Grylls & Co.
- List of British railway-owned locomotive builders
- List of early British private locomotive manufacturers
- Alan Keef
- Andrew Barclay Sons & Co.
- Armstrong Whitworth
- Aveling and Porter
- Avonside Engine Company
- Avonside Locomotive Works
- Ernest E. Baguley
- Bassett-Lowke
- William Beardmore and Company
- Benjamin Hick
- Benjamin Hick and Sons
- Beyer, Peacock and Company
- Birmingham Railway Carriage and Wagon Company
- Black, Hawthorn & Co
- Boston Lodge
- Bowesfield Works
- British Electric Vehicles
- British Thomson-Houston
- Bromsgrove railway works
- Brush Traction
- Bury, Curtis, and Kennedy
- Charles Burrell & Sons
- Clayton Equipment Company
- Cowlairs railway works
- Crewe Works
- Day, Summers and Company
- De Winton
- Derby Works
- Dick, Kerr & Co.
- Dodds, Isaac and Son
- Doncaster Works
- Drewry Car Co.
- Duffield Bank Railway
- Dübs and Company
- E. B. Wilson and Company
- English Electric
- Exmoor Steam Railway
- F. C. Hibberd & Co.
- Fenton, Murray and Jackson
- Fletcher, Jennings & Co.
- Foster, Rastrick and Company
- George England
- George Forrester and Company
- Gilkes Wilson and Company
- Gloucester Railway Carriage and Wagon Company
- Gorton Foundry
- Greenbat
- Greenwood & Batley
- Greenwood and Batley
- Grylls & Co.
- Haigh Foundry
- Hawthorn Leslie and Company
- Hudswell Clarke
- Hugh Phillips Engineering
- Hunslet Engine Company
- John Fowler & Co.
- Jones, Turner and Evans
- Kerr Stuart
- Kitson & Co.
- Leeds Forge Company
- R A Lister and Company
- Manning Wardle
- Mather, Dixon and Company
- Melton Constable Railway Works
- Merryweather & Sons
- Metro Cammell
- Metropolitan-Vickers
- Midland Railway Carriage and Wagon Company
- Motor Rail
- Muir-Hill
- Nasmyth, Gaskell and Company
- Neilson and Company
- North British Locomotive Company
- Peckett and Sons
- R and W Hawthorn
- R. B. Longridge and Company
- Richard Hornsby & Sons
- Robert Hudson Ltd
- Robert Stephenson and Company
- Robert Stephenson and Hawthorns
- Rothwell, Hick and Rothwell
- Sentinel Waggon Works
- Sharp Stewart and Company
- Sharp, Roberts and Company
- Shepherd and Todd
- St. Rollox railway works
- Stark and Fulton
- Stephen Lewin
- Swindon Works
- TMA Engineering
- Thomas Green & Son
- Thomas Hill (Rotherham) Ltd
- Thompson & Cole
- Tulk and Ley
- Vulcan Foundry
- W. G. Bagnall
- William Fairbairn & Sons
- William and Alfred Kitching
- Wingrove & Rogers
- Winson Engineering
- Yorkshire Engine Company