Updated: November 3, 2021
| Unit | Depot | Formation | Operator | Notes |
| Class 321/3 - electric multiple units (freight) | ||||
| 321334 | TBC | Converted (07/21) | ||
| Class 326 - electric multiple units (freight) | ||||
| 326001 | Rail Operations Group | To be converted from 319xxx | ||
| 326002 | Rail Operations Group | To be converted from 319xxx | ||
| 326003 | Rail Operations Group | To be converted from 319xxx | ||
| 326004 | Rail Operations Group | To be converted from 319xxx | ||
| 326005 | Rail Operations Group | To be converted from 319xxx | ||
| 326006 | Rail Operations Group | To be converted from 319xxx | ||
| 326007 | Rail Operations Group | To be converted from 319xxx | ||
| 326008 | Rail Operations Group | To be converted from 319xxx | ||
| 326009 | Rail Operations Group | To be converted from 319xxx | ||
| Class 600 - hydrogen multiple units | ||||
| 600xxx | 78130-71990-78279 | To be converted from 321448 | ||
| Class 768 - dual-voltage bi-mode multiple units (freight) | ||||
| 768001 | 77309-62900-71781-77308 | Rail Operations Group | Converted from 319010 (06/21) | |
| 768002 | 77307-62899-71780-77306 | Rail Operations Group | Converted from 319009 (08/21) | |
| 768003 | Rail Operations Group | To be converted from 319xxx | ||
| 768004 | Rail Operations Group | To be converted from 319xxx | ||
| 768005 | Rail Operations Group | To be converted from 319xxx | ||
| 768006 | Rail Operations Group | To be converted from 319xxx | ||
| 768007 | Rail Operations Group | To be converted from 319xxx | ||
| 768008 | Rail Operations Group | To be converted from 319xxx | ||
| 768009 | Rail Operations Group | To be converted from 319xxx | ||
| 768010 | Rail Operations Group | To be converted from 319xxx | ||
| Class 769/0 - bi-mode multiple units | ||||
| 769002 | CF | 77293-62892-71773-77292 | TfW Rail | Converted from 319002 (03/19) |
| 769003 | CF | 77295-62893-71774-77294 | TfW Rail | Converted from 319003 (03/20) |
| 769006 | CF | 77301-62896-71777-77300 | TfW Rail | Converted from 319006 (12/19) |
| 769007 | CF | 77303-62897-71778-77302 | TfW Rail | Converted from 319007 (03/20) |
| 769008 | CF | 77305-62898-71779-77304 | TfW Rail | Converted from 319008 (05/19) |
| Class 769/4 - bi-mode multiple units | ||||
| 769421 | CF | 77331-62911-71792-77330 | TfW Rail | Converted from 319421 (07/20) |
| 769424 | AN | 77377-62914-71795-77336 | Northern Trains | Converted from 319424 (01/19) |
| 769426 | CF | 77341-62916-71797-77340 | TfW Rail | Converted from 319426 (TBC) |
| 769431 | AN | 77351-62921-71802-77350 | Northern Trains | Converted from 319431 (12/18) |
| 769434 | AN | 77357-62924-71805-77356 | Northern Trains | Converted from 319434 (09/18) |
| 769442 | AN | 77373-62932-71813-77372 | Northern Trains | Converted from 319442 (10/19) |
| 769445 | CF | 77379-62935-71816-77378 | TfW Rail | Converted from 319445 (07/20) |
| 769448 | AN | 77433-62962-71867-77432 | Northern Trains | Converted from 319448 (04/20) |
| 769450 | AN | 77437-62964-71869-77436 | Northern Trains | Converted from 319450 (06/19) |
| 769452 | CF | 77441-62966-71871-77440 | TfW Rail | Converted from 319452 (06/20) |
| 769456 | AN | 77449-62970-71875-77448 | Northern Trains | Converted from 319456 (10/18) |
| 769458 | AN | 77453-62972-71877-77452 | Northern Trains | Converted from 319458 (01/20) |
| Class 769/9 - dual-voltage bi-mode multiple units | ||||
| 769922 | 77333-62912-71793-77332 | Great Western Railway | Converted from 319422 (06/21) | |
| 769923 | 77335-62913-71794-77334 | Great Western Railway | Converted from 319423 (10/21) | |
| 769925 | 77339-62915-71796-77338 | Great Western Railway | Converted from 319425 (04/21) | |
| 769927 | 77343-62917-71798-77342 | Great Western Railway | Converted from 319427 (08/21) | |
| 769928 | 77345-62918-71799-77344 | Great Western Railway | Converted from 319428 (02/20) | |
| 769930 | RG | 77349-62920-71801-77348 | Great Western Railway | Converted from 319430 (12/20) |
| 769932 | 77353-62922-71803-77352 | Great Western Railway | Converted from 319432 (05/21) | |
| 769935 | 77359-62925-71806-77358 | Great Western Railway | Converted from 319435 (07/21) | |
| 769936 | 77361-62926-71807-77360 | Great Western Railway | Converted from 319436 (10/20) | |
| 769937 | RG | 77363-62927-71808-77362 | Great Western Railway | Converted from 319437 (02/21) |
| 769938 | 77365-62928-71809-77364 | Great Western Railway | Converted from 319438 (03/21) | |
| 769939 | 77367-62929-71810-77366 | Great Western Railway | Converted from 319439 (07/21) | |
| 769940 | 77369-62930-71811-77368 | Great Western Railway | Converted from 319440 (07/21) | |
| 769943 | RG | 77375-62933-71814-77374 | Great Western Railway | Converted from 319443 (08/20) |
| 769944 | 77377-62934-71815-77376 | Great Western Railway | Converted from 319444 (01/21) | |
| 769946 | RG | 77381-62936-71817-77380 | Great Western Railway | Converted from 319446 (12/20) |
| 769947 | 77431-62961-71866-77430 | Great Western Railway | Converted from 319447 (07/21) | |
| 769949 | 77435-62963-71868-77434 | Great Western Railway | Converted from 319449 (04/21) | |
| 769959 | RG | 77453-62972-71877-77452 | Great Western Railway | Converted from 319459 (02/21) |
| Class 799/0 - prototype hydrogen multiple unit | ||||
| 799001 | 77291-62891-71772-77290 | Porterbrook | Converted from 319001 (06/19) | |
| Class 799/2 - prototype hydrogen multiple unit | ||||
| 799201 | 77975-63065-71951-77976 | Porterbrook | Converted from 319382 (11/21) | |
