John Deer, left, and Sir David McMurtry co-founded Renishaw in 1973
The founders of a Gloucestershire-based engineering firm are to be awarded a medal by the Institute of Physics.
Renishaw chairman and chief executive Sir David McMurtry and deputy chairman John Deer co-founded the company, based in Wotton-under-Edge, in 1973.
They will be presented with the Swan medal at a ceremony in October.
The award recognises "outstanding contributions to the organisation or application of physics in an industrial or commercial context".
Renishaw specialises in industrial measuring equipment.
The Swan Medal citation recognises the men for their role in leading the firm "to become one of the world's principal manufacturers of metrology equipment".
Previously known as the Business and Innovation Medal, the Swan medal is named in recognition of physicist and chemist Sir Joseph Swan, who invented the incandescent light bulb.