Use Ctrl+F (Command+F on a MAC) to open a search box to find text on this page.
Company Name |
Location |
Area |
Year |
Class |
Box No |
Company No |
| Abbey Hulton (Stoke on Trent) Colliery Co. Ltd | Milton | Staffordshire | 1912 | BT31 | 13871 | 121423 |
| Aber & Ynisawdre Coal & Coke Co. Ltd | Ogmore Vale | Glamorganshire | 1874 | BT31 | 1981 | 8465 |
| Aber Colliery Co. Ltd | Ogmore Vale | Glamorganshire | 1889 | BT31 | 4527 | 29615 |
| Aber Rhondda Coal Co. Ltd | Cymmer | Glamorganshire | 1886 | BT31 | 3760 | 23446 |
| Aber Rhondda Colliery Co. Ltd | Cymmer | Glamorganshire | 1882 | BT31 | 2932 | 16362 |
| Aberbeeg Collieries Ltd | Crumlin | Monmouthshire | 1924 | BT31 | 36928 | 194786 |
| Aberbeeg Collieries Ltd | Crumlin | Monmouthshire | 1876 | BT31 | 2205 | 10372 |
| Abercarn Coal Co. Ltd | Abercarn | Monmouthshire | 1883 | BT31 | 3102 | 17783 |
| Aberdare Merthyr Collieries Co. Ltd | Aberdare | Glamorganshire | 1891 | BT31 | 5099 | 34338 |
| Aberdare Merthyr Colliery Co. Ltd | Hirwaun | Glamorganshire | 1886 | BT31 | 3703 | 23031 |
| Aberdare Merthyr Steam Coal Co. Ltd | Hirwaun | Glamorganshire | 1860 | BT31 | 450 | 1740 |
| Aberdare Merthyr Steam Coal Colliery Co. Ltd | Hirwaun | Glamorganshire | 1873 | BT31 | 1801 | 6881 |
| Aberdare Rhondda Steam Coal Co. Ltd | Aberdare | Glamorganshire | 1871 | BT31 | 1611 | 5436 |
| Abernant Anthracite Collieries Ltd | Abernant | Glamorganshire | 1906 | BT31 | 11509 | 88682 |
| Abernant Coal Co. Ltd | Abernant | Glamorganshire | 1905 | BT31 | 17538 | 85626 |
| Aberpergwm Collieries Co. Ltd | Glyn Neath | Glamorganshire | 1911 | BT31 | 20368 | 119213 |
| Abertillery & Talywain Red Ash Collieries Co. Ltd | Abertillery | Monmouthshire | 1900 | BT31 | 9235 | 68556 |
| Abram Coal Co. Ltd | Bickershaw | Lancashire | 1892 | BT31 | 31272 | 35998 |
| Achddu Colliery Co. Ltd | Burry Port | Carmarthenshire | 1902 | BT31 | 9929 | 74038 |
| Acklington Coal Co. Ltd | Acklington | Northumberland | 1899 | BT31 | 8299 | 60269 |
| Ackton Hall & Featherstone Manor Collieries Co. Ltd | Featherstone | Yorkshire | 1886 | BT31 | 3700 | 23010 |
| Ackworth Coal Syndicate Ltd | Ackworth | Yorkshire | 1906 | BT31 | 14414 | 87676 |
| Acme Coal Co. Ltd | 1908 | BT31 | 12303 | 97011 | ||
| Acol Collieries (Natal) Ltd | South Africa | 1897 | BT31 | 7194 | 50863 | |
| Adare Coal & Coke Co. Ltd | Tondu | Glamorganshire | 1895 | BT31 | 6597 | 46407 |
| Adisham Colliery Ltd | Adisham | Kent | 1913 | BT31 | 21543 | 129705 |
| Afon Collieries Ltd | 1908 | BT31 | 18372 | 97072 | ||
| African Coal & Exploration Co. Ltd | Africa | 1894 | BT31 | 6024 | 42552 | |
| African Coal & Trading Co. Ltd | Africa | 1919 | BT31 | 24960 | 158236 | |
| African Freehold Coal Lands Ltd | Africa | 1907 | BT31 | 18091 | 93295 | |
| African Ports Coaling & Lighterage Syndicate Ltd | Africa | 1897 | BT31 | 7437 | 52839 | |
| Airedale Collieries Ltd | Normanton | Yorkshire | 1919 | BT31 | 36907 | 153299 |
| Aketon Colliery Co. Ltd | 1866 | BT31 | 1220 | 2808C | ||
| Alabama Coal Iron Land & Colonization Co. Ltd | U.S.A. | 1881 | BT31 | 2853 | 15703 | |
| Alabama Coal Iron Land & Colonization Co. Ltd | U.S.A. | 1882 | BT31 | 30970 | 16276 | |
| Alaska Steam Coal & Petroleum Syndicate Ltd | Alaska | U.S.A. | 1900 | BT31 | 16427 | 66460 |
| Albert Brick & Coal Co. Ltd | Ruabon | Denbighshire | 1878 | BT31 | 2449 | 12454 |
| Albertan (Canadian) Coal & Coke Co. Ltd | Canada | 1902 | BT31 | 10054 | 75202 | |
| Albion Steam Coal Co. Ltd | Pontypridd | Glamorganshire | 1891 | BT31 | 31242 | 33695 |
| Alcester Gas Light Coal & Coke Co. Ltd | 1895 | BT31 | 34377 | 45719 | ||
| Alderbank Colliery Co. Ltd | Wardle | Lancashire | 1909 | BT31 | 18966 | 104497 |
| Aldridge Colliery Co. Ltd | Aldridge | Staffordshire | 1874 | BT31 | 14474 | 8076 |
| Alford Coal Co. Ltd | 1877 | BT31 | 14570 | 11438 | ||
| Alliance Co. operative Coal Co. Ltd | 1873 | BT31 | 1864 | 7350 | ||
| Alliance Coal Co. Ltd | 1876 | BT31 | 2257 | 10781 | ||
| Alliance Colliery Co. Ltd | 1882 | BT31 | 2987 | 16802 | ||
| Allied Coal Consumers Co. operative Union Ltd | 1916 | BT31 | 23310 | 144164 | ||
| Alltami Colliery Co. Ltd | Buckley | Flintshire | 1873 | BT31 | 1925 | 7940 |
| Alltygrug Anthracite Colliery Ltd | 1911 | BT31 | 19996 | 115643 | ||
| Alma Colliery Co. Ltd | 1903 | BT31 | 10136 | 75967 | ||
| Alnwick Coal & Lime Co. Ltd | Alnwick | Northumberland | 1872 | BT31 | 1794 | 6828 |
| Alsace Coal Co. Ltd | 1896 | BT31 | 6837 | 48105 | ||
| Altham Colliery Co. Ltd | Accrington | Lancashire | 1898 | BT31 | 15994 | 57563 |
| Alton Coal Coke & Iron Co. Ltd | 1873 | BT31 | 1887 | 7545 | ||
| Alun Hill Colliery Ltd | 1893 | BT31 | 5535 | 38471 | ||
| Alvecote Colliery Co. Ltd | Tamworth | Worcestershire | 1865 | BT31 | 1071 | 1949C |
| Alyn Bank Coal & Cannel Co. Ltd | Padeswood | Flintshire | 1879 | BT31 | 2540 | 13192 |
