What Polhemus does

Polhemus, operating legally as Alken Inc. dba Polhemus and headquartered in Colchester, Vermont, designs and manufactures precision six-degrees-of-freedom (6DOF) motion-tracking systems based on AC electromagnetic sensing. Founded in the late 1960s/early 1970s, the company sells hardware into medical and healthcare simulation, military and defense training, academic and industrial research, and industrial/commercial applications, with named integrations spanning laparoscopic and dental surgical training (SimSurgery, BE.MED.SKILLED, MedVision), rehabilitation (Khymeia, Bienetec), robotics (Shadow Robot), sports biomechanics (Bull 3D), and military simulation (VSS, Virtalis, MetaVR, the Vermont Air National Guard's F-16 training). Its installed base and integrator relationships make it a reference supplier to the simulation industry rather than a direct seller to end users.

The core technology stack is built around proprietary AC electromagnetic tracking, augmented by Fly True Technology (FTT), a compensation layer for metallic-distortion environments. The current product portfolio spans the legacy Fastrak (shipped for 30+ years), the mid-tier PATRIOT family including a wireless variant, the tetherless G4, the high-end VIPER flagship rated at 960Hz update rate with sub-1ms latency, the Liberty Latus wireless large-area system, the SCOUT head tracker for XR applications, the Micro Sensor 1.8 millimeter-form-factor probe, and the VisionTrak eye-tracking module. A recent VIPER XR-4 Kit is co-engineered with Varjo for mixed-reality headsets. The firm holds ISO 9001 certification and operates as a GMP contract manufacturer under FDA regulations, an unusual dual posture for a sub-fifty-person specialist that supports both medical and defense qualification pathways.

Revenue mechanics are B2B and channel-driven: direct sales to OEM integrators and authorized regional distributors (e.g., Hi-Tech Metrology in Australia) who embed Polhemus trackers into their own certified end-systems and training simulators. Pricing is per-system with sensor count and accessory configuration as the primary drivers, and the presence of integrators across medical, defense, and research implies a mix of per-unit hardware sales and multi-year OEM supply agreements rather than a transactional volume model. The company remains privately held with no disclosed funding cadence.

Name

Polhemus

Legal name

Alken Inc. dba Polhemus

Website

https://polhemus.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

11–50 employees

Short description

Polhemus is a Colchester, Vermont-based precision motion-tracking hardware vendor that designs and manufactures AC electromagnetic six-degrees-of-freedom sensor systems sold to medical-simulation, military-training, and research integrators worldwide.

Ownership category

akta.pro rank

Product category

Motion Tracking Systems

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Other Measuring and Controlling Device Manufacturing (334519), Electromedical and Electrotherapeutic Apparatus Manufacturing (334510)

SIC

Measuring & Controlling Devices, Nec (3829), Industrial Instruments For Measurement, Display, And Control (3823), Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electromedical & Electrotherapeutic Apparatus (3845)

akta.pro primary industry

Magnetic Sensors (Hall/Magnetoresistive/Compass) (HDAHALAC)

Keywords

• Electromagnetic motion tracking
• 6DOF position tracking
• Military simulation systems
• Medical training trackers
• Motion capture sensors

Headquarters

HQ city

Colchester

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Motion Tracking Hardware Systems: Polhemus generates revenue through the sale of complete motion tracking systems including the VIPER, PATRIOT, G4, SCOUT, Liberty Latus, and Fastrak platforms. Each system includes a source (transmitter), sensors, and system electronics unit (SEU).
2. Motion Tracking Sensors: Sale of sensors including Standard Sensors, Micro Sensors (1.8mm OD), and wireless markers compatible with various tracking platforms.
3. Sourcing Components: Sale of sources, system electronics units, cables, and accessories required to operate Polhemus tracking systems.
4. 3D Digitizing Solutions: Revenue from digitizing styluses and systems compatible with Fastrak and other platforms for 3D data capture applications.
5. VisionTrak Eye Tracking: Sale of VisionTrak eye tracking systems using electromagnetic technology for pupil tracking, eye movement, and point-of-regard data in healthcare, research, and military applications.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Polhemus designs, manufactures, and sells electromagnetic motion tracking systems and sensors that capture real-time 6 degrees of freedom (6DOF) position and orientation data without line-of-sight requirements. Its product portfolio includes flagship trackers (VIPER, PATRIOT, G4, SCOUT, Liberty Latus, Fastrak), embeddable sensors (Micro Sensor 1.8), and specialty solutions such as VisionTrak eye tracking and the VIPER XR-4 headset integration kit, sold primarily to medical, military, and research integrators.

