Launched in the tumultuous 1940s, RPI largely produced metrology equipment in its early years, as well as manufacturing various other products required for the Second World War. From this platform, the organisation was able to forge a lucrative partnership with Rolls Royce, and the British manufacturer remains a key customer for RPI to this very day. These foundational successes eventually saw the firm acquired by an external investor, before being re-purchased in 2011 and returning to its roots as a family-run business.

RPI, the world’s largest manufacturer of high precision rotary measurement and angular positioning devices, today (6 January 2025), announced that it had increased its turnover by 55% last year and the installation of its 3,000th device.