Renishaw plc
British engineering technology company specializing in precision measurement, manufacturing technology, additive manufacturing, and selected healthcare systems.
Last updated November 4, 2026
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Overview
Renishaw plc is a British engineering technology company headquartered near Wotton-under-Edge in Gloucestershire, England. Its principal activities center on precision measurement and manufacturing systems used by aerospace, automotive, medical, electronics, energy, research, and general industrial customers. The company is best known for technologies that allow machines and components to be measured, calibrated, inspected, and manufactured with high repeatability. Renishaw originated from an engineering problem encountered by its co-founder Sir David McMurtry while he was working on a prototype jet engine. Conventional coordinate-measuring-machine probes used rigid styli that could be difficult to position consistently against delicate or complex components. McMurtry developed a touch-trigger probe using a spring-loaded stylus and a repeatable kinematic seating arrangement. The invention provided a practical way to detect contact accurately while reducing measurement variation, and it became the foundation of the company established by McMurtry and John Deer in 1973. The business has expanded from probing into a broad portfolio of metrology and manufacturing technologies. Its products include coordinate-measuring-machine probes and systems, touch probes for computer numerical control machine tools, laser and other calibration systems, linear and rotary encoders, and software used to collect and interpret measurement data. These technologies support dimensional inspection, machine positioning, process control, tool setting, and the calibration of industrial equipment. Renishaw also supplies styli and other accessories, including precision components used with metrology systems. Another important business is additive manufacturing. Renishaw develops metal powder-bed-fusion systems and related software, materials, process-monitoring, and production-support technologies. These systems are intended for the controlled manufacture of complex metal components, particularly where design freedom, lightweight structures, customization, or production of difficult geometries is valuable. The company also operates in dental CAD/CAM and healthcare-related technology, including systems and devices associated with dental production and functional neurosurgery applications. Raman spectroscopy adds an analytical capability for identifying and characterizing materials. Renishaw has built an international operating footprint while retaining substantial research, engineering, manufacturing, and assembly activity in the United Kingdom. Facilities and operations described for the company include sites in Gloucestershire, Wales, Ireland, India, Edinburgh, and Ljubljana. The company has also acquired or developed specialist capabilities, including precision styli, surveying-related measurement services, and manufacturing capacity. Its acquisition of the German precision-styli manufacturer itp in 2006 and later control of Measuring Devices Ltd broadened its metrology offering. Renishaw became publicly traded during the 1980s, first entering the Unlisted Securities Market in 1983 and receiving a full London Stock Exchange listing in November 1984. It is included in the FTSE 250 index according to the cited reference material. In 2021, founders and major shareholders David McMurtry and John Deer announced that they wished to dispose of their combined holdings, representing approximately 53 percent of the company’s shares at the time. Renishaw initiated a formal sale process, but terminated it in July 2021 after concluding that the proposals received did not meet the board’s objectives. The company therefore continued as an independently listed business rather than being sold through that process. Renishaw’s positioning is based on engineering depth, precision, proprietary technology, and close integration with customers’ production and inspection workflows. Rather than operating primarily as a consumer-facing brand, it sells specialized equipment, software, components, and services to industrial and professional users. Its commercial value lies in helping customers improve accuracy, repeatability, productivity, quality assurance, and the manufacturability of advanced components.
