Overview

PTW is a family-owned German manufacturer of high-precision dosimetry instruments for measuring ionizing radiation, headquartered in Freiburg im Breisgau, Germany. Founded in 1922, it employs roughly 200-500 people, with estimated annual revenue of $50-100M. The company serves medical radiation therapy, healthcare, and metrology institutions. In September 2026, PTW reported commissioning its equipment at a new cancer center in Turkmenistan, which houses six linear accelerators and two brachytherapy units.

At a glance

What PTW makes

PTW holds ISO 13485 and ISO 14001 certifications and offers dosimetry hardware, quality assurance software, and calibration services.

Products and capabilities described on the company's own site include Emissions, LED (source: ptwdosimetry.com).

Certifications

PTW is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• ISO 13485 — ptwdosimetry.com

• ISO 14001 — ptwdosimetry.com

Latest developments

• 2026-09-05 — We are excited to share another milestone for proton therapy dosimetry in North America! | PTW (linkedin.com)

• 2026-09-02 — I am very pleased to announce that PTW equipment has been successfully commissioned at the new flagship cancer center in Turkmenistan, which is equipped with six linear accelerators and two brachytherapy units. … | Amir Ubaidullaev (linkedin.com)

• 2026-07-21 — Great job and contrats to the team! | PTW (linkedin.com)

• 2026-04-13 — PTW Radiotherapy Physics Water Phantom and SC Octavius: direct award to PTW-UK Ltd. [#0680a8] · Tenderline (tenderline.uk)

• 2025-10-28 — Press Release New Beamscan Product Family | PTW (ptwdosimetry.com)

Company details

PTW is privately held, has been operating since 1922, and its dosimetry products are used by healthcare and radiation experts in many countries. PTW was founded in 1922, has an estimated 200-500 employees, and is headquartered in Freiburg im Breisgau, Baden-Wuerttemberg. On the LightSource stability read it is rated "Established & active": 104 years in operation (founded 1922). Holds ISO 13485, ISO 14001 certification(s) per public sources.

Frequently asked questions

What does PTW make?

PTW is a family-owned German manufacturer of high-precision dosimetry instruments for measuring ionizing radiation, headquartered in Freiburg im Breisgau, Germany. Founded in 1922, it employs roughly 200-500 people, with estimated annual revenue of $50-100M. The company serves medical radiation therapy, healthcare, and metrology institutions. In September 2026, PTW reported commissioning its equipment at a new cancer center in Turkmenistan, which houses six linear accelerators and two brachytherapy units.

Where is PTW headquartered?

PTW is headquartered in Freiburg im Breisgau, Baden-Wuerttemberg (7 Loerracher Strasse, Freiburg im Breisgau, Baden-Wuerttemberg, 79115).

When was PTW founded?

PTW was founded in 1922.

How big is PTW?

PTW has an estimated 200-500 employees, with revenue in the $50-100M range (estimated).

What certifications does PTW hold?

PTW lists ISO 13485 · ISO 14001 on its website. Confirm the certified scope for the specific plant producing your part.

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Last verified Nov 2026. Is this your company? Request a correction.