Leyton Orient duo De'Reece Vanderhyde and Harry Lee have both signed one-year contracts with the London outfit.
The 18-year-olds, who have both appeared on the bench for the club this season, are expected to be active members of Russell Slade's first-team squad next season.
Slade told the club's official website: "I'm pleased to see these lads come through, they are good characters and they've impressed us this season.
"Full credit to [youth team boss] Andy Edwards for his part in their development, the youth team have had a very good season."
Orient currently sit seventh in the League One table.
