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UnitedHealth UNH

HealthcareMarket cap $520B21 connections

UnitedHealth Group is the largest US health insurer and one of the most complex healthcare companies in the world. Its Optum division provides pharmacy benefits (OptumRx), health services (OptumHealth), and health IT (OptumInsight). Together, UNH touches 70% of the US health system - it insures patients, manages their pharmacy benefits, and often employs their doctors.

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Suppliers 11

Companies that sell to UnitedHealth

  • AmazonConsumer & Retail · $2.0TAWS healthcare cloud platform
  • Laboratory CorpHealthcare · $18BLab testing services
  • Quest DiagnosticsHealthcare · $15BLab benefit management
  • DaVita IncHealthcare · $11BDialysis insurance coverage
  • NateraHealthcare · $10BUnitedHealth covers Natera Panorama prenatal testing
  • Ensign GroupHealthcare · $6BEnsign skilled nursing facilities in UnitedHealth network
  • ExlService HoldingsTechnology · $6BExlService analytics for UnitedHealth claims processing
  • CareTrust REITReal Estate · $5BCareTrust skilled nursing in UnitedHealth care network
  • AmedisysHealthcare · $4BAmedisys home health reimbursed by UnitedHealth
  • Premier IncHealthcare · $3BPremier GPO procurement serves UnitedHealth hospitals
  • PhreesiaHealthcare · $2BPhreesia patient intake at UnitedHealth network practices

Partners 8

Strategic partnerships, joint products and alliances

  • CVS HealthHealthcare · $95BCompeting pharmacy benefit managers
  • CignaHealthcare · $90BCompeting health insurers
  • WelltowerReal Estate · $72BUnitedHealth operates in Welltower
  • HumanaHealthcare · $55BCompeting Medicare Advantage plans
  • VentasReal Estate · $22BHealthcare REIT
  • Molina HealthcareHealthcare · $18BCompeting Medicaid managed care insurers
  • Exact SciencesHealthcare · $8BUnitedHealth covers Cologuard colon cancer screening
  • Agilon HealthHealthcare · $2BMedicare Advantage risk contracts with UnitedHealthcare

Competitors 2

Companies it competes with

Key relationships in depth

UnitedHealth & Amazon

UnitedHealth Group uses Amazon Web Services as a major cloud infrastructure provider for its Optum technology division, which processes claims, provides pharmacy benefit management, and delivers analytics for the US healthcare system. AWS handles significant data processing workloads for Optum's care management and population health platforms.

Why it matters: UnitedHealth is the largest health insurer in the US with $400B+ in annual revenue (2024). Optum, its technology and pharmacy arm, generates $250B+ in revenue and is the largest employer of physicians in the US. Modernizing Optum's data infrastructure on AWS enables real-time claims processing, fraud detection, and care gap identification at scale.

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Relationships are compiled by VexMap from company filings, announcements and reporting, and last reviewed September 2026. Spotted something wrong? Tell us. Not investment advice.