| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 7 | 0-4-2ST | 27" | Corris Railway | Corris Railway, Corris, WAL | operational | Winson Engineering #17, 2005 | Winson Engineering closed in 2001. Completed by Drayton Designs. | |
| 2 | 0-4-0WT | 27" | Talyllyn Railway | Talyllyn Railway, Tywyn, WAL | operational | Fletcher, Jennings & Co. #63, 1866 | Named Dolgoch. | |
| 6 | 0-4-0WT | 27" | Airservice Construction Corps | Talyllyn Railway, Tywyn, WAL | operational | Andrew Barclay Sons & Co. #1431, 1918 | Named Douglas. | |
| 1 | 0-4-2ST | 27" | Talyllyn Railway | Talyllyn Railway, Tywyn, WAL | operational | Fletcher, Jennings & Co. #42, 1864 | Named Talyllyn. | |
| 4 | 0-4-2ST | 27" | Corris Railway | Talyllyn Railway, Tywyn, WAL | operational | Kerr, Stuart & Co. (Stoke on Trent) #4047, 1921 | Named Edward Thomas. | |
| 7 | 0-4-2T | 27" | Talyllyn Railway | Talyllyn Railway, Tywyn, WAL | operational | Talyllyn Railway Pendre Works, 1991 | Named Tom Rolt. |