Arbiter

Cover Block

Name	Arbiter
Tagline	AI care orchestration platform unifying patient data for payers/providers
Headquarters	New York City, USA
Founded	2025
Stage	Seed
Business Model	B2B
Industry	Healthtech
Technology	AI / Machine Learning
Geography	North America
Growth Profile	Venture Scale
Founding Team	Co-Founders (2)
Funding Label	$50M+
Total Disclosed	$52,000,000

Links

• Website: https://www.arbiter.ai/
• LinkedIn: https://www.linkedin.com/in/michelle-carnahan/
• AshbyHQ Jobs: https://jobs.ashbyhq.com/arbiter-ai

Executive Summary

Arbiter is an early-stage healthtech startup that has secured a $52 million seed round at a $400 million valuation to build an AI platform for unifying fragmented patient data and automating care workflows [Business Insider, Nov 2025] [PR Newswire, Nov 2025]. The company was founded in 2025 by Michelle Carnahan, a former executive at Eli Lilly, Cigna, UnitedHealth, and VillageMD, who has assembled a team with deep payer, provider, and big tech backgrounds [HIT Consultant, Nov 2025]. Its core product is a care orchestration platform built on a proprietary "Record-Action-Alignment" model, which integrates clinical, financial, and policy data to automate tasks like referrals and site-of-care optimization, starting with a specific application launched in partnership with a national payer [PR Newswire, Nov 2025].

Arbiter's differentiation rests on the acquisition of SecondWave Delivery Systems' data layer, which provided an accelerated path to a unified patient record and an initial customer base [Business Insider, Nov 2025]. The business model is B2B, targeting both health plans and provider networks. The funding, led by family offices TriEdge Investments and MFO Ventures alongside WindRose Health Investors, suggests a capital base comfortable with the regulatory and sales cycles inherent in healthcare [Business Insider, Nov 2025].

Data Accuracy: YELLOW -- Key metrics (valuation, clinician count) are reported by a single major outlet; company press release corroborates funding and product claims.

Taxonomy Snapshot

Axis	Classification
Stage	Seed
Business Model	B2B
Industry / Vertical	Healthtech
Technology Type	AI / Machine Learning
Geography	North America
Growth Profile	Venture Scale
Founding Team	Co-Founders (2)
Funding	$50M+ (total disclosed ~$52,000,000)

How the Company Got Here

Arbiter is a newly formed entity, incorporated roughly six months before its public debut in November 2025 [Business Insider, Nov 2025]. The company emerged from stealth with a $52 million seed round and a stated mission to build an AI system for unifying healthcare data and workflows [PR Newswire, Nov 2025]. Its headquarters are listed in New York City [PR Newswire, Nov 2025].

A significant early milestone was the acquisition of SecondWave Delivery Systems, a data platform focused on risk adjustment and patient data unification. This transaction provided the foundational data layer for Arbiter's platform and accelerated its initial deployment [Business Insider, Nov 2025]. The company's first commercial application, a site-of-care optimization tool, launched concurrently with its funding announcement in partnership with a leading national payer and major provider networks [PR Newswire, Nov 2025][HIT Consultant, Nov 2025].

Data Accuracy: YELLOW -- Key founding and operational details are reported by multiple business publications, but the company's own website and official corporate filings were not reviewed as primary sources.

Product and Technology

Arbiter's platform is positioned as an AI-powered operating system for healthcare, designed to address the industry's foundational problem of data fragmentation. The company's public materials describe a three-part "Record-Action-Alignment" model [PR Newswire, Nov 2025]. This model unifies clinical, financial, and policy data into a single longitudinal patient record, then uses this data to automate administrative workflows, such as generating prior authorizations, scheduling appointments, and managing patient outreach [HIT Consultant, Nov 2025].

The company's technical foundation relies on data integration capabilities accelerated through the acquisition of SecondWave Delivery Systems in 2025 [Business Insider, Nov 2025]. Current job postings indicate a focus on building out this infrastructure, with roles for a Data Engineering Lead and a Senior Engineer specializing in EMR integrations [AshbyHQ, 2026]. The platform is reportedly live and being used by over 1,000 clinicians and several health plans [Business Insider, Nov 2025].

Data Accuracy: YELLOW -- Product claims are sourced from company press releases and secondary reporting; technical stack is inferred from job postings.

Where the Demand Sits

Quantifying the total addressable market for a platform that aims to unify care workflows is challenging, as it spans multiple software categories. The broader healthcare IT market was valued at $394.6 billion globally in 2023, with a projected compound annual growth rate of 19.8% from 2024 to 2030 [Grand View Research, 2024]. The U.S. market for healthcare data integration tools was estimated at $3.7 billion in 2023 by MarketsandMarkets, growing at 12.5% annually [MarketsandMarkets, 2024].

