North Eastern Railway

Durham and Sunderland Railway

by the Newcastle and Darlington Junction Railway Act 1846 (9 & 10 Vict. c. cccxxx):

Pontop and South Shields Railway

by the Stanhope and Tyne Railroad Company (Dissolution) Act 1842 (5 & 6 Vict. c. xxvii):

Stanhope and Tyne Railway

by the York, Newcastle and Berwick Railways Act 1847 (10 & 11 Vict. c. cxxxiii)

Newcastle and Berwick Railway

by the Newcastle and Berwick Railway Act 1845 (8 & 9 Vict. c. clxiii)

Newcastle and North Shields Railway

by the Great North of England Railway Company's Purchase Amendment Act 1850 (13 & 14 Vict. c. liii)

Great North of England Railway

York and North Midland Railway

by the Leeds and Selby Railway Act 1844 (7 & 8 Vict. c. xxi)

Leeds and Selby Railway (1844)

by the Whitby and Pickering Railway Act 1845 (8 & 9 Vict. c. lvii)

Whitby and Pickering Railway

by the York and North Midland (East and West Yorkshire Railway Amalgamation) Act 1852 (15 & 16 Vict. c. lvii)

East and West Yorkshire Junction Railway

Leeds Northern Railway

was Leeds and Thirsk Railway (1845–1849)

Malton and Driffield Junction Railway

1857

by the North-eastern Railway Company's (Lanchester Valley Branch) Act 1857 (20 & 21 Vict. c. xlvi):

Dearness Valley Railway

by the North-eastern Railway Company's (Hartlepool Dock and Railway Amalgamation) Act 1857 (20 & 21 Vict. c. xxxiii):

Hartlepool Dock and Railway

1859

by the North Eastern Railway (Bedale and Leyburn and Rosedale Railways Amalgamation) Act 1859 (22 & 23 Vict. c. xci):

North Yorkshire and Cleveland Railway

Bedale and Leyburn Railway

1862

by the North-eastern Railway Company's (Hull and Holderness Amalgamation) Act 1862 (25 & 26 Vict. c. cxx)

Hull and Holderness Railway

by the North-eastern and Carlisle Railways Amalgamation Act 1862 (25 & 26 Vict. c. cxlv)

Newcastle and Carlisle Railway

Blaydon, Gateshead and Hebburn Railway (1839)

1863

by the North-eastern and Stockton and Darlington Railways Amalgamation Act 1863 (26 & 27 Vict. c. cxxii):

Stockton and Darlington Railway

by the Stockton and Darlington Railway Amalgamation Act 1858 (21 & 22 Vict. c. cxvi):

Darlington and Barnard Castle Railway (1858)

Middlesbrough and Guisborough Railway (1858)

Middlesbrough and Redcar Railway (1858)

Wear Valley Railway (1858)

by the Wear Valley Railway Act 1847 (10 & 11 Vict. c. ccxcii):

Bishop Auckland and Weardale Railway (1847)

by the Stockton and Darlington Railway (Amalgamation) Act 1862 (25 & 26 Vict. c. cvi):

Eden Valley Railway (1862)

Frosterly and Stanhope Railway (1862)

South Durham and Lancashire Union Railway (1862)

1865

by the North Eastern, West Hartlepool and Cleveland Railways Amalgamation Act 1865 (28 & 29 Vict. c. ccclxviii):

Cleveland Railway

West Hartlepool Harbour and Railway

by the West Hartlepool Harbour and Railway Act 1852 (15 & 16 Vict. c. cxlii):

Clarence Railway (1853)

Stockton and Hartlepool Railway (1853)

1866

by the North-eastern, Hull, and Hornsea Railway Amalgamation Act 1866 (29 & 30 Vict. c. clxxxvii):

Hull and Hornsea Railway

1870

by the North-eastern Railway Company's (Leyburn and Hawes Branch, &c.) Act 1870 (33 & 34 Vict. c. cv):

West Durham Railway

1872

Hull and Selby Railway

1874

by the North-eastern Railway (Blyth and Tyne Transfer) Act 1874 (37 & 38 Vict. c. cxcii):

Blyth and Tyne Railway

1876

by the North Eastern Railway Company's Act 1876 (39 & 40 Vict. c. cii):

Hexham and Allendale Railway

Leeds, Castleford and Pontefract Junction Railway

1882

by the North Eastern Railway (Additional Powers) Act 1882 (45 & 46 Vict. c. l):

Tees Valley Railway

1883

by the North Eastern Railway (General) Act 1883 (46 & 47 Vict. c. lxiii):

