Props Chris Coleman, Josh Reynolds and Luke Yendle have signed contract extensions with Dragons.
Wing Rio Dyer, 22, and centre Aneurin Owen, 21, have also committed their futures to the south east Wales region.
Former Wales Under-20s players Coleman, Reynolds, Dyer and Owen are, like Yendle, products of the Dragons’ academy system.
Tight-head Coleman, 23, and Dyer made their Dragons debuts in 2018, a year after Reynolds, also 23.
Tight-head Yendle, 21, who has played for Wales Under-19s, is on loan at English Championship side Jersey having made his Dragons debut in 2020.
Dragons director of rugby Dean Ryan said: “We’re pleased that Chris, Josh and Luke will continue to develop in our environment and look forward to seeing that progress in the comings seasons.”
Ryan said Dyer is “undoubtedly an exciting young talent who will keep working hard to earn opportunities”, and said Dragons are “excited to develop” Owen – who made his debut last season – in the years ahead.
The region has not specified the duration of the new deals.