PXPXS RESEARCH
Private companyB

Function Health

By Published by PXS Research Updated

Consumer-facing demand aggregator and interpretation layer for preventive diagnostics: orders discounted lab panels and imaging from third-party providers (Quest Diagnostics, imaging network), then adds clinician review and AI-based longitudinal interpretation. · United States

functionhealth.com
Company overview

Direct-to-consumer preventive-health membership bundling 160+ lab tests twice a year, MRI/CT imaging and AI-assisted interpretation for $365/year.

Function sells an annual consumer membership ($365/year, HSA/FSA eligible) that includes two rounds of 160+ biomarker tests per year at Quest Diagnostics locations or via at-home blood draw, clinician-reviewed results, and a personalized action plan in its app. Members can add full-body MRI and CT scans (under $1,000) through a 200+ location imaging network, the Galleri multi-cancer test, and supplement guidance via acquired SuppCo. Its Medical Intelligence Lab (MI Lab) layers AI chat, protocols and record upload on top of the data.

Research mapping

Healthspan / Measure (AI) / Consumer-facing demand aggregator and interpretation layer for preventive diagnostics: orders discounted lab panels and imaging from third-party providers (Quest Diagnostics, imaging network), then adds clinician review and AI-based longitudinal interpretation.

Evidence boundary

Original analysis and independent corroboration remain under development. Commercial scale and durable technical advantage remain under review.

What makes it defensible

Comprehensive longitudinal biomarker testing is gated by physician orders, insurance and per-test pricing, so people get roughly 26 markers once a year at best. Function's claim is that a flat $365 membership unlocks 160+ markers twice a year plus imaging, and that owning the resulting longitudinal dataset is the scarce input for predictive, preventive medicine.

Position in the stack: Aggregates consumer demand for diagnostics and buys lab/imaging capacity wholesale from third parties, then owns the patient relationship, the longitudinal dataset and the interpretation layer - but does not perform lab testing or employ the labs itself.

Who buys it

Consumers (D2C Healthspan)

Named customers: National Basketball Players Association (NBPA) - member benefit program, Equinox members - EQX Optimize coaching program

Founding team

Source

Financing detail

Last round
$450M growth financing (Jul 2026)

Investors: Redpoint Ventures, Andreessen Horowitz (a16z), General Catalyst (Customer Value Fund), NFDG (Nat Friedman and Daniel Gross), Aglaé Ventures, Alumni Ventures, Battery Ventures, Wisdom VC, Draft Ventures, FirstMark, Menlo Ventures, Samsung Next, Seedcamp, Matt Damon, Magic Johnson, Zac Efron, Pedro Pascal, Kevin Hart, Blake Griffin, Breanna Stewart, Joel Embiid, Anthony Wood, Claire Hughes Johnson

Capital in context

Mapped funds and investors

Direct relationships supported by published evidence.

Reported holdings as-of

No sourced relationships mapped yet.

Disclosed investment history

No sourced relationships mapped yet.

Showing up to four relationships in each group. ETF weights describe the fund’s portfolio, not ownership of this company. Private investment history does not establish current ownership.

Evidence & media

Timeline

  1. partnership

    Google Health partnership

    Source
  2. partnership

    NYU Grossman School of Medicine research partnership

    Source
  3. Financing

    Growth financing - $450M from General Catalyst CVF

    Source
  4. Deployment

    Acquired Getlabs - at-home blood draws

    Source
  5. partnership

    OpenAI ChatGPT Health launch partner; Claude connector

    Source
  6. Model

    Medical Intelligence Lab (MI Lab) launched

    Source
  7. valuation

    $2.5B valuation

    Source
  8. Financing

    Series B - $298M led by Redpoint Ventures

    Source
  9. Product

    Acquired Ezra (AI full-body MRI)

    Source
  10. partnership

    GRAIL / Galleri multi-cancer test added

    Source
  11. Financing

    Series A - $53M led by Andreessen Horowitz

    Source
  12. partnership

    Equinox partnership (EQX Optimize)

    Source
  13. Product

    Beta launch

    Source
  14. Governance

    Company founded

    Source

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