Side-by-side comparison of AI visibility scores, market position, and capabilities
UnitedHealth Group (NYSE: UNH) health services at $226B revenue combining Optum Health clinics, Optum Rx PBM for 65M+, and Change Healthcare analytics; largest US health services company competing with CVS/Caremark.
Optum is the health services subsidiary of UnitedHealth Group (NYSE: UNH) — one of the world's largest companies with $400 billion in annual revenue — operating Optum Health (care delivery: primary care clinics, urgent care, surgical centers), Optum Rx (pharmacy benefit management: managing drug benefits for 65+ million people), and Optum Insight (health data analytics, technology, and consulting for health plans, providers, and government). With $226 billion in annual revenue in its own right (making Optum larger than most standalone health companies), Optum generates approximately 50% of UnitedHealth Group's total revenue and is the largest health services company in the world.
Ceribell (Nasdaq: CBLL) makes the only FDA-cleared AI point-of-care EEG for seizure detection in all patient ages; reported $89.1M revenue in 2025 (+36% YoY) with 2026 guidance of $111–$115M.
Ceribell is a commercial-stage medical technology company that has reimagined the electroencephalogram (EEG) for the acute care setting. Its flagship product is a rapid-application, disposable EEG system with an AI algorithm called Clarity that detects electrographic seizures in real time. The platform is FDA-cleared for use across all patient ages — from pre-term neonates through adults — making it the only point-of-care EEG with that breadth of clearance. In December 2025, Ceribell received additional FDA 510(k) clearance for its AI-powered delirium monitoring solution, the first and only FDA-cleared delirium screening and monitoring device.
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