Electrical Geodesics, Inc. (Magstim EGI)

Eugene, Oregon, United StatesFounded 199251–100 employeesegi.com

Electrical Geodesics is a medical technology company.

Visit egi.com ↗

Founded: 1992
Employees: 51–100

reccy insights

Written by reccy's AI from company sites, press and funding records · updated Oct 2026

Recent highlights

Electrical Geodesics’ most significant ownership milestone was announced on Jul 2, 2020, when The Magstim Company acquired the business and its product portfolio. The transaction followed Philips’ ownership of the high-density EEG technology and positioned EGI’s products within Magstim’s broader neuromodulation and neurodiagnostics portfolio. EGI’s core offering remains centered on dense-array EEG, including the Geodesic EEG System 400, HydroCel sensor nets, Net Station software, and tools for electrical source imaging. Public attention in 2023 and 2024 focused primarily on the wider EEG market rather than on company-specific launches or partnerships. Articles dated Jan 11, 2024, Jan 15, 2024, and Jan 17, 2024 referenced EEG analysis software, electrode caps, and amplifiers, respectively, placing EGI among established participants in a growing brain-monitoring segment.

Market position

Electrical Geodesics occupies a specialized position in research-grade neurodiagnostics, differentiated by dense-array EEG systems that combine high spatial resolution with millisecond-scale temporal data. Its portfolio spans hardware, electrode nets, acquisition software, source imaging, and compatibility with fMRI and MEG, giving researchers an integrated workflow rather than a standalone amplifier. The company competes in a broader field that includes Natus Medical, Nihon Kohden, and Cadwell in EEG hardware and clinical neurodiagnostics. In high-density research EEG and electrode systems, ANT Neuro, Mitsar Medical, Inomed, and Neuroelectrics are relevant comparison points. EGI’s differentiation is its 32- to 256-sensor Geodesic Sensor Net range, the Geodesic EEG System 400, and software and modeling tools designed around dense-array data. Its integration into The Magstim Company since 2020 may provide strategic adjacency to non-invasive neuromodulation, particularly through the GTEN 100 platform and EEG-guided stimulation capabilities.

Growth & opportunities

Electrical Geodesics’ trajectory reflects a transition from an independent medical technology company founded in 1992 to an acquired specialist operating under The Magstim Company. Its product evolution has extended beyond EEG acquisition into sensor technology, photogrammetry, electrical source imaging, realistic head modeling, and simultaneous EEG-neuromodulation workflows. The Jul 2, 2020 acquisition was the clearest inflection point, following Philips’ ownership of the technology and Magstim’s purchase of the EGI product portfolio. This changed the company’s growth path from standalone commercialization toward portfolio integration within a larger neurotechnology group. Market references in 2023 and 2024 indicate continued relevance of EEG amplifiers, electrode caps, and analysis software, but they do not establish company-specific growth. Overall, EGI appears to have a mature, technically broad product platform with limited publicly visible evidence of post-acquisition expansion.

Written by reccy's AI from company sites, press and funding records · updated Oct 2026

What makes Electrical Geodesics, Inc. (Magstim EGI) distinct

reccy insights

What makes Electrical Geodesics, Inc. (Magstim EGI) distinct

01Dense-array EEG systems designed to capture high-resolution brain activity data at millisecond-scale temporal resolution.
02Integrated portfolio spanning EEG hardware, electrode sensor nets, acquisition software, source imaging, and head modeling.
03Geodesic Sensor Nets support 32-, 64-, 128-, and 256-sensor configurations with quick, non-invasive application.
04Systems support simultaneous EEG use with fMRI and MEG, expanding applicability in multimodal neuroscience research.
05EEG-guided neuromodulation capabilities connect brain monitoring with non-invasive stimulation workflows.

Technology & products6

Technology & products

Geodesic EEG System 400
A high-density EEG system offering comprehensive spatial resolution for research applications, featuring on-board processing, advanced electronics, and remote upgrade capabilities.
Geodesic Sensor Nets
EEG sensor nets that provide quick and painless application of electrodes, available in configurations of 32, 64, 128, or 256 sensors.
GeoSource 3 Electrical Source Imaging
A platform for electrical source imaging using high-density EEG data and realistic head models for advanced research applications.
Net Station 5 Software
Software suite for EEG data acquisition, review, and analysis, compatible with various data formats and third-party software.
GTEN 100 HD-tDCS/tACS/tPCS with EEG
A system for non-invasive neuromodulation with simultaneous EEG, offering flexibility with 256 electrodes for different neuromodulation techniques.
fMRI/MEG-compatible Geodesic EEG Systems
EEG systems designed for simultaneous use with fMRI and MEG, providing high spatial resolution and artifact cleaning capabilities.

Show all 6 products

+ 3 more: Net Station 5 Software, GTEN 100 HD-tDCS/tACS/tPCS with EEG, fMRI/MEG-compatible Geodesic EEG Systems

About Electrical Geodesics, Inc. (Magstim EGI)

Products: Geodesic EEG System 400, Geodesic Sensor Nets, GeoSource 3 Electrical Source Imaging, Net Station 5 Software, GTEN 100 HD-tDCS/tACS/tPCS with EEG, fMRI/MEG-compatible Geodesic EEG Systems
Leadership: Don Tucker, Chairman, CEO & Co-Founder
Focus areas: NeuroTechnology, medical device, health care, electroencephalography, brain monitoring
Headquarters: Eugene, Oregon, United States
Founded: 1992
Employees: 51–100