Product overview

Polhemus offers a portfolio of electromagnetic motion tracking systems and sensors for research, medical, and military applications. The product lineup centers on six core tracker systems: VIPER (flagship high-speed system), PATRIOT (essential 2-channel), PATRIOT Wireless (wireless variant), G4 (tetherless), SCOUT (self-contained head tracker), and Liberty Latus (large-area wireless). Supporting these are Micro Sensor 1.8 embeddable sensors and the VIPER XR-4 Kit for headset integration. The company also provides VisionTrak eye tracking solutions and incorporates Fly True Technology (FTT) software for metallic distortion compensation. All products use proprietary AC electromagnetic technology for 6DOF tracking without line-of-sight requirements.

Differentiator

Problem solved

Functional benefit

Brands

• VIPER: High-speed, high-fidelity motion tracking system with update rates up to 960Hz and latency as low as 1 millisecond. Features FTT (Fly True Technology) for metallic distortion compensation.
• PATRIOT
• PATRIOT Wireless
• G4
• Liberty Latus
• Scout
• FASTRAK
• Micro Sensor 1.8
• VisionTrak
• FTT (Fly True Technology)
• Tip Offset

Products and services

• VIPER Motion Tracking System Flagship high-speed, high-fidelity electromagnetic motion tracking system delivering 6DOF position and orientation data at update rates up to 960Hz with latency as low as 1ms; tracks 1-16 sensors with up to 4 sources for expanded coverage. Used by military, medical, and research integrators needing premium performance.
• PATRIOT Motion Tracker Essential 2-channel electromagnetic tracking solution with 6DOF output at 60Hz update rate and 18.5ms latency; supports 1-2 sensors with no line-of-sight requirement. Available in standard, medical, and drive bay versions for training simulators and medical device integration.
• PATRIOT Wireless Totally wireless variant of the PATRIOT platform with up to 4 wireless markers providing full 6DOF tracking at 50Hz update rate and expandable coverage with additional receptors up to 24 linear feet.
• G4 Tetherless Motion Tracker Compact tetherless motion tracker with proprietary RF link, supporting up to 3 sensors per hub at 120Hz update rate and 3.5ms latency; over 10 hours of battery life for unrestricted movement in VR, rehabilitation, and training applications.
• SCOUT Head Tracker Self-contained head tracker with 240Hz update rate and 3.5ms latency; weighs 35 grams in flight configuration, meets U.S. military flight qualifications, and operates without a separate system electronics unit for rugged pilot and helmet tracking on live and simulated aircraft.
• Liberty Latus (Large Area Tracking Untethered System) Wireless large-area tracking system (Large Area Tracking Untethered System) with 188Hz update rate, 5ms latency, supporting up to 12 wireless markers and 16 receptors for room-sized VR, AR, and training applications.
• Fastrak Motion Tracker Legacy motion tracker for scientific research with 120Hz update rate and 4ms latency; supports up to 4 sensors and also functions as a 3D digitizer with a compatible digitizing stylus, in use for over 30 years.
• Micro Sensor 1.8 Millimeter-sized electromagnetic tracking sensor weighing less than 1 gram with 1.8mm outer diameter, providing 6DOF data at speeds up to 240Hz and fully embeddable into catheters, HMDs, gloves, and other compact form factors for OEM medical and research devices.
• VIPER XR-4 Kit Integration kit connecting the VIPER tracking system to Varjo XR-4 headsets, enabling high-fidelity head tracking for flight and vehicle simulation. Includes sensor mount, USB drive with plugin, and cable management items.
• VisionTrak Eye Tracking System Eye tracking system using proprietary AC electromagnetic tracking technology, available in head-mounted and desktop versions, collecting pupil size, eye movement, and point-of-regard data in real time for healthcare, research, and military applications.
• 3D Digitizing Stylus and Solutions 3D digitizing styluses and systems compatible with Polhemus tracking platforms, used to capture 3D object geometry and spatial data for animation, scientific research, and industrial applications.

Quantifiable outcome

• Sub-millimeter accuracy in tracking precision
• +3 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

13 partnerships are on record, tiered primary, flagship, core, secondary and legacy.

