Trellis AI vs athenahealth
Side-by-side comparison of AI visibility scores, market position, and capabilities
SF YC Stanford AI Lab spinout healthcare automation at General Catalyst/Telesoft-backed; AI agents trained on millions of clinical data points automating prior authorization and document-to-EHR extraction for Fortune 500 providers competing with Cohere Health.
About
Trellis AI is a San Francisco-based healthcare automation platform — backed by Y Combinator with funding from General Catalyst, Telesoft Partners, and executives from Google and Salesforce — providing healthcare providers, pharmaceutical companies, and diagnostic labs with AI agents trained on millions of clinical data points that convert unstructured medical documents into clean structured EHR data, automating the pre-service administrative workflows of document intake, prior authorization processing, and insurance appeal generation. Founded in 2024 as a Stanford AI Lab spinout by Mac Klinkachorn and Jacky Lin, Trellis serves Fortune 500 healthcare customers with a 25-person team focused on eliminating the manual paperwork that delays patient access to care.
$1.7B annual revenue; 160K+ providers, 117M patients; 18.15% EHR market share; 6,713+ companies using 2025; acquired by Bain Capital & Hellman & Friedman Nov 2021 at $17B; AI interoperability 2025
About
athenahealth is a cloud-based electronic health records (EHR), medical billing, and practice management company founded in 1997 and headquartered in Watertown, Massachusetts. The company was built on the principle that healthcare administration should be managed as a service — with athenahealth absorbing the complexity of payer rule updates, regulatory compliance, and billing workflows so that physicians and clinical staff can focus entirely on patient care. Its cloud-native architecture, deployed before most EHR competitors moved to the cloud, remains a core technical differentiator.\n\nathenahealth's platform — athenaOne — integrates EHR, revenue cycle management, patient engagement, and care coordination in a single system used by over 160,000 providers across 117 million patient records. The company serves ambulatory practices ranging from solo physicians to large health systems and medical groups. Its continuously updated rules engine processes millions of payer transactions daily, enabling higher clean claim rates and faster reimbursement compared to on-premise EHR alternatives. athenahealth holds an 18.15% share of the US ambulatory EHR market.\n\nathenahealth is currently owned by a private equity consortium of Bain Capital and Hellman & Friedman, which acquired the company in 2019 for $5.7 billion. Annual revenue stands at approximately $1.7 billion. The company competes with Epic, eClinicalWorks, and Oracle Health in the ambulatory EHR market. Its managed-service model, shared payer network data, and cloud-native infrastructure continue to make it a compelling choice for ambulatory providers who prioritize revenue cycle performance and reduced administrative burden.
AI Visibility Head-to-Head
Key Details
Capabilities & Ecosystem
Capabilities
Integrations
Also Compare
Track AI Visibility in Real Time
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.