What PTW Freiburg does

PTW Freiburg GmbH is a family-owned German medical technology company headquartered in Freiburg im Breisgau, founded in 1908, that designs, manufactures, and supports precision dosimetry solutions for radiation medicine. The company operates across four end markets - radiation therapy, diagnostic imaging, metrology, and radiation monitoring - serving hospitals, clinics, national metrology institutes, and individual medical physicists in more than 160 countries. The product architecture is platform-plus-modules: precision hardware (ionization chambers including Farmer, Semiflex 3D, PinPoint 3D, Roos, Bragg Peak; diamond and silicon detectors such as flashDiamond, microDiamond, and microSilicon; water phantoms BEAMSCAN and BEAMSCAN MR; modular QA phantoms OCTAVIUS 4D and RUBY; and reference-class UNIDOS Tango/Romeo electrometers), software (VERIQA patient QA with 3D EPID and Monte Carlo dose calculation, UNICHECK web-based daily QA, Track-it QA data management, NOMEX multimeter/dosemeter systems, AIQUALIS AI-contouring QA, and DIAMENTOR patient dosimetry), and recurring services including an ISO 17025 accredited calibration laboratory performing 12,000+ calibrations annually, tiered service contracts, DaaS, MTK metrological controls, and the PTW Dosimetry School education program.

Revenue is generated across multiple streams: capital hardware sales of detectors, phantoms, and electrometers (direct and via a 160-country distributor network plus 12 international branch offices); software subscriptions for QA data management, patient QA, and detector control; professional services in calibration and metrology; service contracts in Bronze/Silver/Gold tiers; and education revenue from training. The customer base is horizontal across radiation oncology and diagnostic imaging departments, with go-to-market split between direct enterprise field sales for complex configurations and channel partners for mid-market reach. Pricing is not publicly disclosed and is handled through a quotation request system. PTW maintains 90% in-house development and production across three sites, complies with dominant international dosimetry standards (IEC 61674, IEC 60731, AAPM TG-51, IAEA TRS-398, DIN 6800-2), and since 2020 has held a strategic share in phantom manufacturer QRM with exclusive worldwide distribution rights.

Name

PTW Freiburg

Legal name

PTW Freiburg GmbH

Website

https://ptwdosimetry.com

Company type

Private

Founded year

1908

Operating status

Operating

Headcount range

251–500 employees

Short description

PTW Freiburg is a family-owned German manufacturer of precision dosimetry hardware, phantoms, and QA software for radiation therapy and diagnostic imaging, serving hospitals and medical physicists in 160+ countries through 12 branch offices and ISO 17025 accredited calibration services.

Ownership category

akta.pro rank

Product category

Medical Dosimetry Equipment

NAICS

Irradiation Apparatus Manufacturing (334517), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345), Surgical and Medical Instrument Manufacturing (339112), Testing Laboratories and Services (54138)

SIC

X-Ray Apparatus & Tubes & Related Irradiation Apparatus (3844), Surgical & Medical Instruments & Apparatus (3841), Services-Testing Laboratories (8734)

akta.pro primary industry

Radiation Detection Instruments & Systems (Portal monitors, spectrometers, contamination monitors) (EUAKAIAK)

akta.pro secondary industries

Radiation Measurement, Dosimetry & Monitoring Services (Personal/environmental dosimetry, calibration labs) (EUAKAIAH), Radiation Safety, Dosimetry & Regulatory Compliance (Nuclear Medicine) (HLAIAGAJ)

Keywords

• Radiation dosimetry equipment
• Medical physics instrumentation
• Quality assurance phantoms
• Radiation therapy QA
• Diagnostic imaging dosimetry

Headquarters

HQ city

Freiburg Im Breisgau

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Hardware Sales - Detectors and Phantoms: Sale of dosimetry equipment including ionization chambers, semiconductor detectors, water phantoms, QA phantoms, and electrometers. Products sold directly and through distribution network.
2. Software Solutions: Software products for QA data management (Track-it), patient QA (VERIQA), beam scanning (BEAMSCAN software), and detector control.
3. Calibration Services: One of the largest dosimetry calibration labs worldwide with over 12,000 calibrations per year. Includes DaaS (Dosimetry as a Service) and MTK (metrological controls) in Germany.
4. Education and Training: Dosimetry School offering courses, seminars, workshops and training sessions for medical physicists. Includes certification and CE credits.
5. Service Contracts: Bronze, Silver, and Gold tier service contracts for equipment maintenance and support.

