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Robot maker · registered

Accuray

Corporate marketmedicalCurated record
accuray.com

CyberKnife mounts a compact linear accelerator on a six-axis robotic manipulator that delivers radiation from potentially thousands of unique angles with sub-millimeter accuracy. The Synchrony system provides AI-driven real-time motion tracking, automatically adapting beam delivery to patient or tumor movement (e.g., respiration) without interrupting treatment. Synchrony adaptive delivery has also been extended to the Radixact helical therapy platform (SynC). Current-generation CyberKnife S7 launched in June 2020 and remains the company's flagship robotic system.

HeadquartersMadison, US
Founded1990
Corporate funding$187M
TeamNot listed
Deployments8
Open roles0
01

Company overview

Identity and operating footprint

Company typeRobot maker
Market segmentCorporate
StagePublic (NASDAQ: ARAY)
FoundersJohn R. Adler (Founder), Suzanne Winter (CEO)
Regions servednorth-america, europe, asia-pacific
Countries deployedNot listed
Service footprintNot listed
Last reviewed2026-07-21
MX

Robot models

Specifications remain vendor-claimed

Machinemedical

CyberKnife S7

  • Sub-millimeter accuracy

    Delivers stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT) with sub-millimetric precision via a robotic arm delivering radiation from potentially thousands of unique angles.

    Claim source
  • Treatments in as little as 15 minutes

    Company-claimed treatment delivery time for SRS/SBRT sessions on the S7 system.

    Claim source
  • Synchrony AI-driven real-time motion tracking

    Real-time motion tracking and synchronization that automatically adapts treatment delivery for patient or tumor movement during the session.

    Claim source
Machinemedical

Stellar

  • No specifications on file.
DP

Deployment log

Announced and cited only

AnnouncedCustomerSiteCountryCountEvidence
2026-02-06UC Davis Comprehensive Cancer Centerhospital cancer centerUS1Announcement
2025-10-13Unio Specialty CareSan Diego Radiation Oncology center, CaliforniaUSNot disclosedAnnouncement
2025-10-085D Clinics (with Icon Group)radiation oncology clinic, Melbourne, AustraliaAUNot disclosedAnnouncement
2025-05-05CyberKnife Center Salzburgradiosurgery centerATNot disclosedAnnouncement
2024-09-10Gifu Prefectural General Medical CenterhospitalJPNot disclosedAnnouncement
2024-08-13Halifax Health - Charles L. and Miki N. Grant Cancer Center for Hopehospital cancer centerUSNot disclosedAnnouncement
2020-06-17Geisinger Wyoming Valley Medical Centerfirst center worldwide to treat patients with CyberKnife S7USNot disclosedAnnouncement
2018-07-25Addenbrooke's Hospital (Cambridge University Hospitals NHS)hospitalGBNot disclosedAnnouncement
CA

Funding history

Publicly announced rounds

TL

Company timeline

Milestones and announcements

2025-01-13China NMPA approval of Radixact SynC and CyberKnife S7 systemsPR Newswire
2023-07-31Relocated global headquarters from Sunnyvale, CA to Madison, WIWisconsin Health News
2007-02-08Completed IPO on Nasdaq (ARAY), raising $187.2M gross proceedsAccuray Incorporated
SC

Source ledger

11 unique public sources

01
Accuray Incorporated Announces Underwriters' Exercise of Over-Allotment Option and Completion of Initial Public OfferingAccuray Incorporated · retrieved 2026-07-21
02
Accuray Launches New CyberKnife S7 SystemPR Newswire
03
Cancer center leads the region with latest advances in radiation treatmentUC Davis Health · retrieved 2026-07-21
04
Unio Specialty Care Launches State-of-the-Art CyberKnife S7 System at San Diego Radiation Oncology CenterUnio Specialty Care · retrieved 2026-07-21
05
Accuray Announces Milestone for Cancer Patients in Melbourne, Australia with First SBRT Treatments Using the CyberKnife SystemPR Newswire · retrieved 2026-07-21
06
Accuray Announces First SRS/SBRT Patient Treatments in Austria With the CyberKnife SystemPR Newswire · retrieved 2026-07-21
07
Gifu Prefectural General Medical Center Achieves Milestone with Treatment of the First Cancer Patients in Japan Using the Accuray Radixact System and VitalHold SolutionPR Newswire · retrieved 2026-07-21
08
Halifax Health in Florida is First in the U.S. to Treat Patients with Cancer Using the Accuray Radixact Radiation Delivery System and VitalHold TechnologyPR Newswire · retrieved 2026-07-21
09
Addenbrooke's Hospital is First in the UK to Treat Cancer Patients with Accuray Radixact SystemPR Newswire · retrieved 2026-07-21
10
Accuray opens training facility after moving headquarters to MadisonWisconsin Health News
11
Accuray Announces China National Medical Products Administration Approval of the Radixact SynC and CyberKnife S7 SystemsPR Newswire