| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 1 | 0-6-0T | 4'-8½" | National Coal Board | Watercress Line (Mid Hants Railway), Alresford, ENG | operational | Hunslet Engine Co. #3781, 1952 | Named Thomas. Converted from an 0-6-0ST type in 1994. | |
| 0-6-0ST | 4'-8½" | National Coal Board | Foxfield Railway, Blythe Bridge, ENG | operational | Hunslet Engine Co. #3694, 1950 | Named Whiston. | ||
| 2 | 0-6-0ST | 4'-8½" | National Coal Board | Foxfield Railway, Blythe Bridge, ENG | operational | W. G. Bagnall #3059, 1954 | Named Florence. | |
| 19 | J94 | 0-6-0ST | 4'-8½" | National Coal Board | Bo'ness & Kinneil Railway, Bo'ness, SCT | operational | Hunslet Engine Co. #3518, 1954 | |
| 1 | 0-6-0T | 4'-8½" | National Coal Board | Bo'ness & Kinneil Railway, Bo'ness, SCT | operational | Neilson Reid & Co. #5710, 1902 | Named Lord Roberts. | |
| 1 | 0-6-0ST | 4'-8½" | National Coal Board | Chasewater Railway, Burntwood, ENG | operational | Hunslet Engine Co. #3783, 1953 | Named Darfield. | |
| 47 | 0-6-0ST | 4'-8½" | National Coal Board | Embsay & Bolton Abbey Steam Railway, Embsay, ENG | operational | Robert Stephenson & Hawthorns #7849, 1955 | Named Moorbarrow. | |
| 22 | 0-4-0ST | 4'-8½" | National Coal Board | Bowes Railway, Gateshead, ENG | operational | Andrew Barclay Sons & Co. #2274, 1949 | ||
| 7754 | 5700 | 0-6-0PT | 4'-8½" | GWR (National Coal Board) | Llangollen Railway, Llangollen, WAL | operational | North British Locomotive Co. #24042, 12/1930 | Donated by the National Coal Board to the National Museum Cardiff, Cardiff, WAL on a permanent loan. Restored to operation on August 20, 1993. Previously operated in 2003. Restored back to operation on September 23, 2023. |
| 3806 | 0-6-0ST | 4'-8½" | National Coal Board | Dean Forest Railway, Lydney, ENG | operational | Hunslet Engine Co. #3806, 1953 | Named Wilbert. | |
| 68070 (3840) | 0-6-0ST | 4'-8½" | BR (National Coal Board) | Garw Valley Railway, Pontycymer, WAL | operational | Hunslet Engine Co. #3840, 1956 | Named Pamela. | |
| 6 | 0-4-0ST | 4'-8½" | National Coal Board | Ribble Steam Railway, Preston, ENG | operational | Andrew Barclay Sons & Co. #2261, 1949 | Named Fife Flyer. | |
| 66 | 0-6-0ST | 4'-8½" | National Coal Board | Buckinghamshire Railway Centre, Quainton, ENG | operational | Hunslet Engine Co. #3890, 1964 | Last commercial standard gauge steam locomotive built in the UK. | |
| 10 | 0-4-0ST | 4'-8½" | National Coal Board | Scottish Industrial Railway Centre, Waterside, SCT | operational | Andrew Barclay Sons & Co. #2244, 1947 | ||
| 25 | 0-6-0ST | 4'-8½" | National Coal Board | Scottish Industrial Railway Centre, Waterside, SCT | operational | Andrew Barclay Sons & Co. #2358, 1954 |