# Function Health Funding: How Much It Raised & Investors

> Function Health raised $450 million in a growth round in August 2026, led by General Catalyst, to scale its AI-driven preventive healthcare platform. Here's the full breakdown of the round, the backer, and what the company will do with the money.

_[Wortins Blog](https://www.wortins.com/blog) · Published Thursday, August 20, 2026_

**Function Health raised $450 million in a growth financing round**, announced on August 14, 2026 and led by **General Catalyst**. The raise comes just eight months after its Series B, underscoring how much capital is chasing the shift from reactive treatment to preventive, AI-driven diagnostics.

Here's the full breakdown of the raise and what it means for preventive healthcare.

## What is Function Health?

Function Health is an **AI-driven preventive healthcare platform**. It analyzes more than **160 biomarker tests** along with medical imaging to flag disease early, delivered to consumers through a membership model. Founded in **2022**, the company's premise is that continuous, broad-panel testing combined with AI analysis can catch health problems years before symptoms would otherwise prompt a doctor's visit.

## The raise: $450M growth round

The headline numbers:

- **Amount:** $450 million
- **Round:** Growth
- **Announced:** August 14, 2026
- **Lead investor:** General Catalyst

Function Health's previous raise was a **$298 million Series B** just eight months earlier, in December 2025. With this round, total funding now approaches **$800 million** — a pace of fundraising that reflects strong underlying revenue growth rather than just investor enthusiasm.

## Who invested in Function Health?

The growth round was led by **General Catalyst**. No co-leads or additional participants were disclosed for this round.

## What Function Health will do with the money

The company says the funding will go toward **scaling preventive screening, expanding biomarker analysis, and deepening its AI diagnostic capabilities** — effectively growing both the breadth of what it tests for and the sophistication of the AI that interprets those results.

## Why it matters

Function Health's raise reflects two forces converging in consumer healthcare:

1. **Preventive, consumer-paid healthcare is becoming a real business, not a niche.** Function Health is approaching **$1 billion in annualized revenue**, which validates that consumers will pay out of pocket for earlier, more frequent health monitoring rather than waiting for insurance-driven, symptom-triggered care.
2. **Capital is compounding quickly for proven preventive-health platforms.** Raising $450 million just eight months after a $298 million round, and nearing $800 million in total funding, shows investors backing revenue growth with speed rather than waiting for a traditional 12-to-18-month gap between rounds.
3. **AI-driven diagnostics is attracting competition across price points.** Function Health's growth round lands alongside other AI-powered preventive health platforms like [Neko Health](/blog/neko-health-funding), pointing to a broader race to own the "annual health scan" category before it consolidates.

Source: [Function Health Secures $450M Growth Financing for Preventive Care Platform](https://www.fiercehealthcare.com/health-tech/function-health-lands-450m-growth-financing-scale-tech-enabled-preventive-health)

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## Frequently asked questions

### How much did Function Health raise?

Function Health raised $450 million in a growth financing round announced on August 14, 2026.

### Who invested in Function Health?

The round was led by General Catalyst. No co-leads were disclosed.

### What does Function Health do?

Function Health is an AI-driven preventive healthcare platform that analyzes more than 160 biomarker tests and medical imaging to flag disease early, delivered through a membership model.

### How much has Function Health raised in total?

The $450 million growth round brings Function Health's total funding to more than $800 million, following a $298 million Series B in December 2025.

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