Go-to-market motion2 records

Distribution channels7 records

Marketing channels8 records

Core offering

PTW Freiburg designs, manufactures, and distributes high-precision dosimetry and quality assurance equipment for radiation medicine. Its portfolio spans ionization chambers, semiconductor and diamond detectors, water and modular QA phantoms, reference-class electrometers, and dedicated software platforms (VERIQA, Track-it, UNICHECK, AIQUALIS) for radiation therapy and diagnostic imaging. The company complements hardware sales with an ISO 17025 accredited calibration laboratory performing 12,000+ calibrations annually and a global Dosimetry School offering clinical training for medical physicists.

Product overview

PTW Freiburg is a family-owned global market leader in dosimetry solutions for radiation medicine, operating across four markets: radiation therapy, diagnostic imaging, metrology, and radiation monitoring. The product portfolio is organized as a platform-plus-modules architecture combining precision hardware, software, and services. In radiation therapy QA, the core hardware offerings center on the BEAMSCAN automated water phantom family (including BEAMSCAN MR for MR-guided radiotherapy) for beam scanning and commissioning, complemented by the OCTAVIUS 4D and RUBY modular phantom systems for patient-specific and rotational therapy QA, alongside a broad range of ionization chambers (Farmer, Semiflex 3D, PinPoint 3D, Roos, Bragg Peak) and diamond/semiconductor detectors (flashDiamond, microDiamond, microSilicon). The VERIQA modular patient QA platform provides 3D EPID in vivo dosimetry and Monte Carlo-based dose verification, while UNICHECK offers web-based daily QA. In diagnostic imaging, the NOMEX Multimeter and NOMEX Dosemeter form an integrated system for reference dosimetry and QC across RAD, FLU, DENT, CT, MAM, and IGRT, supported by the SFD diagnostic chamber, NOMEX SL Survey Detector, and NOMEX mAs meter. QA data management is handled by Track-it software. Across both domains, the UNIDOS Tango & Romeo reference-class electrometers provide primary measurement standards. PTW also operates a major ISO 17025 accredited calibration laboratory (12,000+ calibrations/year), the PTW Dosimetry School (founded 2014) providing instructor-led and virtual training, and offers service contracts and technical support globally.

Differentiator

Problem solved

Functional benefit

Brands

• BEAMSCAN: Water phantoms for radiation therapy measurements
• VERIQA
• UNICHECK
• RUBY
• NOMEX
• Track-it
• flashDiamond
• UNIDOS Tango & Romeo
• AIQUALIS
• Dosimetry School

