Vision RT
British medical technology company that invented and leads the Surface Guided Radiation Therapy (SGRT) market.
Last updated September 26, 2026
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Overview
Vision RT is a United Kingdom-based medical technology company that invented and is the market leader in Surface Guided Radiation Therapy (SGRT). Founded in 2001, the company develops 3D surface imaging systems that track patients throughout the radiotherapy workflow — from simulation and planning through treatment and dose delivery — with the goal of improving the safety, effectiveness and efficiency of cancer radiation therapy. Its flagship AlignRT system is used for motion management in the treatment room, while SimRT supports 4D and breath-hold CT simulation and MapRT maps safe beam angles for treatment planning. DoseRT extends the platform into real-time dose visualization. Headquartered in London, Vision RT employs nearly 400 staff worldwide and maintains offices in the United States, Warsaw, Delhi, Dubai and Melbourne. Its systems are in active clinical use around the world, with the company reporting more than 3,500 installations globally and use in 29 of the top 30 US hospitals for cancer as ranked by U.S. News & World Report. The company states that its technology has been cited in over 300 peer-reviewed journal articles and that AlignRT can help reduce treatment times by an average of 22% per fraction. Vision RT positions itself as the pioneer and leader of SGRT, describing its video-based tracking technology as a non-invasive, non-ionizing approach that is becoming established as the standard of care in surface-guided radiotherapy. The company collaborates with leading cancer centers and equipment vendors, sponsors The SGRT Community and other educational activities, and states its mission as making radiation therapy more effective for cancer patients while enabling patient comfort. Its stated values are caring, honest, innovative, collaborative and entrepreneurial.
History
Vision RT was founded in 2001 with a mission to develop pioneering technology for Surface Guided Radiation Therapy (SGRT), aiming to enable patient comfort and enhance treatment efficacy and efficiency. The company's core innovation is video-based 3D surface imaging that tracks patient position without contact, markers or ionizing radiation, allowing radiotherapy teams to monitor motion throughout simulation, planning, treatment and dose delivery. As the company grew, it collaborated with leading cancer centers and equipment vendors, and its technology became established as a standard of care in surface-guided radiotherapy. Vision RT expanded internationally, establishing offices in the United States, Warsaw, Delhi, Dubai and Melbourne while remaining headquartered in London, United Kingdom. The company reports nearly 400 employees worldwide. Vision RT's product line evolved from the market-leading AlignRT treatment-room system into a broader SGRT platform spanning the full workflow: SimRT for 4D and breath-hold CT simulation, MapRT for treatment planning clearance mapping, and DoseRT for real-time dose visualization. The company also offers modules and accessories such as AlignRT InBore, Auto ROI, Beam Guide, Head Adjusters, OIS Reports, Patient ID, Postural Video, Real Time Coach, Respiratory and Stereotactic modules. By the time of the supplied evidence, Vision RT reported more than 3,500 systems in active clinical use worldwide, with installations in 29 of the top 30 US hospitals for cancer as ranked by U.S. News & World Report, and more than 300 clinical results published in peer-reviewed journal articles. The company states that AlignRT can help reduce treatment times by an average of 22% per fraction. Through sponsoring The SGRT Community and other educational activities, Vision RT continues to promote the adoption of SGRT with the stated aim of providing its solutions to every cancer clinic around the world.
- 2001
Vision RT founded with a mission to develop Surface Guided Radiation Therapy (SGRT) technology.
AlignRT established as the market-leading SGRT system for motion management in the treatment room.
SimRT introduced as a single-camera, contactless solution for 4D and breath-hold CT simulation.
MapRT launched as a dual-camera solution mapping safe beam angles for treatment planning.
DoseRT introduced for real-time dose visualization using Cherenkov-enabled imaging.
Company reports more than 3,000 installations in active clinical use globally.
Company reports 3,500+ systems in active clinical use worldwide and nearly 400 staff.
Products and positioning
Inventor and market leader in Surface Guided Radiation Therapy (SGRT), providing non-invasive, non-ionizing 3D surface imaging to improve the safety, effectiveness and efficiency of the entire radiotherapy workflow.
AlignRT
Market-leading SGRT system for motion management in the treatment room.
SimRT
Single-camera, contactless solution to monitor and record patient position during 4D and breath-hold CT.
MapRT
Dual-camera solution that maps all safe beam angles for improved treatment planning.
DoseRT
Real-time dose visualization using Cherenkov-enabled imaging.
AlignRT InBore
SGRT module for in-bore use.
Auto ROI Module
Automated region-of-interest module for AlignRT.
Beam Guide
Beam guidance accessory for SGRT workflows.
Head Adjusters
Head positioning accessories.
OIS Reports Module
Oncology information system reporting module.
Patient ID Module
Patient identification module for SGRT.
Postural Video
Postural video monitoring feature.
Real Time Coach
Real-time patient coaching feature.
Respiratory Module
Respiratory gating module for SGRT.
Stereotactic Module
Stereotactic radiotherapy module.
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