| Alyn Bank Colliery Co. Ltd | Padeswood | Flintshire | 1919 | BT31 | 24788 | 156747 |
| Alyn Bank United Colliery Co. Ltd | Padeswood | Flintshire | 1876 | BT31 | 2179 | 10186 |
| Amalgamated British Coal Companies Ltd | 1923 | BT31 | 27700 | 187281 | ||
| Amalgamated Denaby Collieries Ltd | Denaby | Yorkshire | 1936 | BT31 | 38534 | 313935 |
| Ambergate Coal Fire Clay & Brick Co. Ltd | 1875 | BT31 | 2154 | 9990 | ||
| Ambergate Colliery Co. Ltd | 1915 | BT31 | 32202 | 139429 | ||
| Amble Coal Co. Ltd | 1893 | BT31 | 5723 | 40029 | ||
| Amman (Aberdare) Colliery Co. Ltd | 1861 | BT31 | 599 | 2497 | ||
| Amman Anthracite Collieries Ltd | Brynamman | Glamorganshire | 1904 | BT31 | 31905 | 82225 |
| Amman Valley Collieries Ltd | 1910 | BT31 | 13339 | 111078 | ||
| Ammanford Colliery Co. Ltd | Ammanford | Carmarthenshire | 1927 | BT31 | 32878 | 225879 |
| Ammanford Colliery Co. Ltd | Ammanford | Carmarthenshire | 1890 | BT31 | 15102 | 32443 |
| Andaluzia Iron Coal & Steel Works Co. Ltd | 1888 | BT31 | 4031 | 25700 | ||
| Andrews Coal & Mineral Exploitations Ltd | 1912 | BT31 | 32131 | 123489 | ||
| Anglesea Coalfields Ltd | Llangefni | Anglesey | 1912 | BT31 | 13852 | 120930 |
| Anglesea Colliery Co. Ltd | Llangefni | Anglesey | 1863 | BT31 | 807 | 562C |
| Anglian Coal & Lighterage Co. Ltd | 1920 | BT31 | 26344 | 171916 | ||
| Anglican Smelting Reduction & Coal Co. Ltd | 1858 | BT31 | 352 | 1280 | ||
| Anglican Smelting Reduction & Coal Co. Ltd | 1858 | BT31 | 352 | 1280 | ||
| Anglican Smelting Reduction & Coal Co. Ltd | BT41 | 18 | 94 | |||
| Anglo African (Oran) Coaling Co. Ltd | 1913 | BT31 | 32164 | 131460 | ||
| Anglo Bohemian Coal Co. Ltd | 1874 | BT31 | 2005 | 8636 | ||
| Anglo Continental Coal Association Ltd | 1907 | BT31 | 18068 | 93011 | ||
| Anglo Continental Coal Co. Ltd | 1890 | BT31 | 4716 | 31116 | ||
| Anglo Danubian Steam Navigation & Colliery | 1862 | BT31 | 656 | 2767 | ||
| Anglo Egyptian Coal & Iron Co. Ltd | Egypt | 1881 | BT31 | 2800 | 15327 | |
| Anglo French Coal & Fuel Co. Ltd | 1910 | BT31 | 13315 | 110715 | ||
| Anglo French Coal & Steam Derricks Co. Ltd | 1890 | BT31 | 4765 | 31508 | ||
| Anglo German Coal Co. Ltd | 1908 | BT31 | 18614 | 100338 | ||
| Anglo Portuguese Collieries | Portugul | 1907 | BT31 | 18207 | 94865 | |
| Anglo Russian Coal Corporation Ltd | 1914 | BT31 | 22187 | 135041 | ||
| Anglo Sardinian Coal Co. Ltd | 1873 | BT31 | 1875 | 7444 | ||
| Anglo Sardinian Coal Co. Ltd | Italy | 1873 | BT31 | 1875 | 7444 | |
| Anglo Scottish Coal Carbonisation Trust Ltd | 1928 | BT31 | 33009 | 234430 | ||
| Anglo South American Agency & Coaling Co. Ltd | 1912 | BT31 | 20805 | 123234 | ||
| Anglo Spanish Coaling Co. Ltd | 1913 | BT31 | 21630 | 130364 | ||
| Anglo Spanish Coaling Co. Ltd | Spain | 1913 | BT31 | 21630 | 130364 | |
| Anglo Swedish Collieries Co. Ltd | 1873 | BT31 | 1811 | 6956 | ||
| Anglo Swedish Wire Iron & Mount Coal Co. Ltd | 1873 | BT31 | 1825 | 7080 | ||
| Annesley Colliery Co. Ltd | Annesley | Nottinghamshire | 1904 | BT31 | 17293 | 81931 |
| Ansley Hall Coal & Iron Co. Ltd | Nuneaton | Worcestershire | 1873 | BT31 | 37649 | 7627 |
| Anthracite Association for the Promotion of the use of Anthracite Smokeless Coal Ltd | 1892 | BT31 | 5426 | 37446 | ||
| Anthracite Coal Co. Ltd | 1927 | BT31 | 29763 | 219907 | ||
| Anthracite Coal Co. Ltd | 1881 | BT31 | 2773 | 15124 | ||
| Anthrite Coal Marketing Co. Ltd | 1926 | BT31 | 29519 | 214338 | ||
| Anti Breakage Coal Shipping Co. Ltd | 1890 | BT31 | 4920 | 32772 | ||
| Antwerp Coal Co. (London) Ltd | 1919 | BT31 | 36909 | 155480 | ||
| Appleby Magna Colliery Co. Ltd | Appleby Magna | Leicstershire | 1873 | BT31 | 1907 | 7753 |
| Apsey Coal Economizer Co. Ltd | 1908 | BT31 | 12357 | 97645 | ||
| Arbesau & St Francesca Colliery Co. Ltd | 1861 | BT31 | 549 | 2225 | ||
| Arctandria Coal & Iron Co. Ltd | 1898 | BT31 | 8167 | 59046 | ||
| Argentine Petroleum & Coal Co. Ltd | 1888 | BT31 | 4154 | 26818 | ||
| Argentine Petroleum & Coal Co. Ltd | Argentina | 1888 | BT31 | 4154 | 26818 | |
| Argoed Colliery Co. Ltd | 1863 | BT31 | 845 | 760C | ||
| Argoed Hall Coal Co. Ltd | 1868 | BT31 | 1409 | 4048 | ||
| Argosy Shipping & Coal Co. Ltd | 1920 | BT31 | 26000 | 168275 | ||
| Argyll Coal & Cannell Co. Ltd | Argyllshire | 1875 | BT31 | 2114 | 9619 | |
| Arkwright Colliery Co. Ltd | 1902 | BT31 | 10119 | 75796 | ||
| Arlecdon Colliery Co. Ltd | Arlecdon | Cumberland | 1907 | BT31 | 18304 | 96068 |
| Arley Coal & Iron Mining Brick Lime & Coke Co | BT41 | 25 | 129 | |||
| Arley Colliery Company | Coventry | Worcestershire | 1857 | BT31 | 311 | 1078 |
| Armadale Coal Co. Ltd | Armadale | Linlithgowshire | 1891-1903 | BT2 | 2160 | |
| Armley Coal Co. Ltd | Yorkshire | 1914 | BT31 | 22597 | 138385 | |
| Army & Navy Co. operative Coal Co. Ltd | 1887 | BT31 | 3796 | 23759 | ||
| Arthur & Edward & Mirey Stock Colliery Co. Ltd | 1856 | BT31 | 37 | 168 | ||
