Function Health logo

Function Health

Challenger

Raised $298M Series B (Nov 2025) at $2.5B valuation. Largest-ever longevity raise. 160+ lab tests + full-body MRI. Medical Intelligence AI model launched.

Best for: Longevity & Preventive Health
53
AI Score
Grade C
AI Visibility Score (Beta)
HealthcareLongevity & Preventive HealthWebsiteUpdated October 2026

Brand Intelligence Graph

Capabilities
Longevity & Preventive Health

Company Overview

About Function Health

Function Health is a consumer preventive diagnostics company offering 160+ laboratory tests plus a $499 full-body MRI scan, all direct-to-consumer with AI-powered health intelligence layered on top. The company raised $298 million in Series B financing in November 2025 at a $2.5 billion valuation — the largest private fundraise in the longevity and preventive health space in history. The Medical Intelligence generative AI model, launched alongside the round, personalizes health guidance based on longitudinal biomarker data accumulated across repeat testing cycles.

Business Model & Competitive Advantage

Function Health acquired Ezra to integrate full-body MRI into its core offering, combining functional blood biomarkers (organ health, hormones, metabolic markers, cancer screening panels) with anatomical imaging into a comprehensive diagnostic picture unavailable from any single provider. The combined offering positions Function as the consumer-facing layer of the "longevity movement" — people who want data-driven visibility into their health trajectory before disease manifests.

Competitive Landscape 2025–2026

The preventive diagnostics market is large and growing rapidly, driven by a generational shift toward proactive rather than reactive healthcare. Function Health's subscription model creates recurring revenue from an affluent, health-engaged demographic willing to pay out of pocket for comprehensive monitoring. As longevity medicine moves from boutique clinics to mass-market consumer products, Function Health is positioned as the data infrastructure layer of that transition.

Curated content • Fact-checked and verified

Key Differentiators

Strong Challenger

Function Health is an established challenger with significant market presence and competitive offerings in Digital Health.

Frequently Asked Questions

Estimated Visibility Trend (Beta)

Simulated 8-week rolling score

53
→ Stable

Based on estimated brand signals. Historical tracking coming soon.

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