History
Renishaw was founded in 1973 by engineer Sir David McMurtry and John Deer. The company’s origin is closely linked to McMurtry’s work on a prototype jet engine, where he needed to measure fuel pipes and other delicate components more reliably. At the time, coordinate-measuring-machine sensors commonly used rigid styli that required manual positioning and could produce inconsistent results. McMurtry designed a touch-trigger probe with a spring-loaded stylus and a kinematic location mechanism. The stylus could deflect during contact while returning to a highly repeatable seated position, allowing the probe to detect points on a component with improved consistency. The invention was patented and became the technological basis for Renishaw’s early business. During its first decade, Renishaw developed measurement products for industrial users and expanded its role in coordinate metrology. The company entered the Unlisted Securities Market in 1983 and obtained a full listing on the London Stock Exchange in November 1984. Public ownership gave Renishaw access to capital while the company continued to focus on specialized engineering products rather than mass-market manufacturing. It later became associated with the FTSE 250 index. Renishaw broadened its capabilities through internal development and acquisitions. In 2006 it acquired itp, a German manufacturer of precision styli, strengthening its range of accessories and components for metrology. In 2010 it purchased a stake in Measuring Devices Ltd and subsequently took complete control. Measuring Devices provided services connected with surveying equipment and added a service and measurement dimension to Renishaw’s activities. In 2011, Renishaw acquired a large Bosch plant at Miskin in Wales, creating additional manufacturing capacity. The company’s product scope subsequently covered several connected areas of industrial technology. Coordinate-measuring-machine systems and probes support dimensional inspection of manufactured parts. CNC machine-tool products, including touch probes and tool-setting systems, help automate setup, measurement, and process control on machine tools. Linear and rotary encoders provide position feedback for machine axes and other precision equipment. Calibration systems are used to evaluate and optimize CNC-machine performance. Together, these products address the production chain from machine positioning and setup through final inspection. Renishaw also developed a substantial additive-manufacturing activity based on metal systems. Its equipment and associated technologies are intended to build components layer by layer from metal powder under controlled process conditions. The business has targeted demanding industrial applications in which complex shapes, low-volume production, customization, or material efficiency can justify additive methods. In adjacent areas, Renishaw has supplied dental CAD/CAM technology, Raman spectroscopy systems for material analysis, and medical devices for functional neurosurgery applications. The company’s operations have remained strongly connected to the United Kingdom. Its main offices are located on a site near Nailsworth in Gloucestershire that includes an adapted watermill and newer buildings. Other facilities described in the company’s history include a machine shop at Stonehouse, an assembly facility at Woodchester, further assembly operations in Dublin and Pune, and research facilities in Wotton-under-Edge, Edinburgh, and Ljubljana. This network supports research, product engineering, manufacturing, assembly, and international customer service. The 2008–2009 global recession created pressure across the industrial sector. In early 2009, a large proportion of Renishaw’s workforce was placed at risk as the downturn affected demand. The episode illustrates the company’s exposure to capital-equipment cycles, even though its specialized products serve multiple industries and geographic markets. A major strategic event occurred in 2021. McMurtry and Deer announced on 2 March that they wished to sell their entire holdings, stating that they recognized they were no longer getting younger. Their combined stake was approximately 53 percent of Renishaw’s shares, prompting the board to launch a formal sale process for the entire company. On 7 July 2021, the board terminated the process after deciding that none of the proposals met its objectives. Renishaw consequently remained an independently listed engineering company. Today, Renishaw’s identity is that of a specialist industrial-technology manufacturer rather than a consumer brand. Its core proposition is the improvement of accuracy, repeatability, productivity, and quality assurance in advanced manufacturing and measurement. The company combines hardware, software, sensors, calibration, inspection, and application expertise, with additional activities in additive manufacturing, dental technology, spectroscopy, and neurosurgical devices.
- 2021
Formal sale process begins
[1]The board launches a formal process after founders and major shareholders announce their intention to sell their combined holding.
- 2021
Formal sale process ends
[1]The board terminates the process after concluding that the proposals did not meet its objectives.
- 2011
Acquisition of the Miskin plant
[1]Renishaw purchases a 400,000-square-foot Bosch plant at Miskin in Wales.
- 2010
Expansion into surveying-related measurement services
[1]Renishaw acquires a stake in Measuring Devices Ltd and later takes full control.
- 2009
Recession-related workforce measures
[1]The global recession affects the company, with a large proportion of employees placed at risk.
- 2006
Acquisition of itp
[1]Renishaw acquires German precision-styli manufacturer itp, expanding its metrology accessory capabilities.
- 1984
Full London Stock Exchange listing
[1]The company gains a full listing on the London Stock Exchange in November.
- 1983
Admission to the Unlisted Securities Market
[1]Renishaw begins trading on the Unlisted Securities Market as it develops into a public engineering company.
