Layer Health

Boston, MA · Founded 2023 · Privately Held (backing)

Operator of a clinical reasoning platform intended to interpret medical records and derive meaningful clinical insights. Layer Health is based in Boston, MA and was founded in 2023. It was valued at $100 million at its early-stage round in Aug 2025, the last priced event on record. It has raised $33.5 million across 1 recorded round; the latest was a $29.5 million early-stage round in Dec 2024.

PMV mark · valuation
$100.0M
Oct 2026
Priced at
its early-stage round
Aug 2025
Total raised
$33.5M
Last round
Early Stage VC
Dec 2024
What is Layer Health worth?
$100.0MPrivateMarketView mark · Oct 2026

Valued at $100.0M at its early-stage round, Aug 2025. Nothing has traded since.

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Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
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Markrounds hold their value until the next priced eventMark, today
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Layer Health funding history

1 rounds
DateRoundRaisedPost-money
Dec 2024Early Stage VC$29.5M▮
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Layer Health valuation

Layer Health was valued at $100 million at its early-stage round in Aug 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Layer Health raised?

Layer Health has raised $33.5 million across 1 recorded round since 2024. The largest was a $29.5 million early-stage round in Dec 2024.

Layer Health has filed 2 Form Ds with the SEC, most recently in Dec 2025 ($29.5 million sold to 10 investors).

How Layer Health's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Layer Health, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by its last priced round. Question about this number? Full methodology →

Frequently asked about Layer Health

What is Layer Health worth?
Layer Health is valued at $100.0M as of Oct 2026. Valued at $100.0M at its early-stage round, Aug 2025. Nothing has traded since.
How much has Layer Health raised?
Layer Health has raised $33.5M in total funding across 1 recorded rounds.
When did Layer Health last raise?
Layer Health last raised in Dec 2024 (Early Stage VC), raising $29.5M.