Edinburgh have signed elite development players Hamish Watson, George Turner and Jamie Farndale on extended senior contracts.
The trio of Scots have come through the club's academy and are part of coach Alan Solomons' long-term plan for Edinburgh.
Young Scottish centres Michael Tait, Chris Dean and winger Damien Hoyland will also join the club this summer.
"This development is critical to the future of Edinburgh," said Solomons.
"The key is to understand our vision, and that vision is to build a sustainable club through the medium of our academy of young Scottish players, who are introduced into an experienced and strong team that will aid and abet their development.
"At this point, this amounts to six new, young Scottish players that have been lined up for next season's senior squad, which is very positive."
Watson plays at back-row, Turner is a hooker and Farndale is a winger.
"Hamish is a terrific young talent. He hasn't had a lot of opportunities this year but he will make his mark next year," added Solomons.
"George is a dynamic, explosive player and Jamie is another fine athlete."