| Player | Position | Former club | Club joined | League | Nationality |
|---|---|---|---|---|---|
| Dan Robson | Scrum-half | Pau |  |
Premiership |  English |
| Mako Vunipola | Prop | Vannes | Leicester | Premiership | English |
| Harry Wells | Lock | Leicester | Bristol | Premiership | English |
| Nicky Smith | Prop | Leicester | Sale | Premiership |  Welsh |
| Jean Kleyn | Lock | Munster | |
Premiership |  Irish |
| Joe Joyce | Lock | Connacht | |
Premiership | Irish |
| Daniel du Preez | Back row | Sale | Bath | Premiership |  South African |
| Zack Henry | Fly-half | Stade Français | Newcastle | Premiership | English |
| Tom West | Prop | Northampton | Newcastle | Premiership | English |
| Jamie Bhatti | Prop |  |
Bath | Premiership |  Scottish |
| George Furbank | Full-back | Northampton |  |
Premiership | English |
| George Turner | Hooker | |
Newcastle | Premiership | Scottish |
| Hoskins Sotutu | Back row |  |
Newcastle | Premiership |  New Zealander |
| Marco Fepulea'i | Prop | Bayonne | |
Premiership |  Samoan |
| Werner Kok | Centre | Ulster | Newcastle | Premiership | South African |
| Elliot Millar-Mills | Prop | Northampton | Newcastle | Premiership | Scottish |
| Cameron Jordan | Lock | |
Newcastle | Premiership | English |
| Rusiate Tuima | Back row | Exeter | Newcastle | Premiership | English |
| Jordan Els | Prop | |
Northampton | Premiership | South African |
| Max Hicks | Lock | USAP | Newcastle | Premiership | New Zealander |
| Zuriel Togiatama | Hooker |  |
Newcastle | Premiership |  Fijian |
| Raffi Quirke | Scrum-half | Sale | Newcastle | Premiership | English |
| Jac Morgan | Back row |  |
|
Premiership | Welsh |
| George Martin | Lock | Leicester |  |
Premiership | English |
| Franco Molina | Lock |  |
Newcastle | Premiership |  Argentinian |
| Christ Tshiunza | Back row | Exeter | Sale | Premiership | Welsh |
| Tobi Wilson | Full-back | Ealing Trailfinders | Bristol | Premiership | English |
| Eliot Salt | Prop | Coventry | |
Premiership | English |
| Obinna Nkwocha | Lock | Worcester | Exeter | Premiership | English |
| Carwyn Tuipulotu | Back row | Pau | Exeter | Premiership | Welsh |
| Archie McArthur | Prop | |
Exeter | Premiership | English |
| Nika Abuladze | Prop | Montpellier | Exeter | Premiership |  Georgian |
| Ethan Staddon | Lock | Bath | Bristol | Premiership | English |
| Benjamin Elizalde | Full-back | Bristol | Newcastle | Premiership | Argentinian |
| Sol Moody | Hooker | Cornish Pirates | Bristol | Premiership | English |
| Jack Doorey-Palmer | Hooker |  |
Leicester | Premiership | English |
| Louie Sinclair | Fly-half | Cornish Pirates | Bristol | Premiership | English |
| Francisco Moreno | Prop |  |
Newcastle | Premiership | Argentinian |
| Cai Gealy | Scrum-half | Hartpury | Bristol | Premiership | Welsh |
| Akenzua All Kareen Abdul-Khalik | Back row | Worcester | Bristol | Premiership | English |
| Malik Faissal | Wing | Zebre | Northampton | Premiership |  Italian |
| Freddie Ogden-Metherell | Lock | Hartpury | |
Premiership | English |
| Finlay Cunnison | Centre |  |
|
Premiership | English |
| Diamond Ayiehfor | Prop | Nottingham | Leicester | Premiership | English |