| Asby Colliery Co. Ltd | Asby | Cumberland | 1893 | BT31 | 5568 | 38732 |
| Ash next Sandwich Gas Light Coal & Coke Co. Ltd | 1863 | BT31 | 33975 | 678c | ||
| Ashburnham Steamship & Coal Co. Ltd | 1920 | BT31 | 32409 | 166057 | ||
| Ashgate Colliery Co. Ltd | Chesterfield | Derbyshire | 1904 | BT31 | 10647 | 80575 |
| Ashington Coal Co. Ltd | Ashington | Northumberland | 1898 | BT31 | 38242 | 58660 |
| Ashmore Park Colliery Co. Ltd | Wednesfield | Staffordshire | 1875 | BT31 | 2173 | 10138 |
| Ashton Hall Colliery Co. Ltd | 1866 | BT31 | 1257 | 3049 | ||
| Ashton Moss Colliery Co. Ltd | Audenshaw | Lancashire | 1887 | BT31 | 3951 | 25050 |
| Ashton Moss Colliery Ltd | Audenshaw | Lancashire | 1922 | BT31 | 27269 | 182368 |
| Ashworth Colliery Co. Ltd | Heywood | Lancashire | 1882 | BT31 | 2918 | 16259 |
| Associated Coal Consumers Ltd | 1910 | BT31 | 19240 | 107621 | ||
| Associated Coal Exporters Co. Ltd | 1921 | BT31 | 32490 | 176329 | ||
| Associated Collieries Ltd | 1903 | BT31 | 10189 | 76412 | ||
| Asterley Coal & Iron Syndicate Ltd | 1890 | BT31 | 4919 | 32761 | ||
| Astley & Tyldesley Collieries Ltd | Tyldesley | Lancashire | 1864 | BT31 | 31743 | 1094C |
| Aston (Peter France & Sons) Colliery Company | 1863 | BT31 | 810 | 580C | ||
| Aston Hall Coal & Brick Co. Ltd | Hawarden | Flintshire | 1903 | BT31 | 10197 | 76487 |
| Aston Hall Coal & Brick Co. Ltd | Hawarden | Flintshire | 1878 | BT31 | 2432 | 12317 |
| Atlantic Coal Co. Ltd | 1895 | BT31 | 6339 | 44795 | ||
| Atlantic Fuel & Coal (Swansea) Ltd | 1927 | BT31 | 32821 | 220513 | ||
| Atlantic Merthyr Collieries Ltd | Tonyrefail | Glamorganshire | 1905 | BT31 | 11358 | 87009 |
| Atlantic Resolven Smokeless Steam Coal Co. Ltd | 1881 | BT31 | 2849 | 15675 | ||
| Atlas Coal Co. Ltd | 1888 | BT31 | 4151 | 26791 | ||
| Atlas Coal Co. Ltd | Gloucestershire | 1861 | BT31 | 592 | 2464 | |
| Attercliffe Colliery Co. Ltd | Sheffield | Yorkshire | 1859 | BT31 | 396 | 1500 |
| Aura Coal Co. Ltd | 1932 | BT31 | 33381 | 269863 | ||
| Australasian Coal Mining Co | Australia | BT41 | 32 | 176 | ||
| Australian & Oriental Coal Co. Ltd | Australia | 1872 | BT31 | 1675 | 5940 | |
| Austrian Roy Coal Prospecting Syndicate Ltd | Austria | 1888 | BT31 | 4167 | 26922 | |
| Automatic Coal Gas Retort Co. Ltd | 1890 | BT31 | 4809 | 31871 | ||
| Avon Rhondda Colliery Co. Ltd | 1892 | BT31 | 5281 | 36044 | ||
| Avon Vale Colliery Co. Ltd | Cymmer | Glamorganshire | 1891 | BT31 | 5041 | 33835 |
| Avondale Coal Co. Ltd | 1893-1936 | BT2 | 2571 | |||
| Avonmouth Colliery Ltd | Cymmer | Glamorganshire | 1900 | BT31 | 9231 | 68516 |
| Awsworth Colliery Co. Ltd | Awsworth | Nottinghamshire | 1866 | BT31 | 1310 | 3369 |
| Awsworth Colliery Co. Ltd | Awsworth | Nottinghamshire | 1889 | BT31 | 4617 | 30304 |
| Axwell Park Colliery Workmens Institute Co. Ltd | Gateshead | Durham | 1902 | BT31 | 9711 | 72322 |
| Azoff Coal Co. Ltd | 1873 | BT31 | 31748 | 7157 | ||
| B & B G Collieries Ltd | 1930 | BT31 | 38049 | 252363 | ||
| B S N Coal Sales Ltd | 1936 | BT31 | 36715 | 318896 | ||
| Babbington Coal Co. Ltd (The) | Cinderhill | Nottinghamshire | 1925 | BT31 | 37522 | 206962 |
| Backworth Collieries Ltd (The) | Backworth | Northumberland | 1912 | BT31 | 37680-3768 | 122734 |
| Baddesley Collieries Ltd | 1926 | BT31 | 38426 | 214339 | ||
| Badland’s Coal Co. Ltd | 1905 | BT31 | 17632 | 86920 | ||
| Bagillt Coal Co. Ltd | Bagillt | Flintshire | 1904 | BT31 | 17354 | 83027 |
| Bagillt Colliery Co. Ltd | Bagillt | Flintshire | 1868 | BT31 | 1387 | 3888 |
| Baglan Hall Collieries Co. Ltd | 1867 | BT31 | 1342 | 3572 | ||
| Bagworth Colliery Co. Ltd | 1873 | BT31 | 1873 | 7431 | ||
| Bailey Hill Colliery Co. Ltd | Mold | Flintshire | 1879 | BT31 | 2516 | 12994 |
| Bailey Hill Colliery Ltd | Mold | Flintshire | 1887 | BT31 | 3833 | 24106 |
| Balbardie Colliery Co. Ltd | 1896-1907 | BT2 | 3109 | |||
| Ballengeich Collieries Ltd | 1907 | BT31 | 18080 | 93203 | ||
| Baltic Coal & Shipping Co. (Hull) Ltd | 1922 | BT31 | 27218 | 181792 | ||
| Baltic Coal & Shipping Co. Ltd | 1921 | BT31 | 26531 | 173984 | ||
| Baltic Saw Mills & Medway Coal Wharf Co. Ltd | 1877 | BT31 | 2349 | 11507 | ||
| Bank House Colliery Co. Ltd | Barnsley | Yorkshire | 1923 | BT31 | 28209 | 193840 |
| Bankfield (Bradley) Colliery Co. Ltd | 1912 | BT31 | 13917 | 122545 | ||
| Banknock Coal Co. Ltd | 1892 | BT2 | 2342 | |||
| Banwell Gas & Coal Co. Ltd | 1863 | BT31 | 14344 | 772c | ||
| Baptist End Colliery Co. Ltd | 1909 | BT31 | 12998 | 106151 | ||
| Barford Gas Light Coal & Coke Co. Ltd | 1872 | BT31 | 1696 | 6085 | ||
| Bargoed Coal Co. Ltd | Deri | Glamorganshire | 1863 | BT31 | 31743 | 703C |
| Barley Brook Coal & Cannel Co. Ltd | 1876 | BT31 | 2297 | 11082 | ||
| Barmoor Coal Co. Ltd | Hepscott | Northumberland | 1906 | BT31 | 11654 | 90109 |
| Barn Farm Colliery Co. Ltd | 1916 | BT31 | 23271 | 143843 | ||
