| W. and M. Howe |
1 |
|
County Durham |
Ganister, Lead |
| W. B. Beaumont |
2 |
to 1883 |
County Durham |
Lead, Fluorspar |
| W. B. Lead Company |
13 |
1770–1921 |
County Durham, Northumberland |
Lead, Fluorspar, Zinc |
| W. E. Oakeley |
1 |
1878–1972 |
Gwynedd |
Slate |
| W. H. Heywood |
2 |
1917–1922 |
Cumbria |
Copper, Lead |
| W. Harrison Ltd |
2 |
1896–1947 |
Staffordshire |
Coal |
| W. Hird and Co. |
1 |
from 1905 |
County Durham |
Fluorspar, Lead |
| W. O. Foster |
1 |
1869–1890 |
Shropshire |
Brick Clay, Coal |
| W. Peareth, Esq. |
1 |
from 1778 |
County Durham |
Coal |
| W. T. Shaw and J. W. Simpson |
1 |
1951–1961 |
Dumfries and Galloway |
Barite, Copper |
| W. Williams |
1 |
1860–1880 |
Neath Port Talbot |
Coal |
| W. Y. Craig and Son |
2 |
1881–1889 |
Shropshire, Staffordshire |
Coal |
| W. Y. Craig and Sons |
1 |
1880–1947 |
Wrexham |
Coal |
| W.C.S. Cunningham |
1 |
1890–1900 |
South Lanarkshire |
Coal, Fireclay |
| W.G. Cooke and Co. |
1 |
|
Derbyshire |
Calcite, Fluorspar, Lead |
| Waen Nantyglo Colliery Company |
2 |
1911–1947 |
Blaenau Gwent |
Coal |
| Waihi Investment and Development Company |
1 |
to 1958 |
Derbyshire |
Lead |
| Waldegrave family |
2 |
1793–1909 |
Somerset |
Coal |
| Waldegrave Lead Smelting Company |
1 |
1868–1881 |
Somerset |
Lead |
| Walker Coal Company |
1 |
1887–1920 |
Tyne and Wear |
Coal |
| Walker, Maynard & Co. |
1 |
1880–1886 |
North Yorkshire |
Ironstone |
| Wallace Brothers |
1 |
1890–1901 |
Fife |
Coal, Fireclay, Ironstone |
| Wallsend & Hebburn Coal Co. Ltd |
3 |
1890–1947 |
Tyne and Wear |
Coal |
| Walter and Henry Powell |
1 |
from 1872 |
Blaenau Gwent |
Coal |
| Walter Herd and Sons |
1 |
from 1880 |
Fife |
Coal |
| Walter Scott Ltd. |
2 |
1880–1937 |
County Durham |
Coal |
| Walton and Cooper |
1 |
1788–1870 |
Northumberland |
Barite, Lead, Witherite |
| Wanlockhead Lead-Mining Company Ltd |
1 |
1906–1931 |
Dumfries and Galloway |
Lead, Zinc |
| Ward Brothers |
1 |
1994–1998 |
Neath Port Talbot |
Coal |
| Wareham Oil and Candle Company |
1 |
1857–1872 |
Dorset |
Alum, Limestone, Oil Shale |
| Warren Vale Coal Company |
1 |
to 1943 |
South Yorkshire |
Coal |
| Warwickshire Coal Company Ltd |
1 |
1911–1924 |
Warwickshire |
Coal |
| Washington Coal Company Ltd |
2 |
1904–1947 |
Tyne and Wear |
Coal |
| Water House Mining Company |
1 |
1882–1890 |
Northumberland |
Lead, Umber |
| Watts and Company |
1 |
1872–1895 |
Rhondda Cynon Taf |
Coal |
| Watts, Ward & Co. |
1 |
from 1872 |
Caerphilly |
Coal |
| Waverley Mining Finance |
1 |
1994–1997 |
Midlothian |
Coal |
| Wayne's Merthyr Steam Coal and Iron Works Company |
1 |
1875–1892 |
Rhondda Cynon Taf |
Coal, Ironstone |
| Weardale Iron and Coal Company |
7 |
1850–1947 |
County Durham, North Yorkshire |
Coal, Ironstone, Fireclay |
| Weardale Lead Company |
14 |
1878–1948 |
County Durham, Northumberland |
Lead, Fluorspar, Zinc |
