Top vendors for EEG / EMG, compared

Six vendors across EEG software, hardware, managed services, and consumables — mapped so you know which layer of the stack each one actually covers.

TL;DR

The EEG/EMG space isn't a single market — it's four. You have hardware manufacturers, software-only platforms, full-service outsourced programs, and consumable suppliers. Choosing the wrong category wastes budget before a single test is run.

Alliance Neurodiagnostics, LLC d/b/a Stratus is the broadest operator here, offering managed EEG services, proprietary software, and hardware under one program — relevant if you want one vendor running your EEG department rather than assembling pieces yourself. Ceribell, Inc. is the most tightly scoped: a point-of-care EEG device purpose-built for ICUs and emergency departments, with the only FDA-cleared AI for seizure detection in preterm neonates. Persyst Development LLC and LVIS Corporation both sell EEG analysis software but approach it differently — Persyst is deep in peer-validated seizure and spike detection for high-volume labs; LVIS leads with cloud-based 3D/4D brain network visualization. CADWELL INDUSTRIES, INC. is the widest hardware platform, covering EMG, nerve conduction, EEG, evoked potentials, intraoperative monitoring, and sleep diagnostics from a manufacturer founded in 1979. D.O. WEAVER AND COMPANY isn't a system vendor — they make the skin prep gels and conductive pastes that go on every patient before a single electrode is placed.

At a glance

Vendor	Type	Primary Setting	Key Product	Notable Credential
Stratus	Services + Software + Hardware	Ambulatory, ICU, EMU, clinical trials	StratusEEG platform	Multi-site decentralized clinical trial support
LVIS Corporation	Software (SaaS)	Multi-setting	NeuroMatch®	FDA 510(k) K250239; MFDS (Korea) cleared
Persyst Development LLC	Software	High-volume labs, ICU	Persyst 15 (P15)	Seizure detection algorithm peer-reviewed in clinical literature
Ceribell, Inc.	Hardware + AI Software	ICU, ED, NICU	CLARITY® EEG system	Only FDA-cleared neonatal/preterm seizure AI; 95% sensitivity, 97% specificity for status epilepticus
Cadwell Industries	Hardware	EMG/NCS/EEG/IONM/Sleep	Sierra, Arc, Cascade	Family-owned; founded 1979; ~270 U.S. employees
D.O. Weaver and Company	Consumables	All EEG/ECG/sleep settings	Nuprep, Ten20	ISO 13485 certified

Pricing is not publicly listed by any of these vendors. Contact each directly for a quote.

How they compare

Software: automated review vs. advanced visualization

Persyst Development LLC and LVIS Corporation are both EEG analysis software companies, but they're solving different problems. Persyst 15 focuses on clinical review workflow: automated seizure and spike detection, artifact reduction, and trending analytics built for high-volume epilepsy monitoring units and ICUs. The seizure detection algorithm is validated in peer-reviewed literature — that matters when medical staff need to defend protocol decisions in audits or adverse event reviews.

LVIS takes a visualization-forward approach. NeuroMatch® adds source localization and 3D/4D brain network mapping on top of standard EEG review and delivers it as a cloud SaaS rather than on-premise software. FDA 510(k) clearance (K250239) and Korean MFDS clearance suggest active regulatory investment. Note that Stratus also operates a proprietary software platform (StratusEEG), but it's bundled into a managed service rather than sold as a standalone license.

Hardware: broad neurodiagnostics vs. point-of-care

CADWELL INDUSTRIES, INC. is the only vendor here that covers EMG, nerve conduction studies (NCS), evoked potentials (EP), EEG, intraoperative neurophysiological monitoring (IONM), and sleep diagnostics under one manufacturer. For a neurodiagnostics lab running all of these, that consolidation matters for service contracts, parts availability, and staff training. Cadwell has manufactured in Kennewick, Washington since 1979 — longevity in a capital equipment category is a reasonable signal for ongoing parts support.

Ceribell, Inc. does the opposite: one device, one critical use case, executed at a high clinical bar. The CLARITY® system is designed for deployment by non-EEG-specialist staff in critical care settings — no electroencephalographer needs to be on site to initiate monitoring. Its 95% sensitivity and 97% specificity figures for status epilepticus, plus the FDA clearance specifically for preterm neonates, make it a credible option for EDs and NICUs that currently have zero EEG access.

Services and consumables: the two ends of the stack

If your facility wants to outsource EEG operations rather than build in-house capacity, Stratus is the only vendor in this list offering that model. Their scope runs from ambulatory at-home video EEG to continuous ICU monitoring, epilepsy monitoring unit programs, and decentralized multi-site clinical trial support — the last of which is uncommon and worth noting for academic medical centers or device sponsors running neurological trials.

At the other end of the supply chain, D.O. Weaver and Company supplies the electrode preparation products that determine signal quality before any software or hardware does its job. Nuprep Skin Prep Gel and Ten20 Conductive Paste are used across EEG, ECG, and sleep labs. Their ISO 13485 certification covers the quality management system — not just the individual products — which is relevant for facilities under Joint Commission or CAP review.

How to choose

The right vendor depends on which layer of the EEG stack you're procuring, not on brand preference.

• ICU or ED with no existing EEG infrastructure: Ceribell is built for rapid bedside seizure detection without a credentialed EEG technologist present — the only option here with FDA clearance for preterm neonates.
• Full neurodiagnostics lab covering EMG, NCS, EEG, and IONM: Cadwell Industries covers all of those in one product family, simplifying vendor relationships, service agreements, and staff training.
• Outsourcing your EEG program or running a multi-site clinical trial: Stratus is the only managed-service option in this group, with ambulatory, continuous ICU, and decentralized trial capabilities under one contract.
• Software purchase or consumable standardization: Put Persyst 15 and NeuroMatch® from LVIS side by side on deployment model (on-premise vs. cloud SaaS) and visualization requirements — and include D.O. Weaver in any EEG procurement spec for electrode prep consumables.