| Barnsley & Central Coal Agency Ltd | Barnsley | Yorkshire | 1911 | BT31 | 13608 | 115817 |
| Barnsley & District Coal Sales Federation Ltd (The) | Barnsley | Yorkshire | 1936 | BT31 | 36969 | 318949 |
| Barnsley Coal & Bye Products Co. Ltd | Barnsley | Yorkshire | 1899 | BT31 | 8392 | 61022 |
| Barnsley Coal Co. Ltd | Barnsley | Yorkshire | 1857 | BT31 | 238 | 769 |
| Barnsley Coal Supply Co. Ltd | Barnsley | Yorkshire | 1907 | BT31 | 12233 | 96190 |
| Barnsley Collieries Association Ltd (The) | Barnsley | Yorkshire | 1931 | BT31 | 37737 | 253786 |
| Barrack Main Colliery Co. Ltd | 1922 | BT31 | 27294 | 182640 | ||
| Barrow in Furness Coal Exploration Syndicate Ltd | 1901 | BT31 | 9337 | 69371 | ||
| Barry Coal Co. Ltd | 1895 | BT31 | 6579 | 46315 | ||
| Barry Llantwit Coal, Stone & Clay Co. Ltd | Barry Llantwit | Glamorganshire | 1894 | BT31 | 5777 | 40485 |
| Barry Rhondda Colliery Co. Ltd | 1900 | BT31 | 9232 | 68529 | ||
| Barry Rhondda Colliery Co. Ltd | 1902 | BT31 | 10064 | 75296 | ||
| Basanti Oakdene Coal Co. Ltd | 1906 | BT31 | 11661 | 90180 | ||
| Bath Colliery Co. Ltd | Somersetshire | Somersetshire | 1872 | BT31 | 1749 | 6501 |
| Batsford & Todenham Coal Syndicate Ltd | 1902 | BT31 | 9741 | 72564 | ||
| Bayton Coal Coke & Brick Colliery Co. Ltd | 1901 | BT31 | 9679 | 71978 | ||
| Beacon Coal & Fuel Co. Ltd | 1927 | BT31 | 29763 | 219908 | ||
| Beacon Collieries Ltd | Billinge | Lancashire | 1919 | BT31 | 25186 | 160217 |
| Bearpark Coal & Coke Company | Bearpark | Durham | 1872 | BT31 | 36562-3656 | 6245 |
| Bebside Coal Co. Ltd | Bebside | Northumberland | 1888 | BT31 | 14920 | 26464 |
| Beckford Gas Light & Coal Co. Ltd | 1876 | BT31 | 2274 | 10915 | ||
| Bedford Colliery Co. Ltd | 1874 | BT31 | 1986 | 8498 | ||
| Bedford Pits Colliery Co | Mold | Flintshire | 1876 | BT31 | 2042 | 8893 |
| Bedford Pits Colliery Ltd | Mold | Flintshire | 1874 | BT31 | 2042 | 8893 |
| Bedlington Coal Co. Ltd | Bedlington | Northumberland | 1891 | BT31 | 38709 | 34416 |
| Bedminster, Easton, Kingswood & Parkfield Collieries Ltd | Bedminster | Gloucestershire | 1900 | BT31 | 9090 | 67304 |
| Bedwas & Lantwit Coal | Bedwas | Monmouthshire | 1862 | BT31 | 679 | 2895 |
| Bedwas Navigation Colliery Co. Ltd | Trethomas | Monmouthshire | 1908 | BT31 | 18634 | 100542 |
| Bedworth Coal & Iron Co. Ltd | Bedworth | Worcestershire | 1871 | BT31 | 1670 | 5916 |
| Beechburn Coal & Firebrick Co. Ltd | Crook | Durham | 1925 | BT31 | 28862 | 202766 |
| Beili Glas Colliery Co. Ltd | Loughor | Glamorganshire | 1914 | BT31 | 22247 | 135536 |
| Belfield Colliery Co. Ltd | 1872 | BT31 | 1751 | 6513 | ||
| Belmez Coal Co. Ltd | 1890 | BT31 | 4672 | 30738 | ||
| Belmont Coal Oil Co. Ltd | 1936 | BT31 | 33645 | 310996 | ||
| Belper Coal Co. Ltd | 1927 | BT31 | 29813 | 221068 | ||
| Belper Kilburn Collieries Ltd | 1897 | BT31 | 7644 | 54560 | ||
| Belper Laund Colliery Co. Ltd | 1876 | BT31 | 2243 | 10667 | ||
| Benallt Colliery Co. Ltd | 1923 | BT31 | 27748 | 187891 | ||
| Bendigo North Redan Coal Quartz Mining & Crushing Co. Ltd | 1861 | BT31 | 532 | 2141 | ||
| Bendigo North Redan Coal Quartz Mining & Crushing Co. Ltd | 1861 | BT31 | 532 | 2141 | ||
| Bengal Coal Syndicate Ltd | 1900 | BT31 | 9172 | 67992 | ||
| Bent Colliery Co. Ltd | 1873 | BT2 | 525 | |||
| Bentham Coal Coke & Gas Co. Ltd | 1868 | BT31 | 1384 | 3863 | ||
| Bentilee Colliery Co. Ltd | Stoke-on-Trent | Staffordshire | 1907 | BT31 | 12065 | 94356 |
| Bentley Colliery Co. Ltd | 1903 | BT31 | 10307 | 77476 | ||
| Bentley Colliery Co. Ltd | 1873 | BT31 | 1883 | 7515 | ||
| Bernard Musgrave Farless Coal Co. Ltd | 1921 | BT31 | 26757 | 176594 | ||
| Berning Coal Syndicate (Natal) Ltd | 1890 | BT31 | 4893 | 32547 | ||
| Berrima Coal Mining & Railway Co. Ltd | 1886 | BT31 | 3649 | 22555 | ||
| Berry Hill Collieries (Wharves) Ltd | Stoke-on-Trent | Staffordshire | 1929 | BT31 | 33067 | 237942 |
| Best Main Coal Co. Ltd | 1906 | BT31 | 11624 | 89828 | ||
| Bestwood Coal & Iron Co. Ltd | Bestwood | Nottinghamshire | 1872 | BT31 | 34128 | 6506 |
| Bethesda Colliery Co. Ltd | 1958 | BT31 | 40121 | 606104 | ||
| Bettisfield Colliery Co. Ltd | Bagillt | Flintshire | 1872 | BT31 | 1696 | 6083 |
| Bettisfield Colliery Co. Ltd | Bagillt | Flintshire | 1902 | BT31 | 9844 | 73364 |
| Bettisfield Colliery Ltd | Bagillt | Flintshire | 1903 | BT31 | 34745 | 78184 |
| Bettws Colliery Co. Ltd | Llangynwyd | Glamorganshire | 1908 | BT31 | 12591 | 100582 |
| Bettws Llantwit Coal Co. Ltd | Bettws | Glamorganshire | 1882 | BT31 | 3092 | 17708 |
| Bettws Llantwit Colliery Ltd | Bettws | Glamorganshire | 1873 | BT31 | 1830 | 7126 |
| Bettws Navigation Colliery Co. (1920) Ltd | 1920 | BT31 | 32436 | 168717 | ||
| Bettws Navigation Colliery Co. Ltd | 1915 | BT31 | 22847 | 140436 | ||
| Bexleyheath Coal Co. Ltd | 1905 | BT31 | 17357 | 83103 | ||