| Weardale Lead Mining Company Ltd |
2 |
from 1888 |
County Durham |
Lead, Fluorspar |
| Weardale Steel, Coal and Coke Co. Ltd |
1 |
1900–1935 |
County Durham |
Coal, Fireclay |
| Wearmouth Coal Company |
1 |
1897–1947 |
Tyne and Wear |
Coal |
| Wellingborough Iron Co. Ltd |
1 |
1889–1962 |
Northamptonshire |
Ironstone, Limestone |
| Welsh Anthracite Collieries, Ltd |
6 |
1925–1947 |
Powys, Neath Port Talbot, Carmarthenshire |
Coal, Anthracite, Fireclay |
| Welsh Associated Collieries Limited |
3 |
1929–1945 |
Rhondda Cynon Taf, Neath Port Talbot |
Coal, Fireclay |
| Welsh Crown Spelter Company |
1 |
1899–1905 |
Conwy |
Lead, Zinc |
| Welsh Granite Company |
1 |
1850–1911 |
Gwynedd |
Granite |
| Welsh Navigation Steam Coal Co. Ltd |
2 |
1901–1947 |
Rhondda Cynon Taf |
Coal |
| Welsh Slate Company |
2 |
1825–1883 |
Gwynedd |
Slate |
| Welsh Van Mining Co. Ltd |
1 |
1916–1922 |
Powys |
Barite, Lead, Silver |
| Wemyss Coal Company Ltd |
3 |
1898–1947 |
Fife |
Coal |
| Wentworth Silkstone Collieries Ltd |
1 |
1911–1947 |
South Yorkshire |
Coal |
| Wenvoe Iron Ore Company |
1 |
1859–1919 |
Vale of Glamorgan |
Iron |
| Wenvoe Red Haematite Iron Ore Company |
1 |
from 1864 |
Vale of Glamorgan |
Iron |
| Wernddu Railway and Colliery Company Limited |
1 |
from 1913 |
Neath Port Talbot |
Coal |
| West Australian Gold Field Company |
1 |
1904–1911 |
Cornwall |
Copper, Tin |
| West Cannock Collieries Company |
1 |
1869–1982 |
Staffordshire |
Coal |
| West Cumberland Iron and Steel Company Limited |
1 |
from 1880 |
Cumbria |
Coal, Fireclay |
| West Cumbria Mining |
1 |
2014–2025 |
Cumbria |
Coal |
| West Gonamena Mining Company |
1 |
1883–1886 |
Cornwall |
Copper, Tin |
| West Hartlepool Dock and Railway Company |
1 |
from 1855 |
County Durham |
Coal |
| West Tankerville Mining Company Ltd |
1 |
1870–1882 |
Shropshire |
Lead |
| West Yorkshire Iron and Coal Company |
1 |
1868–1885 |
Lincolnshire |
Ironstone |
| Westcott Mining Company |
1 |
1860–1872 |
Shropshire |
Barite, Copper |
| Westerhall Mining Company |
1 |
|
Dumfries and Galloway |
Antimony |
| Westminster Brymbo Coal and Coke Company |
2 |
1860–1925 |
Wrexham |
Coal |
| Weston Coyney and Cinderhill Colliery Company |
1 |
1850–1908 |
Staffordshire |
Coal |
| Wharncliffe Silkstone Colliery Company |
1 |
from 1890 |
South Yorkshire |
Coal |
| Wharncliffe Woodmoor Colliery Company |
1 |
1873–1947 |
South Yorkshire |
Coal |
| Wheal Agar Adventurers |
1 |
|
Cornwall |
Arsenic, Copper, Tin |
| Wheal Cunning United |
2 |
1872–1876 |
Cornwall |
Tin, Copper |
| Wheal Jewell and Mary Tavy Mines Limited |
1 |
1912–1932 |
Devon |
Arsenic, Tin |
| Wheal Kitty and Penhall's United Ltd |
1 |
1907–1930 |
Cornwall |
Copper, Tin |
| Whitburn Coal Company |
1 |
1874–1891 |
Tyne and Wear |
Coal |
| Whitby Stone Company |
1 |
1836–1862 |
North Yorkshire |
Iron |
| White and Co. |
