George Perkins and Ehize Ehizode are all set to feature for Bristol next season.
Perkins, 21, was a part of the U20 World Cup winning England team last year and will make a switch from Saracens to Bristol while highly-rated lock Ehizode is a product of Wasps academy.
Bristol's acting head coach Mark Tainton has high regards for the duo and believes they can be a boost to the Ashton Gate outfit.
"George has blistering pace and plenty of experience, having represented England through the age grades and Saracens in the Premiership.
"And Ehize is coming to the west country for a fresh challenge. He is a physical specimen with all the attributes to be a top-quality lock if he continues to work hard and show the right attitude in training."
Bristol are currently in danger of a relegation from the Aviva Premiership after managing just three wins from 18 games this season.