Demand is driven by persistent industry pain points. Administrative waste accounts for 15-30% of healthcare spending, creating a financial incentive to automate manual processes like prior authorizations [Health Affairs, 2023]. For providers, clinician burnout and staffing shortages increase the urgency for tools that reduce administrative burden. The maturation of large language models is enabling the automation of complex, context-sensitive tasks that were previously out of reach [HIT Consultant, Nov 2025].

Metric	Value
Healthcare IT (Global, 2023)	$394.6B
Healthcare Data Integration (US, 2023)	$3.7B

Data Accuracy: YELLOW -- Market sizing figures are from third-party analyst reports and provide a relevant analog, but are not specific to the care orchestration category.

Competitive Landscape

Arbiter enters a crowded field of healthcare data and workflow platforms by positioning its AI as a unifying orchestrator. The competitive map is stratified. Incumbent electronic health record (EHR) vendors like Epic and Cerner control the foundational clinical data layer. Challengers include API-focused interoperability platforms such as Redox and Health Gorilla. A third segment consists of niche workflow automation tools for prior authorizations (e.g., Cohere Health) or referral management (e.g., ReferralMD).

Arbiter's defensible edge appears to be a combination of its acquired data assets and its founding team's payer-side relationships. The acquisition of SecondWave Delivery Systems provided an immediate data layer for risk adjustment and patient unification [Business Insider, Nov 2025]. CEO Michelle Carnahan's background at Cigna, UnitedHealth, and Kaiser Permanente suggests a distribution wedge into payer organizations [HIT Consultant, Nov 2025].

Data Accuracy: YELLOW -- Competitive positioning inferred from company claims and general market segments; no direct competitor comparisons from independent sources.

Opportunity

Arbiter aims to become the default operating system for value-based care delivery. The company's ambition is to build an AI system that connects healthcare, unifying clinical, financial, and policy data to automate workflows between payers and providers [PR Newswire, Nov 2025]. The reported early deployment with over 1,000 clinicians and several health plans suggests this initial entry point is gaining traction [Business Insider, Nov 2025].

Scenario	What happens	Catalyst
Payer-Led Platform Mandate	A top-5 national health plan mandates Arbiter's orchestration layer across its entire provider network.	Multi-year contract with a leading national payer [PR Newswire, Nov 2025].
Acquisition-Driven Ecosystem	Arbiter uses its capital to systematically acquire and integrate point-solution healthtech companies.	Acquisition of SecondWave Delivery Systems [Business Insider, Nov 2025].
Regulatory Tailwind	New federal rules around interoperability and prior authorization automation create a compliance-driven market.	CMS rules (e.g., Advancing Interoperability and Prior Authorization Burden Reduction) [HIT Consultant, Nov 2025].

Data Accuracy: YELLOW -- Key opportunity claims are sourced from company announcements and initial press coverage, but lack independent third-party validation of scale or economic impact.

Sources

1. [PR Newswire, Nov 2025] Arbiter Emerges from Stealth with $52M to Build the AI System that Connects Healthcare | https://www.prnewswire.com/news-releases/arbiter-emerges-from-stealth-with-52m-to-build-the-ai-system-that-connects-healthcare-302620237.html
2. [Business Insider, Nov 2025] Health Startup Arbiter Grabs $52 Million at $400 Million Valuation | https://www.businessinsider.com/health-startup-arbiter-grabs-52-million-at-400-million-valuation-2025-11
3. [HIT Consultant, Nov 2025] Arbiter Emerges from Stealth with $52M Funding to End Healthcare Fragmentation with AI | https://hitconsultant.net/2025/11/19/arbiter-emerges-from-stealth-with-52m-funding-to-end-healthcare-fragmentation-with-ai/
4. [AshbyHQ, 2026] Arbiter AI Jobs | https://jobs.ashbyhq.com/arbiter-ai
5. [Grand View Research, 2024] Healthcare IT Market Size, Share & Trends Analysis Report | https://www.grandviewresearch.com/industry-analysis/healthcare-it-market
6. [MarketsandMarkets, 2024] Healthcare Data Integration Market | https://www.marketsandmarkets.com/Market-Reports/healthcare-data-integration-market-263411682.html
7. [Health Affairs, 2023] Waste in the US Health Care System | https://www.healthaffairs.org/doi/10.1377/hlthaff.2022.00415