1 |
from 1829 |
Somerset |
Coal |
| Whitecross Co., Ltd. |
1 |
1887–1903 |
Merseyside |
Coal |
| Whitehaven Colliery Company |
3 |
1840–1933 |
Cumbria |
Coal |
| Whitehaven Iron Mines Ltd |
3 |
1870–1877 |
Cumbria |
Iron |
| Whitfield Colliery Company Limited |
1 |
1867–1872 |
Staffordshire |
Coal |
| Whitwick Colliery Company Ltd |
1 |
1870–1947 |
Leicestershire |
Coal |
| Whitworth Collieries Limited |
1 |
1905–1911 |
Neath Port Talbot |
Coal |
| Wigan Coal & Iron Co. |
4 |
1880–1947 |
Greater Manchester, Lancashire, Merseyside |
Coal |
| Wigan Coal Corporation Ltd |
2 |
1930–1947 |
Greater Manchester |
Coal, Cannel Coal |
| William Ackroyd Brothers |
1 |
to 1909 |
West Yorkshire |
Coal |
| William Argall and Company |
1 |
1871–1889 |
Cornwall |
China Clay |
| William Baird & Company |
12 |
1860–1947 |
East Ayrshire, East Dunbartonshire, Highland |
Coal, Iron, Ironstone |
| William Barningham |
1 |
1863–1902 |
North Yorkshire |
Ironstone |
| William Benge |
1 |
from 1695 |
Kent |
Iron |
| William Benson and Sons |
1 |
1860–1947 |
Tyne and Wear |
Coal |
| William Bowen |
1 |
1741–1771 |
Kent |
Iron |
| William Chaytor |
1 |
1816–1855 |
County Durham |
Coal |
| William Coates |
1 |
1888–1890 |
County Durham |
Whinstone |
| William Colchester |
1 |
1845–1880 |
Suffolk |
Coprolite |
| William Cookworthy |
1 |
from 1746 |
Cornwall |
China Clay |
| William Corbett and John Paynter |
1 |
1748–1771 |
Ceredigion |
Lead, Silver |
| William Crawshay |
2 |
1841–1880 |
Forest of Dean, Merthyr Tydfil |
Coal |
| William Dixon |
2 |
1855–1874 |
Glasgow, West Lothian |
Coal, Ironstone |
| William Dixon Ltd |
4 |
1875–1957 |
South Lanarkshire, West Lothian |
Coal, Fireclay, Ironstone |
| William Dunn Gainsford |
1 |
1877–1926 |
South Yorkshire |
Coal |
| William Evans and Company |
1 |
to 1947 |
Somerset |
Coal |
| William Exley & Son |
1 |
1869–1940 |
Shropshire |
Brick Clay, Coal, Fireclay |
| William Hamilton and Co. |
1 |
from 1880 |
South Lanarkshire |
Coal |
| William Henry Gatty |
1 |
from 1866 |
Gwynedd |
Slate |
| William Heward Bell |
1 |
1850–1860 |
County Durham |
Coal, Fireclay |
| William Jones Brewer and Thomas Lewis |
1 |
1836–1841 |
Wiltshire |
Freestone |
| William Lawton Viggars |
1 |
1895–1903 |
Worcestershire |
Coal |
| William Lefeaux |
1 |
|
Powys |
Lead, Zinc |
| William Lemon |
1 |
from 1748 |
Cornwall |
Arsenic, Copper, Tin |
| William Lewis, 1st Baron Merthyr |
2 |
1903–1909 |
Caerphilly, Rhondda Cynon Taf |
Coal |
| William Meredith |
1 |
1858–1865 |
Merthyr Tydfil |
Coal |
| William Ord |
1 |
from 1854 |
Northumberland |
Lead |
| William Orde-Powlett, 2nd Baron Bolton |
1 |
from 1848 |
North Yorkshire |
Lead, Zinc |
| William Perch Limited |
1 |
1915–1947 |
Neath Port Talbot |
Coal |
| William Pritchard Morgan |
2 |
1887–1924 |
Gwynedd |
Gold, Lead, Silver |
| William Ramsden and Sons |
1 |
