Portal Biotechnologies

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

Developer of a cell engineering platform designed to enable novel cell analytics and next-generation cell therapies. Portal Biotechnologies is based in Watertown, MA and was founded in 2023. Its last reported valuation was $34.8 million in Dec 2024. It has raised $12 million across 2 recorded rounds; the latest was a $9 million early-stage round in May 2026.

Last reported valuation
$34.8M
Oct 2026
Priced at
—
Total raised
$12.0M
Last round
Early Stage VC
May 2026
What is Portal Biotechnologies worth?
$34.8Mlast reported valuation · Oct 2026

Portal Biotechnologies's last reported valuation, Dec 2024. Nothing priced has surfaced since.

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Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
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Portal Biotechnologies funding history

2 rounds
DateRoundRaisedPost-money
May 2026Early Stage VC$9.0M▮
Dec 2024Early Stage VC$11.7M▮
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Portal Biotechnologies valuation

Portal Biotechnologies's last reported valuation was $34.8 million in Dec 2024. No priced round, secondary trade or fund mark has surfaced since.

How much has Portal Biotechnologies raised?

Portal Biotechnologies has raised $12 million across 2 recorded rounds since 2024. The largest was a $9 million early-stage round in May 2026.

Portal Biotechnologies has filed 3 Form Ds with the SEC since 2024, most recently in May 2026 ($11.7 million sold to 43 investors).

How Portal Biotechnologies'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 Portal Biotechnologies, 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 last reported valuation. Question about this number? Full methodology →

Frequently asked about Portal Biotechnologies

What is Portal Biotechnologies worth?
Portal Biotechnologies is valued at $34.8M as of Oct 2026. Portal Biotechnologies's last reported valuation, Dec 2024. Nothing priced has surfaced since.
How much has Portal Biotechnologies raised?
Portal Biotechnologies has raised $12.0M in total funding across 2 recorded rounds.
When did Portal Biotechnologies last raise?
Portal Biotechnologies last raised in May 2026 (Early Stage VC), raising $9.0M.