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

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.

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

Tome Biosciences funding overview

Tome Biosciences at a glance

Frequently asked about Tome Biosciences funding

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