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UnitedHealth UNH

HealthcareMarket cap $338B21 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 · $2.7TAWS healthcare cloud platform
  • NateraHealthcare · $60BUnitedHealth covers Natera Panorama prenatal testing
  • Quest DiagnosticsHealthcare · $26BLab benefit management
  • Laboratory CorpHealthcare · $25BLab testing services
  • DaVita IncHealthcare · $11BDialysis insurance coverage
  • Ensign GroupHealthcare · $10BEnsign skilled nursing facilities in UnitedHealth network
  • CareTrust REITReal Estate · $9BCareTrust skilled nursing in UnitedHealth care network
  • ExlService HoldingsTechnology · $6BExlService analytics for UnitedHealth claims processing
  • AmedisysHealthcare · $4BAmedisys home health reimbursed by UnitedHealth
  • Premier IncHealthcare · $3BPremier GPO procurement serves UnitedHealth hospitals
  • PhreesiaHealthcare · $600MPhreesia patient intake at UnitedHealth network practices

Partners 8

Strategic partnerships, joint products and alliances

  • CVS HealthHealthcare · $114BCompeting pharmacy benefit managers
  • WelltowerReal Estate · $72BUnitedHealth operates in Welltower
  • CignaHealthcare · $72BCompeting health insurers
  • HumanaHealthcare · $55BCompeting Medicare Advantage plans
  • VentasReal Estate · $44BHealthcare REIT
  • Molina HealthcareHealthcare · $10BCompeting Medicaid managed care insurers
  • Exact SciencesHealthcare · $8BUnitedHealth covers Cologuard colon cancer screening
  • Agilon HealthHealthcare · $1BMedicare 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.