Tome Biosciences Funding: $213M Raised, Series B (2025)

Tome Biosciences is based in Watertown, Massachusetts. It has raised $213M in total funding. Latest round: Series B.

Tome Biosciences funding overview

Tome Biosciences is based in Watertown, Massachusetts. Tome Biosciences has raised $213M in total disclosed funding. That places its disclosed total in the $100M–$250M range. Its most recent disclosed round is a Series B announced in July 2025. The round record for Tome Biosciences runs through 2025; nothing later has been disclosed. Investors on record include Andreessen Horowitz (a16z) Bio + Health, Arch Venture Partners, GV, Longwood Fund, Polaris Partners, Bruker Corporation and 2 others. 8 distinct backers are named across the disclosed rounds.

Tome Biosciences at a glance

Total raised
$213M
Latest round
Series B
Latest round date
July 2025
Headquarters
Watertown, Massachusetts
Notable investors
Andreessen Horowitz (a16z) Bio + Health, Arch Venture Partners, GV, Longwood Fund, Polaris Partners, Bruker Corporation, FUJIFILM Corporation, Alexandria Venture Investments

Frequently asked about Tome Biosciences funding

How much has Tome Biosciences raised?
Tome Biosciences has raised $213M in total disclosed funding across the rounds on record.
Who has invested in Tome Biosciences?
Andreessen Horowitz (a16z) Bio + Health, Arch Venture Partners, GV, Longwood Fund, Polaris Partners, Bruker Corporation are named among the investors backing Tome Biosciences.
What was the latest Tome Biosciences funding round?
The most recent disclosed round is a Series B, announced in July 2025.
Where is Tome Biosciences based?
Tome Biosciences is based in Watertown, Massachusetts.
When did Tome Biosciences last raise?
The last disclosed Tome Biosciences round closed in July 2025 at Series B.

We update the Tome Biosciences record whenever a new round is filed or announced, so the totals above track the public record rather than estimates. Related companies in Watertown and their backers are listed below.

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