| Bicester Gas Coke & Coal Co. Ltd | 1856 | BT31 | 65 | 245 | ||
| Bickershaw Collieries Ltd | Bickershaw | Lancashire | 1872 | BT31 | 37000 | 6584 |
| Bickerstaffe Collieries Ltd | Bickerstaffe | Lancashire | 1899 | BT31 | 16113 | 60168 |
| Bidford Gas Light Coke & Coal Co. Ltd | 1868 | BT31 | 14406 | 4203 | ||
| Big Vein Anthracite Colliery Ltd | Abercraf | Breconshire | 1890 | BT31 | 4938 | 32929 |
| Billingsley Colliery Co. Ltd | Billingsley | Shropshire | 1910 | BT31 | 19547 | 110525 |
| Bilson & Crump Meadow Collieries Ltd | Cinderford | Gloucestershire | 1874 | BT31 | 1956 | 8246 |
| Bilston Colliery Co. Ltd | Bilston | Staffordshire | 1910 | BT31 | 19551 | 110596 |
| Birchenwood Colliery Co. Ltd | Kidsgrove | Staffordshire | 1892 | BT31 | 15257 | 37179 |
| Birchgrove Collieries Ltd | Llansamlet | Glamorganshire | 1901 | BT31 | 16691 | 71009 |
| Birchgrove Graigola Collieries Ltd | Llansamlet | Glamorganshire | 1874 | BT31 | 1937 | 8063 |
| Birchin Grove Colliery Co. Ltd | 1888 | BT31 | 4278 | 27752 | ||
| Bird & Co. (Coals) Ltd | 1927 | BT31 | 29840 | 221765 | ||
| Birkby Coal & Brick Co. Ltd | Crosby | Cumberland | 1884 | BT31 | 3417 | 20538 |
| Birmingham & District Coal & Coke Co. Ltd | 1857 | BT31 | 310 | 1077 | ||
| Birmingham (Blakeley Hall) Coal & Ironstone Co. Ltd | 1873 | BT31 | 1870 | 7407 | ||
| Birmingham City Collieries Syndicate Ltd | 1898 | BT31 | 7796 | 55754 | ||
| Birmingham Coal Co. Ltd | 1904 | BT31 | 10627 | 80422 | ||
| Birmingham Union Coal & Coke Co. | 1856 | BT31 | 140 | 440 | ||
| Birtley Coal Co. Ltd | 1862 | BT31 | 606 | 2541 | ||
| Bishwell Coal & Coke Co. Ltd | Dunvant | Glamorganshire | 1878 | BT31 | 2407 | 12061 |
| Bishwell Collieries Ltd | Dunvant | Glamorganshire | 1874 | BT31 | 1959 | 8283 |
| Bistre United Cannel Coal & Ironstone Co. Ltd | 1877 | BT31 | 2387 | 11868 | ||
| Black Ball Coal Co. Ltd | 1886 | BT31 | 3722 | 23161 | ||
| Black Ball Coal Mining Co. of New Zealand Ltd | New Zealand | 1892 | BT31 | 5291 | 36145 | |
| Black Diamond Coal & Cannel Colliery Ltd | Ffrith | Flintshire | 1891 | BT31 | 5212 | 35328 |
| Black Lane Colliery (Brymbo) Ltd | Moss | Denbighshire | 1909 | BT31 | 12857 | 104122 |
| Black Mountain Silica, Sand, Lime, Brick & Colliery Co. Ltd | Upper Cwmtwrch | Carmarthenshire | 1886 | BT31 | 3756 | 23417 |
| Black Pearl Coal Co. Ltd | 1887 | BT31 | 3841 | 24175 | ||
| Black Rock Colliery Co. Ltd | 1875 | BT31 | 2147 | 9923 | ||
| Blackball Coal Co. Ltd | 1898 | BT31 | 15894 | 55481 | ||
| Blackbrook Colliery Co. Ltd | St Helens | Lancashire | 1900 | BT31 | 9136 | 67666 |
| Blackburn Coal Supply & Motor Transport Co. Ltd | 1919 | BT31 | 25088 | 159428 | ||
| Blackeney & Forest of Dean Coal Co. Ltd | 1864 | BT31 | 999 | 1547C | ||
| Blacker Hall Colliery Co. Ltd | Mapplewell | Yorkshire | 1927 | BT31 | 29862 | 222312 |
| Blackett Colliery Co. Ltd | 1882 | BT31 | 2977 | 16742 | ||
| Blackheath Coal Co. Ltd | 1923 | BT31 | 28180 | 193496 | ||
| Blackley Hurst Colliery Co. Ltd | Billinge | Lancashire | 1902 | BT31 | 9824 | 73201 |
| Blackpool Coal Co. Ltd | 1875 | BT31 | 2091 | 9379 | ||
| Blackridge Coal Co. Ltd | 1889-1898 | BT2 | 1896 | |||
| Blackrod & Brynn Moss Coal & Cannel Co. Ltd | Blackrod | Lancashire | 1874 | BT31 | 2014 | 8704 |
| Blackrod & Wigan Coal Co. Ltd | Blackrod | Lancashire | 1891 | BT31 | 5072 | 34111 |
| Blackrod Coal Co. Ltd | Blackrod | Lancashire | 1876 | BT31 | 2295 | 11067 |
| Blackrod Colliery Co. Ltd | Blackrod | Lancashire | 1926 | BT31 | 29578 | 215630 |
| Blackwell Colliery Co. Ltd | Berristow | Derbyshire | 1871 | BT31 | 36997 | 5339 |
| Blackwell Park Red Hermatite Iron & Coal Mining Co. Carlisle Ltd | Carlisle | Cumberland | 1876 | BT31 | 2240 | 10646 |
| Blackwood Colliery Co. Ltd | 1904 | BT31 | 17350 | 82959 | ||
| Blaen Cae Gurwen Collieries Co. Ltd | Brynamman | Glamorganshire | 1893 | BT31 | 5673 | 39613 |
| Blaen Cwm Colliery Co. Ltd | Lower Cwmtwrch | Breconshire | 1908 | BT31 | 12550 | 100015 |
| Blaen Cwm Colliery Co. Ltd | Lower Cwmtwrch | Breconshire | 1911 | BT31 | 20088 | 116439 |
| Blaen Cwmbach Steam Coal Co. Ltd | 1874 | BT31 | 1968 | 8350 | ||
| Blaenafon & Cefn Y Van Freehold Colliery Co. Ltd | 1873 | BT31 | 1820 | 7039 | ||
| Blaenclydach Colliery Co. Ltd | Clydach Vale | Glamorganshire | 1897 | BT31 | 31575 | 55117 |
| Blaencorrwg Colliery Co. Ltd | Blaencorrwg | Glamorganshire | 1913 | BT31 | 21720 | 131171 |
| Blaengarw Colliery Co. Ltd | Blaengarw | Glamorganshire | 1890 | BT31 | 4923 | 32808 |
| Blaenhirwain Anthracite Collieries Ltd | 1913 | BT31 | 21195 | 126824 | ||
| Blaenhirwain Colliery Co. Ltd | Cross Hands | Carmarthenshire | 1908 | BT31 | 18653 | 100725 |
| Blaenmawr Colliery Co. Ltd | Tonmawr | Glamorganshire | 1920 | BT31 | 25757 | 165827 |
| Blaina Colliery Co. Ltd | Pantyffynon | Carmarthenshire | 1897 | BT31 | 15768 | 52275 |
| Blaina Iron & Coal Co. Ltd | 1869 | BT31 | 1470 | 4472 | ||
