Pretty sure Fox's is K&K.
Germain's is British, but made in Jersey rather than England (Esoterica is the name of some of the tobaccos they sell in the US, among others).
Gawith & Hoggarth and Samuel Gawith were different companies (after a split generations ago), but are now owned by the same people (the Gawith family).
Wilson of Sharrow also have a range of tobaccos but I think they're produced in Eastern Europe (and I don't really rate them).
There used to be plenty of others (Ogden's, Murray's, Gallaher's, Rattray's to name a few) but sadly the above are all we're left with now.