What Persyst Development Corporation does

Persyst Development Corporation (operating as Persyst Development LLC) is a privately held medical-device software company founded in 1987 and headquartered in Solana Beach, California. The company builds quantitative EEG (qEEG) review and analysis software — led by its flagship product Persyst 15 — used by neurologists, epileptologists, and neurocritical care teams to interpret electroencephalography recordings. The platform provides AI-assisted seizure detection, spike detection, artifact reduction, intracranial EEG analysis, electrical source imaging (ESI), and a comprehensive set of quantitative trending tools, with a universal reader supporting nearly 70 EEG data formats. Persyst Mobile is the first FDA-cleared EEG monitoring and review application for iOS, Android, and Web.

Persyst's technology is built on digital signal processing, neural networks, and deep learning algorithms, with peer-reviewed validation showing seizure and spike detection performance statistically non-inferior to expert human reviewers. The company monetizes through tiered software licenses (Continuous Monitoring, Routine & Ambulatory, Clinical Review, Advanced Review, Multi-Patient Monitor, Research) sold both directly and through OEM channels, plus an annual/multi-year Persyst Prime support program (20% of list price) that bundles updates, mobile access, and clinical support. Distribution is dominated by OEM partnerships: Persyst is embedded in every major EEG manufacturer's acquisition system (Natus, Nihon Kohden, Cadwell, Compumedics, Micromed, Neurovirtual), making it the de facto standard of care in 97 of the top 100 US neurology hospitals and in every US hospital with an Epilepsy or EEG Clinical Neurophysiology Fellowship.

The company operates without external venture funding, holds five US patents, maintains ISO 13485:2016 certification, and is led by CEO Nicolas Nierenberg (appointed January 2011) and founder/Chief Scientist Scott B. Wilson. With 11–50 employees, Persyst is a small but commercially entrenched specialist whose growth lever is new clinical modules and mobile/SaaS expansion layered on top of an already-ubiquitous OEM-embedded base.

Name

Persyst Development Corporation

Legal name

Persyst Development LLC

Website

https://persyst.com

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

11–50 employees

Short description

Persyst Development Corporation builds AI-assisted EEG review and analysis software (Persyst 15) used by hospital neurology, epilepsy monitoring units, and ICUs. Its software is embedded in every major EEG manufacturer's system and serves 97 of the top 100 US neurology hospitals.

Ownership category

akta.pro rank

Headquarters

HQ city

San Diego

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software Licenses (Persyst 15): Persyst 15 EEG Review and Analysis Software sold with different licensing tiers (Continuous Monitoring, Routine & Ambulatory, Clinical Review, Advanced Review, Research). Licenses are sold directly and through OEM manufacturer channels. Perpetual purchase with annual software assurance or subscription via Persyst Prime program.
2. Persyst Prime Priority Support Program: Annual or multi-year support program providing exclusive access to clinical tools (sEEG Imaging, Persyst Mobile), all major and minor software updates, technical support, training, and configuration services. Annual cost at 20% of current list price with multi-year discounts up to 15%.
3. Professional Services (Training & Support): Remote training sessions, clinical application support, configuration and troubleshooting, and installation services. Scheduled via the Persyst support portal.
4. Additional License Volume Discounts: Volume discounts of up to 30% on additional licenses for institutions expanding deployment.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

Persyst develops and sells Persyst 15, a flagship EEG Review and Analysis Software platform that delivers Computer Assisted Review of EEG (C.A.R.E) for hospitals and neurology clinics. The software provides automated seizure detection, spike detection, real-time artifact reduction, quantitative EEG trending, EEG Electrical Source Imaging, intracranial EEG analysis, multi-patient monitoring, and an FDA-cleared mobile review application, and is licensed through tiered subscriptions sold directly and embedded in OEM EEG systems from every major manufacturer.

Product overview

Persyst Development Corporation offers Persyst 15, a comprehensive EEG review and analysis software platform marketed as Computer Assisted Review of EEG (C.A.R.E). The product portfolio includes core software (Persyst 15), specialized licensing tiers (Continuous Monitoring, Clinical Review, Routine & Ambulatory Review, Advanced Review, Multi-Patient Monitor), specialized modules (Persyst ESI for electrical source imaging, Persyst iEEG for intracranial electrode analysis, Persyst Mobile for FDA-cleared mobile access, Persyst Mobile Cloud for research), support services (Persyst Prime), and feature components (seizure detection, spike detection, artifact reduction, trending, spike review). Persyst is integrated with all major EEG manufacturers including Natus, Nihon Kohden, Cadwell, Compumedics, and Micromed, and serves as a universal EEG reader supporting nearly 70 different data formats.

Differentiator

Problem solved

Functional benefit

Brands

• Persyst 15: EEG Review and Analysis Software - the company's flagship product providing C.A.R.E (Computer Assisted Review of EEG) with seizure detection, spike detection, trending, artifact reduction, and patient monitoring capabilities
• Persyst Mobile
• Persyst Mobile Cloud
• Persyst Prime
• Persyst Grand Rounds
• Persyst ESI

Products and services

• Persyst 15 Flagship EEG Review and Analysis Software providing Computer Assisted Review of EEG (C.A.R.E) with continuous monitoring, advanced review, multi-patient monitoring, seizure and spike detection, artifact reduction, quantitative EEG trending, and intracranial EEG analysis. Sold to hospitals and integrated into OEM EEG systems.
• Persyst Continuous Monitoring

Quantifiable outcome

• P14 seizure detector achieved pairwise sensitivity of 78.2% and false-positive rate of 0.9 per day, statistically non-inferior to expert human readers (77% sensitivity, 0.8 FP/day). At consensus-of-three seizure events, P14 achieved 90% sensitivity with ~1 FP/day.
• +4 more outcomes

Named customers3 records

Segments6 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

AI capability7 records

Feature10 records

Partnerships

Seven partnerships are on record, tiered core and supporting.