Products and services

• BEAMSCAN Automated water phantom system for radiation therapy beam scanning, commissioning, and quality assurance. Supports beam data acquisition for treatment planning systems. Used by medical physicists in hospitals and clinics.
• BEAMSCAN MR Water phantom system designed for MR-guided radiotherapy (MRgRT) quality assurance, enabling beam scanning in the presence of magnetic fields.
• VERIQA Modular patient QA platform supporting 3D EPID in vivo dosimetry, Monte Carlo dose calculation, and patient-specific QA workflows across multiple treatment machines. Used by radiation therapy centers and medical physics teams.
• UNICHECK Web-based daily QA solution for radiation therapy machines, providing wireless and automated daily quality assurance checks.
• RUBY Modular QA phantom system for end-to-end testing, CT/MRI registration verification, and QA of multi-metastases treatment techniques and rotational therapies.
• OCTAVIUS 4D 4D QA phantom system for patient-specific and rotational IMRT/VMAT QA, supporting volumetric dose verification synchronized with treatment delivery.
• Electron Density Phantom Classical shape phantom used for electron density calibration and QA of CT-based treatment planning systems.
• flashDiamond Diamond-based radiation detector for dosimetry measurements in radiation therapy applications.
• UNIDOS Tango & Romeo Reference-class electrometers for primary dosimetry standards, suitable for air kerma measurements in radiotherapy and orthovoltage therapy following IEC 60731.
• Track-it QA data management platform for collecting, analyzing, and archiving dosimetry and quality assurance data across PTW and third-party instruments.
• AIQUALIS Software tool for monitoring AI contouring quality in clinical practice, helping streamline workflows where AI-based contouring is used in radiation therapy planning.
• NOMEX Multimeter Fully automated multimeter dosimetry system for X-ray measurements in diagnostic radiology, supporting RAD, FLU, DENT, CT, MAM, and IGRT modalities. Captures dose, dose rate, kV, HVL, total filtration, and waveforms in a single exposure.
• NOMEX Dosemeter High-performance dosimetry system for reference dosimetry and quality control in X-ray diagnostic radiology, CE marked class IIb certified, compliant with IEC 61674.
• Semiflex 3D Ion Chamber 31021 Vented, waterproof, fully guarded cylindrical ionization chamber with true 3D geometry (0.07 cm³) for relative and reference dosimetry in water or solid-state phantoms, suitable for photon and electron beams down to 2.5 cm × 2.5 cm fields.
• SFD Diagnostic Chamber 34060 Shadow-free plane-parallel ionization chamber (75 cm³) for absolute dosimetry in diagnostic radiology, designed for use with automatic exposure/brightness control systems.
• NOMEX SL Survey Detector Semiconductor-based survey detector for scatter and leakage radiation measurements in diagnostic X-ray applications, used in combination with the NOMEX Dosemeter.
• NOMEX mAs Smart mAs Meter Smart mAs meter supporting both invasive and non-invasive current-time product measurements on diagnostic X-ray modalities, operable standalone or with NOMEX Multimeter.
• NORMI 3D 3D imaging quality control phantom for diagnostic radiology QA.
• DIAMENTOR C-RS Patient dosimetry system for diagnostic radiology, measuring patient dose exposure during X-ray procedures.
• OCTAVIUS Detector 1500 2D detector array for IMRT and VMAT patient-specific QA and machine-specific quality control.
• OCTAVIUS Detector 1600 SRS High-resolution 2D detector array designed for SRS/SBRT small-field dosimetry and stereotactic QA.
• STARCHECK Detector array for daily and machine-specific QA of linear accelerators supporting IMRT and VMAT treatments.
• PinPoint 3D Ion Chamber Small-volume cylindrical ionization chamber for small-field dosimetry and high-resolution measurements in stereotactic radiotherapy.
• microDiamond Diamond detector for small-field and reference dosimetry in radiation therapy, offering near tissue-equivalent response.
• microSilicon Silicon-based detector array for high-resolution dosimetry in radiation therapy and small-field applications.
• Farmer Ionization Chamber Reference-class thimble ionization chamber for absolute dose measurements in radiation therapy following IAEA TRS-398 and AAPM TG-51 protocols.
• Roos Electron Chamber Plane-parallel ionization chamber designed for electron beam dosimetry and dose measurement at shallow depths.
• Bragg Peak Chamber Specialized ionization chamber for dose measurement in proton and particle therapy beam quality assurance.
• QUICKCHECK webline Web-based tool for daily QA checks and data management of radiation therapy equipment.
• Dosimetry School Global education initiative founded in 2014 providing seminars, workshops, and training programs in clinical dosimetry for medical physicists, covering reference dosimetry, relative dosimetry, small-field dosimetry, IMRT/VMAT QA, and LINAC commissioning.
• PTW Calibration Laboratory ISO 17025 accredited calibration laboratory performing over 12,000 calibrations per year for ionization chambers, electrometers, and dosimetry instruments, traceable to national metrology institutes.

