Operators
Companies and organisations that worked published mines, where that history is known.
101 operators beginning with T, of 1903.
| Operator | Mines | Active | Regions | Commodities |
| T. & E. Williams |
1 |
to 1913 |
Blaenau Gwent |
Coal |
| T. and H. T. Scowcroft |
1 |
1854–1930 |
Greater Manchester |
Coal |
| T. Armstrong |
1 |
1890–1899 |
Northumberland |
Coal |
| T. G. and A. Metcalf |
1 |
1920–1925 |
North Yorkshire |
Flagstone, Sandstone |
| T. Hodgkinson |
1 |
1891–1899 |
Gloucestershire |
Coal |
| T. M. Hunter Ltd |
1 |
1914–1949 |
Highland |
Coal |
| T. T. Lewis and Company Limited |
1 |
1958–1973 |
Carmarthenshire |
Coal |
| T. Vaughan & Company |
1 |
1872–1878 |
North Yorkshire |
Ironstone |
| T. W. Ward & Son Ltd. |
1 |
from 1950 |
Cornwall |
Granite |
| Talargoch Mining Company Ltd |
1 |
1857–1883 |
Flintshire |
Lead, Zinc |
| Talbot Merthyr Collieries Limited |
1 |
1907–1917 |
Neath Port Talbot |
Coal |
| Tamworth Colliery Co. Ltd |
1 |
|
Warwickshire |
Coal |
| Tan Hill Colliery Co. |
1 |
|
North Yorkshire |
Coal |
| Tankerville Great Consols |
2 |
1879–1884 |
Shropshire |
Lead, Barite |
| Tankerville Mining Company |
1 |
1870–1884 |
Shropshire |
Barite, Lead, Silver |
| Tarbrax Oil Company Ltd |
1 |
from 1905 |
South Lanarkshire |
Oil Shale |
| Tareni Colliery Company Limited |
2 |
1928–1947 |
Neath Port Talbot |
Coal |
| Tarmac |
10 |
1992–2015 |
North Yorkshire, Derbyshire, Leicestershire |
Limestone, Granite, Sandstone |
| Tawe Vale Collieries Limited |
1 |
1921–1927 |
Neath Port Talbot |
Coal |
| Tees Furnace Company |
1 |
1906–1921 |
North Yorkshire |
Iron |
| Teesdale Lead and Zinc Mines Ltd |
1 |
1906–1910 |
County Durham |
Lead |
| Thomas and Griffiths |
1 |
to 1884 |
Rhondda Cynon Taf |
Coal |
| Thomas and Owens |
1 |
1973–1988 |
Carmarthenshire |
Coal |
| Thomas Bayley |
1 |
1866–1874 |
Nottinghamshire |
Coal |
| Thomas Bennett Brain |
1 |
1899–1914 |
Gloucestershire |
Coal |
| Thomas Blacklock |
1 |
1910–1920 |
Cumbria |
Barite |
| Thomas Brain and the Brain family |
1 |
from 1842 |
Gloucestershire |
Coal |
| Thomas Brothers of Glanamman |
1 |
1992–1995 |
Carmarthenshire |
Coal |
| Thomas Brown |
1 |
1840–1852 |
Blaenau Gwent |
Coal |
| Thomas Bushell |
1 |
from 1636 |
Ceredigion |
Lead, Silver |
| Thomas Charlton and Company |
1 |
1864–1878 |
North Yorkshire |
Ironstone |
| Thomas Chippendale and Company |
1 |
1819–1873 |
North Yorkshire |
Lead |
| Thomas Clark |
1 |
1894–1898 |
Northumberland |
Barite, Lead |
| Thomas Clayton |
2 |
from 1883 |
Wrexham |
Coal |
| Thomas Clayton and Company |
1 |
from 1849 |
Wrexham |
Coal |
| Thomas Cottingham |
1 |
1820–1822 |
Cheshire |
Coal |
| Thomas Edwards |
1 |
|
Swansea |
Coal |
| Thomas Fletcher & Sons |
1 |
from 1840 |
Greater Manchester |
Coal |
| Thomas Fletcher Senior |
1 |
from 1830 |
Greater Manchester |
Coal |
| Thomas Glasbrook |
1 |
from 1870 |
Swansea |
Coal |
| Thomas Grove |
1 |
1796–1871 |
Powys |
Lead, Zinc |
| Thomas Hedges Deakin |
1 |
from 1884 |
Gloucestershire |
Coal |
| Thomas Hollow |
1 |
from 1859 |
Cornwall |
Tin |
| Thomas Hopper & Co. |
1 |
1807–1819 |
North Yorkshire |
Lead |
| Thomas Joseph |
1 |
1865–1880 |
Rhondda Cynon Taf |
Coal |
| Thomas Legh |
1 |
1830–1847 |
Lancashire |
Coal |
| Thomas Lovatt & Co. |
1 |
from 1781 |
Shropshire |
Barite, Fluorspar, Lead |
| Thomas McGhie & Sons Ltd |
1 |
from 1937 |
Cumbria |
Gypsum |
| Thomas Newton |
1 |
from 1888 |
Cumbria |
Slate |
| Thomas North |
1 |
1853–1868 |
Nottinghamshire |
Coal |