| Blainscough Colliery Co. Ltd | Coppul | Lancashire | 1891 | BT31 | 37475 | 35001 |
| Blakelow Colliery Co. Ltd | 1871 | BT31 | 1645 | 5692 | ||
| Blakely Hall Colliery Co. Ltd | 1877 | BT31 | 2360 | 11606 | ||
| Bloom Smythies Colliery Co. Ltd | Tipton | Staffordshire | 1905 | BT31 | 17556 | 85851 |
| Bloomfield Colliery (1900) Ltd | Tipton | Staffordshire | 1900 | BT31 | 9071 | 67134 |
| Bloxwich Colliery Co. Ltd | Walsall | Staffordshire | 1864 | BT31 | 948 | 1263C |
| Bloxwich Colliery Co. Ltd | Walsall | Staffordshire | 1912 | BT31 | 20457 | 120128 |
| Blue Diamond Coaling Co. Ltd | 1921 | BT31 | 26853 | 177651 | ||
| Bohemian Coal & Iron Mining Co. Ltd | 1913 | BT31 | 14128 | 129771 | ||
| Bohemian Coal & Iron Mining Co. Ltd | 1913 | BT31 | 14128 | 129771 | ||
| Bohemian Coal Mining Co. Ltd | Bohemia | Czech Republic | BT41 | 69 | 381 | |
| Bohemian Coal Mining Co. Ltd | 1858 | BT31 | 370 | 1361 | ||
| Bohemian Coal Mining Co. Ltd | Bohemia | Czech Republic | 1858 | BT31 | 370 | 1361 |
| Bolam & Redworth Coal Co. Ltd | 1913 | BT31 | 21238 | 127199 | ||
| Bold Colliery Co. Ltd | 1876 | BT31 | 2249 | 10718 | ||
| Boldon Colliery Working Men’s Club Co. Ltd | 1902 | BT31 | 16940 | 75709 | ||
| Bolivar Timber & Coal Co. Ltd | 1868 | BT31 | 1429 | 4186 | ||
| Bolsover Colliery Co. Ltd | Bolsover | Derbyshire | 1890 | BT31 | 36808 | 30653 |
| Bolsover Colliery Housing Co. Ltd | Bolsover | Derbyshire | 1923 | BT31 | 36679 | 187352 |
| Bonvilles Court Coal & Iron Co. Ltd | Pembrokeshire | 1876 | BT31 | 2230 | 10560 | |
| Bonvilles Court Coal & Iron Co. Ltd | Pembrokeshire | 1873 | BT31 | 1835 | 7163 | |
| Bonvilles Court Coal Co. Ltd | Pembrokeshire | 1909 | BT31 | 36878 | 102359 | |
| Border Counties Coal Co. Ltd | 1913 | BT31 | 21262 | 127382 | ||
| Borneo (Dutch Indies) & Sumatra Coal Syndicate Ltd | 1910 | BT31 | 13443 | 112697 | ||
| Borough Coal Co. Ltd | Barnsley | Yorkshire | 1927 | BT31 | 29733 | 219141 |
| Borough Collieries Ltd | Barnsley | Yorkshire | 1921 | BT31 | 26474 | 173386 |
| Boston Coal Co. Ltd | 1877 | BT31 | 2361 | 11617 | ||
| Boulder Valley Collieries Co. of Colorado Ltd | Colorado | U.S.A. | 1874 | BT31 | 1963 | 8312 |
| Bournehills & Withymoor Collieries & Fire clay Co. Ltd | Netherton | Staffordshire | 1890 | BT31 | 15059 | 30910 |
| Bournemouth Coal & General Supply Co. Ltd | 1883 | BT31 | 3152 | 18234 | ||
| Bournemouth Coal Corn & Forage Co. Ltd | 1902 | BT31 | 10062 | 75275 | ||
| Bower Colliery Co. Ltd | Hollinwood | Lancashire | 1917 | BT31 | 23699 | 147431 |
| Bowers Allerton Collieries Ltd | Allerton | Yorkshire | 1873 | BT31 | 1820 | 7038 |
| Bowhill Coal Company, Fife, Ltd | 1894-1914 | BT2 | 2796 | |||
| Boyesen’s Patent Coal Barge Co. Ltd | 1897 | BT31 | 7454 | 52970 | ||
| Boythorpe Colliery Co. Ltd | Chesterfield | Derbyshire | 1872 | BT31 | 1794 | 6826 |
| Bradford Coal Co. Ltd | Manchester | Lancashire | 1875 | BT31 | 2135 | 9808 |
| Bradford Wood Fuel & Coal Co. Ltd | 1926 | BT31 | 29384 | 211253 | ||
| Bradley Hall Colliery Co. Ltd | Oldbury | Staffordshire | 1887 | BT31 | 4000 | 25443 |
| Bradley Lane Colliery Co. Ltd | Radcliffe | Lancashire | 1929 | BT31 | 30563 | 243267 |
| Bradley Lodge Colliery Co. Ltd | 1908 | BT31 | 12484 | 99231 | ||
| Braich Y Cymmer Collieries Ltd | 1898 | BT31 | 16032 | 58428 | ||
| Bramcote Colliery Co. Ltd | Bramcote | Nottinghamshire | 1873 | BT31 | 1828 | 7104 |
| Brazilian Collieries Ltd | 1870 | BT31 | 1550 | 4978 | ||
| Brearley Colliery Co. Ltd | 1883 | BT31 | 3232 | 18927 | ||
| Breckenridge Cannel Coal Co. Ltd | 1896 | BT31 | 15565 | 46647 | ||
| Brecknock Colliery Co. Ltd | Breconshire | 1873 | BT31 | 1851 | 7263 | |
| Breconshire Coal & Lime Co. Ltd | Breconshire | 1863 | BT31 | 14339 | 399c | |
| Bredisholm Collieries Ltd | nd | BT2 | 3398 | |||
| Bredisholm Collieries Ltd | nd | BT2 | 3398 | |||
| Brenkburne Iron & Coal Co. Ltd | 1856 | BT31 | 6 | 41 | ||
| Brentwood Brick & Coal Co. Ltd | 1874 | BT31 | 2041 | 8884 | ||
| Brereton Collieries Ltd | Rugeley | Staffordshire | 1906 | BT31 | 36862 | 90261 |
| Bretchill Colliery Co. Ltd | Shrewsbury | Shropshire | 1860 | BT31 | 481 | 1884 |
| Bridge Gas Coke & Coal Co. Ltd | 1858 | BT31 | 30688 | 1322 | ||
| Bridgend (Cardiff) Collieries Ltd | Heol-y-Cyw | Glamorganshire | 1911 | BT31 | 19871 | 114220 |
| Bridgend Collieries Ltd (The) | Heol-y-Cyw | Glamorganshire | 1937 | BT31 | 35711 | 326593 |
| Bridgwater Collieries Co. Ltd | Bridgewater | Lancashire | 1909 | BT31 | 12851 | 104036 |
| Brierley Hill Colliery Co. Ltd | Brierley Hill | Worcestershire | 1916 | BT31 | 23408 | 144896 |
| Briggs Collieries Ltd | Normanton | Yorkshire | 1939 | BT31 | 38931 | 354626 |
| Brighton Mutual Coal Supply Association Ltd | 1894 | BT31 | 5790 | 40581 | ||
| Brightside Coal Co. | 1856 | BT31 | 49 | 201 | ||
| Brinkburn Coal Co. Ltd | Brinkburn | Northumberland | 1917 | BT31 | 23551 | 146031 |
