sharks), James Forrester (Gloucester), Ben Gotting (London Wasps), Michael Holford (Leicester Tigers), Stuart Hooper (Saracens), Mark Irish (Gloucester), Mike McCarthy (London Wasps), Alistair McKenzie (London Wasps), Chris Morgan (Bristol Shoguns), Martin Purdy (London Wasps), James Scaysbrook (Bath), Mark Soden, (Northampton Saints).
Backs: Adam Billig (Leicester Tigers), Alex Cadwallader (Bristol Shoguns), Anthony Elliott (Sale Sharks), Jon Goodridge (Gloucester), Ben Hampson (Saracens), Andrew Higgins (Bristol Shoguns), Paul Hodgson (Bristol Shoguns), Matthew Honeyben (Saracens), Simon Hunt (London Irish), Ed Thrower (London Irish), Sam Vesty (Leicester Tigers), Tom Voyce (Bath).