| Thomas Parry and Company |
1 |
from 1896 |
Flintshire |
Cannel Coal, Coal |
| Thomas Powell |
4 |
1811–1864 |
Caerphilly, Rhondda Cynon Taf |
Coal |
| Thomas Pulleine |
1 |
from 1690 |
North Yorkshire |
Coal |
| Thomas Robinson |
1 |
1700 |
Cumbria |
Copper |
| Thomas Shepherd |
1 |
1849–1882 |
Rhondda Cynon Taf |
Coal, Ironstone |
| Thomas Smith |
1 |
from 1738 |
North Yorkshire |
Lead |
| Thomas Spowart & Company Ltd. |
1 |
1860–1931 |
Fife |
Coal |
| Thomas Stick |
1 |
1844–1849 |
Swansea |
Coal |
| Thomas Taylor |
1 |
1910–1924 |
Rhondda Cynon Taf |
Coal |
| Thomas W. Booker |
1 |
1837–1879 |
Cardiff |
Iron, Ochre |
| Thomas Walters |
1 |
1867–1873 |
Northamptonshire |
Iron |
| Thomas Ward |
1 |
1890–1927 |
Ceredigion |
Copper, Lead, Silver |
| Thomas Wayne |
2 |
from 1858 |
Rhondda Cynon Taf |
Coal, Ironstone |
| Thomas Williams and Sons (Llangennech) Ltd |
2 |
1894–1947 |
Carmarthenshire, Swansea |
Coal |
| Thomas Wilson |
1 |
1867–1890 |
Cumbria |
Barytocalcite, Lead |
| Thompson & Company |
1 |
|
North Yorkshire |
Lead |
| Thompson & Hill |
1 |
1820–1880 |
Conwy |
Pyrite |
| Thornley Coal Company |
1 |
from 1835 |
County Durham |
Coal |
| Thornthwaite Mines Ltd |
1 |
1900–1920 |
Cumbria |
Lead, Zinc |
| Thrislington Coal Company |
1 |
1879–1914 |
County Durham |
Coal |
| Tilberthwaite Green Slate Co. Ltd |
1 |
|
Cumbria |
Slate |
| Tilcon |
2 |
from 1980 |
Derbyshire, Tyne and Wear |
Limestone |
| Tilcon Lochaline Limited |
1 |
from 1940 |
Highland |
Silica Sand |
| Tinsley Park Colliery Company |
2 |
1936–1945 |
South Yorkshire |
Coal |
| Tir-y-Dail Colliery Company |
1 |
1898–1908 |
Carmarthenshire |
Coal |
| Tomlinson and Company |
1 |
1808–1810 |
Cheshire |
Cobalt, Copper, Lead |
| Tournigan Gold Corporation |
1 |
2003–2009 |
County Tyrone |
Gold |
| Tow Law Coal & Iron Company |
2 |
1853–1869 |
North Yorkshire |
Ironstone |
| Tower Anthracite Company |
2 |
1971–1992 |
Neath Port Talbot |
Coal |
| Tredegar Iron and Coal Company |
5 |
1876–1968 |
Caerphilly, Blaenau Gwent |
Coal, Ironstone |
| Treffry and Co |
2 |
1861–1878 |
Somerset |
Lead |
| Trimdon Coal Company |
1 |
1877–1947 |
County Durham |
Coal |
| Trimsaran Colliery Co. Ltd |
1 |
to 1931 |
Carmarthenshire |
Anthracite, Fireclay |
| Troedyrhiw Coal Company |
2 |
1852–1927 |
Rhondda Cynon Taf |
Coal |
| Troutbeck Park Green Slate Company Ltd |
1 |
1883–1894 |
Cumbria |
Slate |
| Trustee of Frances, late Countess of Waldegrave |
1 |
|
Somerset |
Coal |
| Trustees of John Wilson |
1 |
1854 |
Falkirk |
Coal, Ironstone |
| Trustees of the late C. Hollwey |
1 |
to 1917 |
Somerset |
Coal |
| Tumble Anthracite Limited |
1 |
1988–1990 |
Carmarthenshire |
Coal |
| Tungsten West plc |
1 |
from 2019 |
Devon |
Tin, Tungsten |
| Tunnel Portland Cement Company Ltd |
1 |
1937–1968 |
Buckinghamshire |
Chalk, Limestone |
| Turner and Casson |
1 |
1800–1892 |
Gwynedd |
Slate |
| Tylchafach Colliery Company |
1 |
1877–1880 |
Rhondda Cynon Taf |
Coal |
| Tyldesley Coal Company |
4 |
1867–1929 |
Greater Manchester, Lancashire |
Coal |
| Tyndrum Lead & Zinc Mines Ltd |
1 |
1918–1926 |
Stirling |
Lead, Silver, Zinc |
| Tyne Coal Co. |
1 |
from 1880 |
Tyne and Wear |
Coal |
| Tynedale Coal Co. Ltd |
2 |
1909–1919 |
Northumberland |
Coal |
| Tynedale Lead Company Ltd |
1 |
1925–1927 |
Northumberland |
Lead, Umber |
| Tynehead Lead Mining Company |
1 |
1854–1873 |
Cumbria |
Copper, Lead |
| Tynywaun Colliery Company |
1 |
from 1917 |
Merthyr Tydfil |
Coal |
| Tyr Glandŵr Coal Company |
1 |
1871–1880 |
Swansea |
Coal |