| Brinsley Hall Colliery Co. Ltd | Brinsley | Nottinghamshire | 1858 | BT31 | 357 | 1302 |
| Brinsop Hall Coal Co. Ltd | Westhoughton | Lancashire | 1874 | BT31 | 1928 | 7964 |
| Bristol & Forest of Dean Coal Co. Ltd | Whitecroft | Gloucestershire | 1856 | BT31 | 215 | 663 |
| Bristol & Midland Colliery Co. Ltd | Bedminster | Gloucestershire | 1890 | BT31 | 4857 | 32244 |
| Bristol & West of England Coal Co. Ltd | 1892 | BT31 | 5361 | 36790 | ||
| Bristol Collieries Co. Ltd | Somersetshire | Somersetshire | 1873 | BT31 | 1900 | 7683 |
| Bristol Wallsend Collieries Ltd | Bedminster | Gloucestershire | 1906 | BT31 | 11392 | 87414 |
| British & Colonial Colliery Supply Association Ltd | 1897 | BT31 | 7339 | 51995 | ||
| British & Overseas Coal Trading Co. Ltd | 1931 | BT31 | 33235 | 254020 | ||
| British Anthracite Colliery Co. Ltd | 1905 | BT31 | 11275 | 86212 | ||
| British Burmah Colliery Syndicate Ltd | 1881 | BT31 | 2942 | 16447 | ||
| British Coal & General Trading Co. Ltd | 1923 | BT31 | 28132 | 192919 | ||
| British Coal Co. (Gibraltar) Ltd | 1898 | BT31 | 8268 | 60004 | ||
| British Coal Co. Ltd | 1882 | BT31 | 3045 | 17281 | ||
| British Coal Consumers Ltd | 1927 | BT31 | 29759 | 219831 | ||
| British Coal Distillation | 1928 | BT31 | 36074 | 227635 | ||
| British Coal Exports Ltd | 1922 | BT31 | 27135 | 180854 | ||
| British Coal Refining Processes Ltd (as changed) | 1930 | BT31 | 35534 | 252475 | ||
| British Coal Transport & Haulage Co. Ltd | 1922 | BT31 | 27173 | 181334 | ||
| British Collieries Syndicate Ltd | 1901 | BT31 | 9434 | 70091 | ||
| British Columbia Collieries Co. Ltd | British Columbia | Canada | 1873 | BT31 | 1864 | 7345 |
| British Columbian Coal Syndicate Ltd | British Columbia | Canada | 1914 | BT31 | 14231 | 134380 |
| British Consolidated Coal & Shipping Co. Ltd | 1922 | BT31 | 27051 | 179786 | ||
| British Klip River Colliery Co. Ltd | 1912 | BT31 | 20430 | 119842 | ||
| British Patent Fuel Coal & Coke Co. Ltd | 1889 | BT31 | 4407 | 28656 | ||
| British Red Ash Collieries Ltd | Llantwit Fardre | Glamorganshire | 1912 | BT31 | 20745 | 122702 |
| British Rhondda Steam Coal Co. Ltd | 1904 | BT31 | 10914 | 82827 | ||
| Briton Ferry Coal & Brick Co. Ltd | Briton Ferry | Glamorganshire | 1891 | BT31 | 4977 | 33268 |
| Briton Ferry Coal & Metals Co. Ltd | Briton Ferry | Glamorganshire | 1917 | BT31 | 23756 | 147921 |
| Briton Ferry Coal & Pottery Co. Ltd | Briton Ferry | Glamorganshire | 1881 | BT31 | 2778 | 15158 |
| Briton Ferry Collieries Co. Ltd | Cwmavon | Glamorganshire | 1871 | BT31 | 1618 | 5493 |
| Broad Lane Colliery Ltd | Bloxwich | Staffordshire | 1915 | BT31 | 22763 | 139757 |
| Broad Oak Collieries Co. Ltd | Lancashire | 1874 | BT31 | 1926 | 7947 | |
| Broad Oak Colliery Co. Ltd | St Helens | Lancashire | 1898 | BT31 | 8092 | 58339 |
| Broadley Colliery Co. Ltd | Healey | Lancashire | 1918 | BT31 | 24163 | 151303 |
| Broadmoor Anthractie Coal Co. Ltd | Pembrokeshire | 1857 | BT31 | 262 | 873 | |
| Broadoak Collieries Ltd | Loughor | Glamorganshire | 1921 | BT31 | 32467 | 172496 |
| Broadway Colliery Co. Ltd | Staffordshire | 1871 | BT31 | 1605 | 5395 | |
| Broadwell Colliery & Land Co. Ltd | 1876 | BT31 | 2289 | 11028 | ||
| Brockham Brick Stone & Coal Co. Ltd | 1873 | BT31 | 1910 | 7791 | ||
| Brodsworth Main Colliery Co. Ltd | Woodlands | Yorkshire | 1905 | BT31 | 38545 | |
| Broken River (New Zealand) Coal Mines Ltd | New Zealand | 1913 | BT31 | 21544 | 129708 | |
| Bromfield Hall Coal & Cannel Co. Ltd | Mold | Flintshire | 1862 | BT31 | 609 | 2558 |
| Bromley Collieries & Pumping Station Ltd | 1897 | BT31 | 7329 | 51913 | ||
| Bromley Colliery Ltd | Somersetshire | Somersetshire | 1896 | BT31 | 7125 | 50251 |
| Bromley Hall Coal & Iron Co. Ltd | 1874 | BT31 | 2014 | 8697 | ||
| Bronwhlfa Colliery Co. Ltd | Mold | Flintshire | 1866 | BT31 | 1267 | 3107 |
| Brookhill Colliery & Pottery Co. Ltd | 1910 | BT31 | 19320 | 108306 | ||
| Broomhill Coal Co. Ltd | Togston | Northumberland | 1891 | BT31 | 5138 | 34687 |
| Broomhill Collieries Ltd | Amble | Northumberland | 1900 | BT31 | 36617 | 67635 |
| Brora Coal & Brick Co. Ltd | Brora | Sutherland | 1954 | BT31 | 39907 | 528492 |
| Brotherton Coal Co. Ltd | 1905 | BT31 | 11007 | 83678 | ||
| Broughton & Plas Power Coal Co. Ltd | Wrexham | Denbighshire | 1881 | BT31 | 37927 | 14805 |
| Brown Bros (Coal) Ltd | 1924 | BT31 | 28466 | 197242 | ||
| Brownhills Coal & Iron Co. Ltd | 1875 | BT31 | 2134 | 9796 | ||
| Brunner Collieries Ltd | 1912 | BT31 | 13836 | 120510 | ||
| Bruntcliffe Hill Colliery Co. Ltd | Morley | Yorkshire | 1876 | BT31 | 2282 | 10974 |
| Brushes Colliery Co. Ltd | 1921 | BT31 | 26954 | 178718 | ||
| Bryn Forest Colliery Ltd | 1903 | BT31 | 10294 | 77336 | ||
| Bryn Moss Coal & Cannel Co. Ltd | Wigan | Lancashire | 1861 | BT31 | 583 | 2418 |