Quantifiable outcome

• 12,000+ calibrations performed annually in PTW Calibration Lab
• +2 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• QRM (Quality Assurance in Radiation Medicine)coreStrategic or Co-development Partner · 14 April 2020PTW acquired a share in QRM, a phantom manufacturer. Starting January 2021, PTW became the sole and exclusive sales representative for QRM phantoms worldwide. The partnership combines expertise in quality assurance for radiation therapy and diagnostic radiology.
• South Asia Centre for Medical Physics and Cancer Research (SCMPCR)coreStrategic or Co-development PartnerPTW has been sponsoring SCMPCR for many years, supporting education and training in medical physics and radiation medicine in South Asia. Through partnerships with public hospitals in Bangladesh, SCMPCR runs cancer awareness and prevention campaigns using hospital infrastructure, supported by PTW.
• National Institute of Neurology and Neurosurgery of Mexico (INNN)minorOthersOfficial PTW reference site in Mexico, demonstrating PTW equipment usage in a leading neurological research institution.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Sun Nuclear (a Mirion Medical company): Sun Nuclear is the most direct competitor to PTW in patient QA, machine QA, and detector arrays for radiation therapy, with overlapping product families (daily QA, 4D phantoms, electrometers). It was acquired by Mirion Technologies in 2021, giving it similar global scale and a comparable position in radiation medicine QA.
• IBA Dosimetry (part of IBA): IBA Dosimetry is a dedicated division of Ion Beam Applications focused on detectors, electrometers, phantoms, and QA software for radiation therapy and medical imaging. It overlaps heavily with PTW's radiation therapy and diagnostic imaging portfolios and is one of the closest head-to-head competitors globally.
• Standard Imaging: Standard Imaging designs and manufactures QA instruments and phantoms used in radiation therapy, including ionization chambers, electrometers, and patient QA devices. It competes directly with PTW across reference dosimetry and IMRT/VMAT/SRS QA, with comparable end customers (medical physicists at radiation oncology centers).

Broad incumbents

• Mirion Technologies: Mirion is a broad incumbent in radiation detection, dosimetry, and nuclear measurement across medical, industrial, and defense markets. Following its acquisition of Sun Nuclear, it is one of the largest scaled competitors to PTW in medical dosimetry, with broader portfolio reach into radiation monitoring and metrology.
• Varian (Siemens Healthineers): Varian is the leading linear accelerator OEM and, post Siemens Healthineers acquisition, a vertically integrated radiotherapy platform. While primarily a treatment machine vendor, its Eclipse treatment planning, ARIA oncology IT, and QA offerings overlap with PTW's patient QA and commissioning workflows, making it both a customer (PTW detectors used with Varian linacs) and a potential competitive threat.
• Elekta: Elekta is a major linear accelerator and radiosurgery OEM (including Unity MR-Linac and Versa HD). Like Varian, it sells treatment machines alongside QA and treatment planning software, positioning it as a broad incumbent that competes with PTW in some commissioning and patient QA workflows while remaining a key ecosystem partner for VERIQA integration.
• Fluke Health Solutions (Fluke Biomedical / RaySafe): Fluke Health Solutions, including Fluke Biomedical and the RaySafe product line, offers X-ray QA, patient dose monitoring, and diagnostic imaging dosimetry products. It overlaps with PTW's NOMEX diagnostic imaging portfolio and is a relevant incumbent competitor in the diagnostic radiology QA segment.

Emerging players

• QRM (Quality Assurance in Radiation Medicine): QRM is a specialist manufacturer of QA phantoms for radiation therapy and diagnostic radiology. Since 2021 PTW is the exclusive worldwide sales representative for QRM phantoms, making QRM a closely allied niche player; it is included as a peer because independent of the commercial relationship it remains a relevant comparator in the phantom segment.
• LAP (Laser Applications): LAP manufactures laser-based patient positioning, surface-guided radiation therapy (SGRT), and QA systems used in radiotherapy. It is an emerging player that overlaps with PTW's SGRT/IGRT QA category and competes for QA budget in radiation oncology departments.
• Modus Medical Devices: Modus Medical is a Canadian specialist in QA phantoms and analysis software for radiation therapy and diagnostic imaging, including the QUASAR and IRA phantoms. It is an emerging niche player competing directly with PTW's RUBY, OCTAVIUS, and QRM-represented phantom families in patient-specific and machine QA workflows.

Market position

Strengths5 records

Weaknesses3 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/PTWdosimetry
• LinkedInlinkedin.com/company/ptw-
• Xx.com/ptwnorthamerica

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about PTW Freiburg