Overview
Mirion Technologies, Inc. is a global provider of radiation detection, measurement, analysis and monitoring products and services for medical, nuclear and defense applications. Its two principal businesses are Medical, including products used in radiation oncology, medical dosimetry and radionuclide therapy, and Nuclear & Safety, which supplies radiation detection equipment and instrumentation for nuclear power, laboratories, research and other safety applications. Mirion states its mission is “to harness our unrivaled knowledge of ionizing radiation for the greater good of humanity.” [1][2]
Headquartered in Atlanta, Mirion reports approximately 2,800 employees and operations in 12 countries; its products and services have historically reached customers in more than 120 countries. Revenue was $925.4 million in fiscal 2025, the latest full-year figure identified in the available company reporting.[3][4][5] [1][3][4][2][5]
Products & services
Mirion Technologies’ Nuclear & Safety products include reactor instrumentation and radiation monitoring systems, from core detectors and neutron-flux monitoring to equipment used for plant maintenance, decommissioning, and environmental monitoring [6][7]. Examples include the SRM 510 source-range monitor for reactor startup, PRM 510 power-range monitor, and DAK 260 digital startup channel [8][9][10]. Other offerings include the RDS-32 handheld survey meter, which measures dose-equivalent rate and has IP67 protection, and SPIR-Ace radionuclide-identification equipment, available with NaI or LaBr₃ detectors and optional neutron detection [11][12].
Medical products cover radiation-therapy quality assurance, occupational dosimetry, and nuclear-medicine instrumentation [13][6]. SunCHECK software supports patient and machine QA, including treatment-plan checks and pretreatment verification; SunSCAN 3D is a water-scanning system for beam commissioning and annual QA [14][15]. The Instadose2 wireless dosimeter measures deep Hp(10) and shallow Hp(0.07) photon/beta dose, with a listed useful range of 10 mrem to 500 rem [16]. Nuclear-medicine examples include the CRC-55tW dose calibrator/well counter and Captus 4000e thyroid uptake system [17][18].
Services include equipment implementation and startup support, consultation, maintenance, calibration, repair, spare parts, and training; reactor services also include on-site calibration, maintenance, leak detection, and repair [19][20][21]. Dosimetry services include supplying and processing personal dosimeters and providing exposure reports and online records [22][23]. In FY2025, Nuclear & Safety accounted for 66.4% and Medical for 33.6% of revenue; these are segment shares, not percentages for individual products [4]. [6][7][13][4][8][9][10][11][12][14][15][16][17][18][19][20][21][22][23]
Geographic presence
In FY2025, approximately 48% of Mirion Technologies’ revenue came from customers in the United States and Canada, 33% from Europe, and 17% from Asia Pacific. These are approximate regional figures; the cited disclosure does not provide a country-level revenue breakdown.[24]
Mirion operates facilities in 12 countries: the United States, Canada, the United Kingdom, France, Germany, Finland, China, Belgium, the Netherlands, Estonia, Japan, and South Korea. Its headquarters are in Atlanta, Georgia. The company leases administrative, engineering, production, and warehouse space across these countries and owns facilities in Belgium, France, Canada, and the United States. Whole-body monitors are produced exclusively in Ontario, Canada.[24][25][26][27] [24][25][26][27]
Business segments
Mirion Technologies reports two operating and reportable segments: **Nuclear & Safety** and **Medical**. Nuclear & Safety provides radiation-detection equipment and analysis tools for nuclear power plants, laboratories and research facilities, as well as industrial and defense applications. Medical provides radiation-safety products and services for medical equipment and personnel, including cancer-care and radiation-therapy quality assurance, nuclear-medicine products, and dosimetry. The CEO/CODM reviews these segments for performance and resource allocation; the former segment name “Technologies” was changed to “Nuclear & Safety.” [28][29][13]
For the six months ended June 30, 2026, Nuclear & Safety contributed $371.7 million, approximately **70.9%** of consolidated revenue, and Medical contributed $152.7 million, approximately **29.1%**. For full-year 2025, the respective contributions were approximately **66.4%** ($614.3 million) and **33.6%** ($311.1 million).[30][4] The company also disaggregates revenue into product groupings—not additional reportable segments—including Nuclear, Labs and research, and Other within Nuclear & Safety, and Cancer care and Other within Medical. For H1 2026, these represented approximately 46.5%, 10.9%, 13.4%, 22.5%, and 6.6% of consolidated revenue, respectively.[31] [28][29][13][30][4][31]
Company history
Mirion Technologies was formed in 2005 through the merger of Global Dosimetry Solutions, Imaging and Sensing Technologies, and Synodys. Thomas D. Logan became its founding chairman and CEO; the businesses brought together had roots in radiation-related industries dating back decades.[32][33][2] In 2016, Mirion acquired Canberra Industries and Canberra France, expanding its radiation detection and measurement operations.[32][34]
Mirion expanded into medical radiation quality assurance with its 2021 acquisition of Sun Nuclear. That year, it completed a business combination with GS Acquisition Holdings Corp. II and began trading on the New York Stock Exchange as MIR.[35][36][37] In 2022, it brought several medical businesses together under the Mirion Medical brand; in 2023, the acquisitions of ec² Software Solutions and NUMA added nuclear-medicine and molecular-imaging software.[38][39] More recently, Mirion acquired Certrec in 2025, adding nuclear regulatory-compliance and digital solutions, and completed its acquisition of Paragon Energy Solutions, broadening its nuclear-power offerings.[40][41][42][43] [32][33][2][34][35][36][37][38][39][40][41][42][43][2][34][35][36][37][38][39][40][41]
Sources
- Mirion Technologies, Inc. — Full financial report (2025 Y)
- www.mirion.com[2]
- ir.mirion.com[5]
- Mirion Technologies, Inc. — Full financial report (2026 Q 2)
- www.mirion.com[8]
- www.mirion.com[9]
- www.mirion.com[10]
- www.mirion.com[11]
- www.mirion.com[12]
- www.mirion.com[14]
- www.mirion.com[15]
- www.mirion.com[16]
- www.mirion.com[17]
- www.mirion.com[18]
- www.mirion.com[19]
- www.mirion.com[20]
- www.mirion.com[21]
- www.mirion.com[22]
- www.mirion.com[23]
- Mirion Technologies, Inc. — Full financial report (2021 Y)[32][33]
- ir.mirion.com[34]
- www.mirion.com[35]
- www.mirion.com[36]
- ir.mirion.com[37]
- ir.mirion.com[38]
- ir.mirion.com[39]
- ir.mirion.com[40]
- ir.mirion.com[41]
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