Operators
Companies and organisations that worked published mines, where that history is known.
13 operators beginning with I, of 1903.
| Operator | Mines | Active | Regions | Commodities |
|---|
| I. and W. Fletcher and Company |
1 |
from 1860 |
Cumbria |
Coal, Fireclay |
| Ibstock Collieries Ltd |
1 |
|
Leicestershire |
Coal, Fireclay |
| Imerys |
1 |
from 1999 |
Devon |
China Clay |
| Imperial Chemical Industries |
6 |
1926–1992 |
Derbyshire, Cheshire, North Yorkshire |
Salt, Limestone, Anhydrite |
| Imperial Navigation Coal Company Limited |
2 |
1917–1935 |
Neath Port Talbot |
Coal |
| Imperial Salt and Alkali Company |
1 |
1830–1857 |
Worcestershire |
Salt |
| Inigo Jones and Company |
1 |
from 1918 |
Gwynedd |
Slate |
| International Water and Sewage Purification Company |
1 |
1887–1891 |
Powys |
Coal |
| Irish Salt Mining & Exploration Company Ltd |
1 |
from 1965 |
County Antrim |
Salt |
| Irving & Co. |
1 |
from 1860 |
Cumbria |
Coal |
| Islay Lead Mining Company Ltd |
1 |
1872–1900 |
Argyll and Bute |
Lead, Silver |
| Isle of Man Mining Company |
4 |
1828–1911 |
Isle of Man |
Lead, Zinc, Silver |
| Islip Iron Co. Ltd |
1 |
1869–1932 |
Northamptonshire |
Iron, Limestone |
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