| Bryn Navigation Colliery Co. Ltd | Cwmafan | Glamorganshire | 1898 | BT31 | 7842 | 56131 |
| Bryn Yr Owen Colliery Co. Ltd | 1858 | BT31 | 328 | 1158 | ||
| Brynafan Colliery Co. Ltd | 1913 | BT31 | 14155 | 130748 | ||
| Brynammon Collieries Ltd | Brynamman | Carmarthenshire | 1917 | BT31 | 23904 | 149130 |
| Brynbach Colliery Co. Ltd | 1908 | BT31 | 12582 | 100442 | ||
| Bryncethin Colliery Co. Ltd | 1906 | BT31 | 11631 | 89882 | ||
| Brynderi Anthracite Colliery (1923) Ltd | 1923 | BT31 | 28048 | 191900 | ||
| Brynderi Anthracite Colliery Ltd | 1919 | BT31 | 25045 | 159024 | ||
| Bryndu & Port Talbot Collieries Ltd | 1898 | BT31 | 8023 | 57728 | ||
| Bryndu Coal & Coke Co. Ltd | 1892-1902 | BT2 | 2364 | |||
| Bryngrugos Colliery Co. Ltd | 1918 | BT31 | 23978 | 149749 | ||
| Bryngwyn Colliery Co. Ltd | 1918 | BT31 | 23986 | 149820 | ||
| Brynhenllys Anthracite Colliery Ltd | Upper Cwmtwrch | Carmarthenshire | 1925 | BT31 | 40709 | 209636 |
| Brynkinalt Collieries Co. Ltd | St Martins | Denbighshire | 1873 | BT31 | 1890 | 7580 |
| Brynkinalt Collieries Ltd | St Martins | Denbighshire | 1883 | BT31 | 3240 | 18989 |
| Brynlais Colliery Co. Ltd | 1922 | BT31 | 26985 | 179081 | ||
| Brynlloi Colliery Co. Ltd | 1873 | BT31 | 1915 | 7849 | ||
| Brynmally Colliery Co. Ltd | Gwersyllt | Denbighshire | 1898 | BT31 | 7978 | 57323 |
| Brynmawr Coal & Iron Co. Ltd | 1873 | BT31 | 1894 | 7621 | ||
| Brynmawr Colliery Co. Ltd | 1876 | BT31 | 2261 | 10808 | ||
| Brynn Hall Colliery Co. Ltd Vol 1 | Ashton-in-Makerfield | Lancashire | 1893 | BT31 | 34344 | 37944 |
| Brynna Coal & Steel Co. Ltd | 1873 | BT31 | 1915 | 7850 | ||
| Brynna Collieries Ltd Vol 1 | 1921 | BT31 | 35280 | 173200 | ||
| Brynna Gas Coal Collieries Ltd | Llanharan | Glamorganshire | 1915 | BT31 | 22772 | 139835 |
| Brynycae & Cadley Collieries Co. Ltd | 1873 | BT31 | 1874 | 7440 | ||
| Brynygroes Colliery Ltd | 1918 | BT31 | 24217 | 151732 | ||
| Buckley Colliery Co. Ltd | Buckley | Flintshire | 1870 | BT31 | 1530 | 4842 |
| Buell Pulverised Coal Syndicate Ltd | 1926 | BT31 | 29609 | 216300 | ||
| Buffery Colliery Co. Ltd | Netherton | Worcestershire | 1917 | BT31 | 23568 | 146201 |
| Bulgarian Coal Syndicate Ltd | 1910 | BT31 | 13326 | 110889 | ||
| Bulkeley Coal Ironstone & Fireclay | 1862 | BT31 | 639 | 2682 | ||
| Bull Gill Colliery Co. Ltd | Gilcrux | Cumberland | 1897 | BT31 | 7521 | 53559 |
| Bullcroft Main Collieries Ltd | Carcroft | Yorkshire | 1913 | BT31 | 38546 | |
| Bullcroft Main Colliery Co. Ltd | Carcroft | Yorkshire | 1908 | BT31 | 12345 | 97518 |
| Bullfield Baptist End Colliery Co. Ltd | Windmill End | Staffordshire | 1900 | BT31 | 9209 | 68303 |
| Bullgill Coal Co. Ltd | Gilcrux | Cumberland | 1902 | BT31 | 9799 | 73016 |
| Bullocks Hall Colliery Co. Ltd | West Chevington | Northumberland | 1911 | BT31 | 20212 | 117694 |
| Burford Gas Light Coal & Coke Co. Ltd | 1863 | BT31 | 14342 | 601c | ||
| Burma Collieries Ltd | 1905 | BT31 | 11083 | 84344 | ||
| Burnley Coal Co. Ltd | 1875 | BT31 | 2121 | 9692 | ||
| Burnley Colliery Trust Ltd | 1932 | BT31 | 38052 | 267406 | ||
| Burradon & Coxlodge Coal Co. Ltd | Burradon | Northumberland | 1884 | BT31 | 31015 | 20329 |
| Burry Port (Carmarthenshire) Coal & Ironstone Co. Ltd | Burry Port | Carmarthenshire | 1860 | BT31 | 501 | 1985 |
| Burton Gas Coal & Coke Co. Ltd | 1859 | BT31 | 14308 | 1688 | ||
| Bush Collieries Ltd | 1920 | BT31 | 26364 | 172129 | ||
| Bushey Colliery & Brickworks Co. Ltd | Leeds | Yorkshire | 1885 | BT31 | 3434 | 20707 |
| Bussey Coal Distillation Co. Ltd | 1928 | BT31 | 35441 | 230966 | ||
| Bussey Coal Distillation Co. Ltd | 1928 | BT31 | 35440 | 230966 | ||
| Bute Merthyr Steam Coal Association Ltd | 1857 | BT31 | 256 | 847 | ||
| Butterknowle Colliery Co. Ltd | Lynesack | Durham | 1885 | BT31 | 3551 | 21705 |
| Butterknowle Marsfield Collieries Ltd | Lynesack | Durham | 1910 | BT31 | 36884 | 110122 |
| Buttery Hatch (Rhymney Valley) Colliery Co. Ltd | Fleur-de-lis | Glamorganshire | 1903 | BT31 | 10466 | 78938 |
| Buxton Gas Coke & Coal Co. Ltd | 1865 | BT31 | 1085 | 2027C | ||
| Bwlch Colliery Co. Ltd | Hirwaun | Glamorganshire | 1907 | BT31 | 12215 | 95985 |
| Bwlch Colliery Co. Ltd | Cwmavon | Glamorganshire | 1917 | BT31 | 23872 | 148877 |
| Bwllfa & Cwmaman Collieries Ltd | 1891 | BT31 | 31255 | 34444 | ||
| Bwllfa & Merthyr Dare Colliery Co. Ltd | Hirwaun | Glamorganshire | 1876 | BT31 | 2288 | 11023 |
| Bwllfa & Merthyr Dare Steam Collieries Ltd | Hirwaun | Glamorganshire | 1890 | BT31 | 4900 | 32601 |
| Bwllfa Colliery Co. Ltd | Aberdare | Glamorganshire | 1864 | BT31 | 956 | 1304C |
| Bychton Coal Cannel & Iron Co. Mostyn Ltd | Mostyn | Flintshire | 1858 | BT31 | 327 | 1153 |
| Bychton Hall Colliery Co. Ltd | Mostyn | Flintshire | 1899 | BT31 | 16236 | 62902 |
| Byron & Blenkinsop Colliery Co. Ltd | Haltwhistle | Northumberland | 1934 | BT31 | 33517 | 288684 |