- 1973
Renishaw is founded
[1]Sir David McMurtry and John Deer establish Renishaw after McMurtry develops a repeatable touch-trigger probe for coordinate measurement.
Products and positioning
A precision-engineering and industrial-technology specialist focused on measurement, machine control, inspection, additive manufacturing, and selected healthcare applications.
Industrial metrology
Coordinate-measuring-machine systems and probes
Renishaw’s coordinate-measuring-machine portfolio includes probing systems, styli, and related technologies for capturing the dimensions and geometry of manufactured parts. These products are used for inspection, quality assurance, and reverse-engineering workflows where repeatability and accurate contact detection are important.
Machine-tool technology
CNC machine-tool probing and tool-setting systems
These systems provide automated probing, tool measurement, workpiece setup, and in-process inspection on CNC machine tools. They help manufacturers reduce manual measurement, improve setup consistency, detect process variation, and support closed-loop production control.
Position measurement
Linear and rotary encoders
Renishaw’s encoder systems measure linear and rotary position for precision machinery and motion systems. Encoder feedback is used by machine controllers to determine movement accurately, supporting applications in machine tools, automation, semiconductor-related equipment, and other high-precision systems.
Machine calibration
Calibration systems
Calibration products assess and help optimize the geometric and positioning performance of CNC machinery. They are used by manufacturers and service organizations to verify machine accuracy, diagnose errors, and maintain consistent production performance.
Additive manufacturing
Metal additive-manufacturing systems
Renishaw develops metal additive-manufacturing machines and associated process technologies for producing components layer by layer from metal powder. The systems are aimed at industrial applications requiring complex geometries, customization, lightweight structures, or production routes that are difficult to achieve through conventional machining.
Dental technology
Dental CAD/CAM systems
The dental business provides digital design and manufacturing technology for dental applications. CAD/CAM workflows can connect digital design with the production of dental components, supporting laboratories and other professional users that require repeatable computer-assisted production.
Analytical instrumentation
Raman spectroscopy systems
Raman spectroscopy products use optical analysis to help identify and characterize materials. They serve scientific, industrial, and research users that need non-destructive or comparatively rapid information about chemical composition and material properties.
Medical technology
Functional neurosurgery devices
Renishaw has developed medical devices for functional neurosurgery applications. This activity extends the company’s precision-engineering capabilities into healthcare, where accurate positioning and specialized instrumentation are important to clinical procedures.
Brand decisions
2021
Launch of a formal company sale processM&ABackground
Founders and major shareholders Sir David McMurtry and John Deer indicated that they wanted to dispose of their entire holdings, representing approximately 53 percent of Renishaw’s shares.
Action taken
The board launched a formal process to evaluate proposals for the acquisition of the entire company.
Aftermath
On 7 July 2021, the board terminated the process after deciding that none of the proposals met its objectives. Renishaw remained independently listed.
2011
Purchase of the Miskin manufacturing plantM&ABackground
Renishaw sought additional manufacturing capacity as its industrial technology portfolio expanded.
Action taken
The company purchased the 400,000-square-foot Bosch plant at Miskin in Wales.
Aftermath
The site became part of Renishaw’s manufacturing footprint in the United Kingdom.
2006
Acquisition of itpM&ABackground
Precision styli are important components of coordinate-measurement and inspection systems.
Action taken
Renishaw acquired itp, a German manufacturer of precision styli.
Aftermath
The acquisition strengthened Renishaw’s range of metrology accessories and precision-styli capabilities.
Recent events
- 2021
Renishaw enters a formal sale process[1]
M&A
Founders and major shareholders Sir David McMurtry and John Deer indicated that they wanted to dispose of their entire holdings, which represented approximately 53 percent of Renishaw’s shares. The board subsequently launched a formal process to consider a sale of the company.
- 2021
Renishaw terminates its formal sale process[1]
M&A
Renishaw ended the sale process after the board concluded that the proposals received did not satisfy its objectives. The company continued as an independently listed business.
- 2009
Renishaw workforce affected by the global recession[1]
Other
The global recession reached Renishaw and a large proportion of the workforce was placed at risk, according to the cited company history.
Sources2 sources
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