Hotspur existed in the early 1980's, producing
25mm Medieval and 20mm Modern ranges. The partners were John Bruce (who went on to MLR, and is now at Figures Armour Artillery [FAA]) and Dave Allsop (who died in a car accident in the USA some years ago).
The Spanish Civil War figures from Hotspur, sculpted by Dave Allsop,
are now owned by Pat Condray of the Historical Products Company. Rolf Hedges of Bandera
Miniatures has a license from HPC to also produce and sell these figures.
All of the other Hotspur ranges are now made by Old Glory/Emperor's Headquarters.
Some Hotspur figures are also manufactured by Battleline Miniatures.