• Nihon Kohden America, Inc.coreOEM/ Whitelabel/ Licensing PartnerPersyst is fully integrated with Nihon Kohden's EEG-1200 Diagnostic and Monitoring platform. On integrated systems, Persyst starts trending and detection automatically when acquisition begins. All results are time-synchronized with the manufacturer's EEG display.
• Natus NeurologycoreOEM/ Whitelabel/ Licensing PartnerPersyst is fully integrated with Natus Neuroworks software and the NicOne system. Persyst Continuous Monitoring is integrated within the manufacturer's EEG acquisition system and display.
• MicromedcoreOEM/ Whitelabel/ Licensing PartnerPersyst is fully integrated with Micromed's SystemPlus Evolution and BrainQuick software. Delivering solutions in neurophysiology worldwide, Micromed partners with hospitals, sleep labs and research centers.
• Compumedics LimitedcoreOEM/ Whitelabel/ Licensing PartnerPersyst is integrated with Compumedics Profusion EEG software. Compumedics provides innovative solutions for clinical EEG, long-term monitoring, Neuro-ICU monitoring and ambulatory EEG.
• Cadwell Laboratories, Inc.coreOEM/ Whitelabel/ Licensing PartnerPersyst is fully integrated with Cadwell's Arc and Easy 3 platforms. Cadwell sets standards in clinical EMG/NCV/EP instrumentation, Intraoperative Neuromonitoring, Clinical EEG, and Continuous EEG/ICU Monitoring.
• NeurovirtualcoreOEM/ Whitelabel/ Licensing PartnerPersyst is fully integrated with Neurovirtual's BWAnalysis EEG/ICU/LTM Software. Neurovirtual operates globally in manufacturing, marketing and distribution of diagnostics solutions for Neurology and Sleep Medicine.
• Moberg ICU Solutions (Micromed Group)supportingOEM/ Whitelabel/ Licensing PartnerPersyst is integrated as a standalone application with Moberg ICU Solutions, which provides advanced monitoring and informatics technology for urgent, acute and surgical neurological patients. Moberg is now part of the Micromed Group.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Natus Medical: Natus Medical is a leading global manufacturer of neurodiagnostic equipment, including its own Neuroworks/NicOne EEG software. While Natus distributes Persyst as an OEM partner, it is also a direct competitor for EEG analysis software in many accounts.
• Nihon Kohden: Nihon Kohden is a major Japanese medical device manufacturer with a global EEG hardware and software business. Its EEG-1200 platform embeds Persyst, but Nihon Kohden also offers its own EEG analysis software for direct competition in hospital accounts.
• Compumedics: Compumedics is an Australian medical device company providing clinical EEG, long-term monitoring, and Neuro-ICU monitoring solutions. Its Profusion EEG software competes directly with Persyst while also serving as an OEM distribution partner.
• Cadwell: Cadwell is a US-based neurodiagnostic equipment manufacturer with Arc and Easy 3 EEG platforms. Cadwell's native EEG software competes with Persyst while also distributing it through OEM partnership.
• Micromed: Micromed (now incorporating Moberg ICU Solutions) is a European EEG manufacturer with SystemPlus Evolution and BrainQuick software. It distributes Persyst as an OEM partner while also offering competing native EEG analysis capabilities.

Emerging players

• Ceribell: Ceribell is an AI-powered point-of-care EEG company focused on rapid seizure detection in non-EMU settings (ED, ICU, ambulance). It competes with Persyst for hospital EEG AI budgets but targets a different clinical workflow and use case.
• Beacon Biosignals: Beacon Biosignals is an AI-EEG platform focused on clinical trials, biomarker discovery, and CNS drug development. It applies deep learning to EEG data — overlapping with Persyst's AI/ML capabilities but in the research and clinical trial market rather than routine clinical practice.
• Wave Neuroscience: Wave Neuroscience (formerly BrainScope) develops AI-driven EEG-based assessment tools for brain injury and neurological conditions. It is an emerging competitor in the EEG AI space with overlapping algorithmic capabilities.
• Cumulus Neuroscience: Cumulus Neuroscience is a digital health company developing EEG-based biomarker platforms for clinical trials in CNS disorders. It competes in the EEG AI market with a research and clinical trials focus, similar to Persyst Mobile Cloud.

Broad incumbents

• Brainlab: Brainlab is a large medical technology company specializing in software-driven surgery and radiotherapy, including neurosurgical planning. Its surgical planning capabilities overlap with Persyst's EEG Electrical Source Imaging (ESI) and iEEG analysis tools.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xtwitter.com/PersystEEG
• Facebookfacebook.com/Persyst-Development-Corporation-456455171128992
• LinkedInlinkedin.com/company/persyst-development-corporation

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

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 Persyst Development Corporation