1861–1935 |
Greater Manchester |
Coal |
| William Rigby and Co. |
2 |
1853–1905 |
Staffordshire |
Coal |
| William Roberts / Clogau Gold of Wales Ltd |
1 |
1989–1998 |
Gwynedd |
Copper, Gold |
| William Russell |
1 |
1820–1850 |
Tyne and Wear |
Coal |
| William Sarl |
1 |
1856–1861 |
Wiltshire |
Iron |
| William Soresby |
1 |
1746–1749 |
Derbyshire |
Lead |
| William Stenson |
1 |
1822–1861 |
Leicestershire |
Coal |
| William Taylor |
1 |
from 1893 |
East Ayrshire |
Coal |
| William Thirlby |
1 |
from 1825 |
Leicestershire |
Coal, Fireclay |
| William Thomas of Waun Wyllt |
1 |
1843–1865 |
Rhondda Cynon Taf |
Coal |
| William Turner |
2 |
1816–1854 |
Gwynedd |
Slate |
| William Turner |
1 |
1830–1847 |
Lancashire |
Coal |
| William Veitch |
1 |
1880–1895 |
Conwy |
Pyrite |
| William Waller |
1 |
to 1694 |
Powys |
Copper, Lead |
| William Waller's Mine Adventurers |
2 |
1698–1722 |
Ceredigion |
Lead, Copper, Silver |
| William Wharton Burdon |
1 |
1796–1900 |
Tyne and Wear |
Coal |
| William Williams Jones |
1 |
from 1892 |
Gwynedd |
Granite |
| William Winn |
1 |
to 1888 |
North Yorkshire |
Whinstone |
| William Wood & Sons |
1 |
from 1900 |
Northumberland |
Coal |
| William Woods and Sons |
1 |
1855–1930 |
Greater Manchester |
Coal |
| Williams brothers of Scorrier |
1 |
from 1828 |
Ceredigion |
Lead, Silver |
| The Williams family |
1 |
1853–1970 |
Gwynedd |
Slate |
| Williams family of Llanfrothen |
1 |
1845–1870 |
Ceredigion |
Lead, Zinc |
| Williamson & Eyton |
1 |
1839–1848 |
Powys |
Copper, Lead |
| Wilson family |
1 |
from 1827 |
Cumbria |
Fluorspar, Lead |
| Wilsons & Clyde Coal Co Ltd |
3 |
1894–1947 |
South Lanarkshire, Fife |
Coal, Ironstone |
| Wiltshire Iron Company |
1 |
1861–1890 |
Wiltshire |
Iron |
| Windsor Colliery Co. Ltd |
1 |
1895–1932 |
Caerphilly |
Coal |
| Wingate Grange Coal Company |
1 |
|
County Durham |
Coal |
| Wingerworth Coal Company |
1 |
1867–1900 |
Derbyshire |
Coal |
| Wolf Minerals (UK) Ltd |
1 |
2007–2018 |
Devon |
Tin, Tungsten |
| Wollaton Colliery Company |
1 |
1873–1947 |
Nottinghamshire |
Coal |
| Wombwell Main Coal Company |
1 |
|
South Yorkshire |
Coal |
| Woodilee Coal and Coke Co. Ltd |
2 |
to 1930 |
East Dunbartonshire |
Coal, Ironstone |
| Woolley Coal Company |
1 |
1854–1894 |
South Yorkshire |
Coal |
| Wotherton Barytes and Lead Mining Company |
1 |
from 1910 |
Shropshire |
Barite, Copper |
| Wright, Butler and Co. Ltd |
1 |
to 1902 |
Swansea |
Coal |
| Writhlington Collieries |
1 |
1875–1947 |
Somerset |
Coal |
| Writhlington Colliery Co. |
1 |
1880–1947 |
Somerset |
Coal |
| Wyken Colliery Co. |
1 |
|
West Midlands |
Coal |
| Wylam Coal Company |
1 |
1880–1888 |
Northumberland |
Coal |
| Wyndham Mining Company Ltd |
1 |
1901–1918 |
Cumbria |
Iron |
| Wythburn Lead Mining Company |
1 |
from 1861 |
Cumbria |
Lead |
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