Renishaw plc (LSE: RSW) is an engineering company based in Wotton-under-Edge in Gloucestershire, England.
It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.
The Company was founded by Sir David McMurtry and John Deer in 1973.
McMurtry had needed to measure fuel pipes on a prototype jet engine: at the time, coordinate-measuring machine sensors featured rigid styli, which required manual positioning on the surface and which yielded poor repeatability when measuring delicate components.
To meet this need, McMurtry invented a touch-trigger probe device, which he then patented.
The probe featured an elegant 'kinematic' location for a spring-loaded stylus, providing a highly repeatable seated position for the stylus combined with the compliance needed to measure such components.
Renishaw was first listed on the London Stock Exchange in 1983.