Hylton, Southwick and Monkwearmouth Railway

Scotswood, Newburn and Wylam Railway

1889

by the North-eastern Railway Act 1889 (52 & 53 Vict. c. lx):

Whitby, Redcar and Middlesbrough Union Railway

1894

by the North Eastern Railway Act 1894 (57 & 58 Vict. c. cliii):

Wear Valley Extension Railway

1898

by the North Eastern Railway Act 1898 (61 & 62 Vict. c. cxcvii):

Scarborough and Whitby Railway

1900

by the North Eastern Railway Act 1900 (63 & 64 Vict. c. clxii):

Cawood, Wistow and Selby Light Railway

Londonderry (Seaham to Sunderland) Railway

Merrybent and Darlington Railway

1914

by the North Eastern Railway Act 1914 (4 & 5 Geo. 5. c. xcv):

Scarborough, Bridlington and West Riding Junction Railway

1922

Hull and Barnsley Railway

1853

by the North Eastern, West Hartlepool and Cleveland Railways Amalgamation Act 1865 (28 & 29 Vict. c. ccclxviii):

West Hartlepool Harbour and Railway

by the West Hartlepool Harbour and Railway Act 1852 (15 & 16 Vict. c. cxlii):

Hartlepool West Harbour and Dock

1857

by the North-eastern Railway Company's (Hartlepool Dock and Railway Amalgamation) Act 1857 (20 & 21 Vict. c. xxxiii):

Hartlepool Dock and Railway

1893

by the North Eastern Railway (Hull Docks) Act 1893 (56 & 57 Vict. c. cxcviii):

Hull Dock Company

On 25 October 1887, a freight train overran signals at Chevington, Northumberland and was in a head-on collision with a locomotive that was shunting. That locomotive and its wagons were pushed into a stationary passenger train.

In 1890, a freight train was derailed on the Redheugh Incline, Gateshead, County Durham.

On 2 November 1892, an express passenger train was in a rear-end collision with a freight train at Thirsk, Yorkshire due to errors by the driver of the freight train and a signalman. The latter had fallen asleep on the night shift after spending his rest day searching for medical help for his infant daughter. Ten people were killed and 43 were injured.

On 4 November 1894, a sleeping car train overran signals and collided with a freight train that was being shunted at Castle Hills, Yorkshire. One person was killed.

On 5 November 1900, a freight train ran away and was derailed by trap points at Lingdale Junction, Yorkshire.

On 4 July 1901, a freight train was unable to stop and ran off the end of a siding at Harperley, County Durham.

On 27 June 1905, a freight train was derailed at Wallsend, Northumberland.

On 24 November 1906, a passenger train overran signals and ran into the rear of a freight train at Ulleskelf, Yorkshire.

On 26 March 1907, a passenger train was derailed by heat buckled track at Felling, County Durham (now Tyne and Wear). Two people were killed and six were seriously injured. The accident could have been prevented as the signalman had been warned of the buckle by a member of the public but refused to heed the warning.

On 28 August 1907, a freight train overran signals and was derailed at Goswick, Northumberland. Two people were killed and one was seriously injured.

On 8 October 1908, an overloaded freight train ran away and crashed into goods wagons at Masham, Yorkshire.

On 29 May 1909, a freight train was derailed at Skinningrove, Yorkshire due to subsidence of the trackbed.

On 8 August 1909, a freight train was derailed at Hartley, Cumberland due to the track buckling in the heat of the sun.

On 15 November 1910, an express freight train overran signals and was in a rear-end collision with a freight train at Darlington, County Durham.

On 15 December 1911, a freight train was derailed at Lartington, Yorkshire due to the driver braking too sharply. During recovery operations, a rail-mounted crane overturned.

On 17 December 1915, a passenger train collided with a light engine at St Bede's Junction, Tyne Dock. The light engine had been overlooked by the signalman. An empty carriage train travelling in the opposite direction then ran into the wreckage. The wooden carriages were gas-lit and caught fire; 17 people died and 81 were injured.

On 3 March 1916, an empty stock train was in a rear-end collision with an electric multiple unit at Manors East station, Newcastle upon Tyne, Northumberland. Forty-nine people were injured.

On 15 September 1917, a set of carriages ran away from Catterick Camp and was derailed. Three people were killed.

On 11 August 1918, the carriage sheds at Heaton, Newcastle were destroyed by fire, as were 34 carriages forming a number of NER electric units.

On 14 February 1920, two freight trains were involved in a head-on collision at Skelton, Yorkshire.

On 31 March 1920, a passenger train was derailed at York station.

On 22 October 1921, Petrol Inspection Saloon No. 3768 was destroyed by fire at York station.