Many early locomotive works disappeared as railways merged or they became simply motive power depots. Some, like Bromsgrove, made only one or two new locomotives but, for even the largest, overhaul and repair of the existing fleet was the main activity.
See also List of locomotive builders and List of early British private locomotive manufacturers
Year Works location Railway company 1826 Shildon Stockton and Darlington Railway 1830 Edge Hill Liverpool and Manchester Railway 1831 Gateshead railway works Newcastle and Darlington Railway 1838 Wolverton London and Birmingham Railway 1839 Edge Hill Grand Junction Railway 1840 Bromsgrove Birmingham and Gloucester Railway 1840 Brighton London and Brighton Railway 1840 Derby North Midland Railway 1841 Crewe Grand Junction Railway 1842 Cowlairs Edinburgh and Glasgow Railway 1842 Longsight railway works Manchester and Birmingham Railway 1843 Nine Elms London and South Western Railway 1844 Darlington North Eastern Railway 1845 Wolverton London and North Western Railway 1845 Ashford South Eastern and Chatham Railway 1846 Swindon Great Western Railway 1846 Greenock Caledonian Railway 1846 Barrow-in-Furness Furness Railway 1847 Miles Platting Lancashire and Yorkshire Railway 1848 Gorton Manchester, Sheffield and Lincolnshire Railway (to Great Central Railway) 1849 Wolverhampton Shrewsbury and Birmingham Railway 1850 Bow North London Railway 1851 Stratford Great Eastern Railway 1853 Earlestown railway works LNWR Formerly Jones and Potts 1853 Doncaster Great Northern Railway 1854 St Rollox (Glasgow) Caledonian Railway 1854 York North Eastern Railway 1856 St. Margarets North British Railway 1856 Cardiff Taff Vale Railway 1857 Kilmarnock Glasgow and South Western Railway 1857 Maryport Maryport and Carlisle Railway 1859 Bristol Great Western Railway 1862 Bury Lancashire and Yorkshire Railway 1862 Highbridge Somerset and Dorset Joint Railway 1868 Stoke North Staffordshire Railway 1869 Longhedge London Chatham and Dover Railway 1869 Lochgorm (Inverness) Highland Railway 1874 Sheffield Great Central Railway 1876 Newton Heath Lancashire and Yorkshire Railway 1889 Horwich Lancashire and Yorkshire Railway 1891 Eastleigh London and South Western Railway 1897 Melton Constable Midland and Great Northern Joint Railway 1899 Caerphilly Rhymney Railway 1909 Inverurie Great North of Scotland Railway
Sources Atkins, P., (1999) The Golden Age of Steam Locomotive Building, Penrhyn: Atlantic Transport Publications Larkin, E.J., Larkin, J.G., (1988) The Railway Workshops of Great Britain 1823–1986, Macmillan Press