• Hi-Tech MetrologyprimaryChannel Partner/ Reseller/ DistributorAuthorized distributor for Australia located at 2 Carl Court, Hallam VIC 3803, providing local sales, support, and distribution of Polhemus products in the Australian market.
• VSS (Virtual Simulation Systems)flagshipStrategic or Co-development PartnerAustralian company that develops military simulation products including CATS (Complete Aircrew Training System), sniper simulators, and minigun trainers integrated with Polhemus G4 tracking. VSS is a key integration partner creating turnkey training solutions.
• SimSurgerycoreStrategic or Co-development PartnerNorwegian company headquartered in Norway with offices in Germany and US, developing SEP (SimSurgery Educational Platform) laparoscopic surgery simulators using Polhemus PATRIOT tracking. Partnership since at least 1999.
• Shadow RobotcoreStrategic or Co-development PartnerUK-based robotics company developing the Shadow Dexterous Hand using Polhemus VIPER system and Micro Sensors for teleoperation applications. Key R&D partner for robotics integration.
• MedVisioncoreStrategic or Co-development PartnerDeveloper of SonoVision ultrasound simulator using embedded Polhemus PATRIOT tracking for probe positioning in medical training applications.
• BE.MED.SKILLEDcoreStrategic or Co-development PartnerDeveloper of DENT.PRO dental training simulator using Polhemus VIPER tracking with Micro Sensors embedded in dental tools. Installed in dental universities worldwide including India, Mexico, Chile, and Kyrgyzstan.
• MetaVRsecondaryTechnology or IntegrationProvider of Virtual Reality Scene Generator (VRSG) software used in Vermont Air National Guard F-16 simulators alongside Polhemus SCOUT head trackers.
• Total ImmersionsecondaryStrategic or Co-development PartnerFrench augmented reality company using LIBERTY LATUS with their D'FUSION software for AR applications including automotive prototypes and broadcast media.
• VirtalissecondaryStrategic or Co-development PartnerUK-based company using LIBERTY LATUS in Reality Helicopter Voice Marshalling Trainer for Royal Air Force and portable trainer variants.
• MedSimlegacyStrategic or Co-development PartnerPioneer in ultrasound simulation training with UltraSim product using Polhemus PATRIOT tracking. Company has roots in defense avionics simulation.
• BienetecsecondaryStrategic or Co-development PartnerSpanish company developing BioTrak virtual reality rehabilitation system using Polhemus G4 for physical therapy applications at Union de Mutuas Rehab Unit in Valencia, Spain.
• Bull 3DsecondaryStrategic or Co-development PartnerUK-based company using Polhemus G4 for biomechanical golf analysis and sports performance tracking. Founded by former professional golfer turned biomechanist Mark Bull.
• VarjosecondaryTechnology or IntegrationFinnish XR headset manufacturer. Polhemus offers VIPER XR-4 Kit integration for Varjo XR-4 headsets enabling high-fidelity head tracking for flight and vehicle simulators.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Meta Reality Labs: Meta's XR division ships inside-out optical tracking in Quest headsets that, for consumer VR/AR, substitutes for some of the use cases Polhemus serves. Represents the broadest competitive threat to Polhemus' XR head-tracking attach opportunity.

Direct peers

• Vicon Motion Systems: UK-based developer of motion capture systems (primarily optical) serving life sciences, entertainment, and engineering. Closely comparable as a motion tracking hardware vendor targeting similar research, biomechanics, and clinical research customers.
• Xsens (Movella): Dutch inertial and magnetic motion tracking specialist whose MVN systems target animation, sports, and industrial use cases. Directly competes with Polhemus in inertial/EM hybrid tracking for research and industrial markets.
• Qualisys: Swedish provider of marker-based and markerless motion capture systems for biomechanics, sports science, and life sciences. Direct competitor for the same research and biomechanics buyers that Polhemus serves.
• Northern Digital Inc. (NDI): Canadian manufacturer of optical and electromagnetic measurement systems for image-guided surgery and medical research. Direct competitor in EM tracking for surgical navigation and medical simulation, a primary vertical for Polhemus.
• OptiTrack (NaturalPoint): U.S.-based maker of optical motion capture cameras and tracking software for VR, animation, and research. Competes for the same virtual reality, simulation, and biomechanics integrators as Polhemus.

Emerging players

• Atracsys: Swiss provider of optical and hybrid tracking solutions for surgical navigation and computer-assisted intervention. Overlaps with Polhemus in the medical tracking segment with a different optical-leaning technology stack.
• Haption: French maker of force-feedback devices and 6DOF tracking solutions for robotics, VR, and medical simulation. Comparable to Polhemus in serving haptic/VR teleoperation use cases, including with Shadow Robot-like robotics integrators.
• STT Systems (Movella): Spanish inertial motion capture and biomechanics vendor serving sports, clinical gait analysis, and rehabilitation. Comparable to Polhemus for sports biomechanics (Bull 3D) and rehabilitation (Khymeia) customer segments.
• PhaseSpace: U.S.-based motion capture company using active LED markers and impX trackers for animation, research, and simulation. Competes in adjacent technology category for similar VR, research, and academic customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/polhemus3d
• YouTubeyoutube.com/user/polhemus3d
• Facebookfacebook.com/polhemus3d

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 Polhemus