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Terrestrial Bio

Drug Delivery · Woburn, MA · Founded 2011 · Privately Held (backing)

Developer of novel therapies designed to help in oncology care and infectious diseases. Terrestrial Bio is based in Woburn, MA and was founded in 2011. Its last reported valuation was $96.1 million in Jul 2023. It has raised $136 million across 5 recorded rounds; the latest was a $57.3 million later-stage round in Mar 2026.

Last reported valuation
$96.1M
Oct 2026
Priced at
—
Total raised
$136.2M
Last round
Later Stage VC
Mar 2026

Terrestrial Bio key facts

as of Oct 2026
  • Developer of novel therapies designed to help in oncology care and infectious diseases.
  • Terrestrial Bio is valued at approximately $96.1M as of Oct 2026 (last reported valuation).
  • It has raised $136.2M across 5 recorded rounds; the latest was Later Stage VC ($57.3M) in Mar 2026.
  • Notable investors include US National Science Foundation, RA Capital Management, Harvard Innovation Launch Lab, Gates Foundation, The Engine — 25 tracked in total.
  • Status: Privately Held (backing).
Last reported valuation
LOW confidence
$96.1M

Terrestrial Bio's last reported valuation, Jul 2023. Nothing priced has surfaced since.

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Terrestrial Bio funding rounds

5 rounds
Mar 2026Later Stage VC$57.3MSEC filing▮
Apr 2025Later Stage VC$9.0M▮
May 2024Later Stage VC$12.0M▮
Jul 2023Later Stage VC (Series B1)$11.1M▮
Jan 2023Later Stage VC (Series B)$37.0M▮
Full funding history →

Terrestrial Bio valuation

Terrestrial Bio's last reported valuation was $96.1 million in Jul 2023. No priced round, secondary trade or fund mark has surfaced since.

How much has Terrestrial Bio raised?

Terrestrial Bio has raised $136 million across 5 recorded rounds since 2023. The largest was a $9 million later-stage round in Apr 2025; the most recent was a $57.3 million later-stage round in Mar 2026.

Terrestrial Bio investors

25 investors are on record for Terrestrial Bio, including US National Science Foundation, RA Capital Management, Harvard Innovation Launch Lab and Gates Foundation. The later-stage round in Mar 2026 drew 16 investors.

Comparable companies

Comparable drug delivery names by valuation on PrivateMarketView: Zag Bio ($25 million) and Calla Lily Clinical Care ($14.4 million).

About Terrestrial Bio

Developer of novel therapies designed to help in oncology care and infectious diseases. The company's microarray patch (MAP) and applicator platform consists of a patch resembling an adhesive bandage, which is applied with a preloaded applicator and removed after a few minutes, enabling healthcare practitioners to improve patient outcomes with decreased treatment burdens.

Industry
Drug Delivery
Sector
Healthcare
HQ
Woburn, MA, United States
Founded
2011
Employees
42
Ownership
Privately Held (backing)

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