Who invested in Proton Bio?
Proton Bio's investors include Hill House Capital and China Merchants Capital.
Who invested in Proton Bio
One round we have observed, with the 2 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Funding summaryUpdated 26 Oct 2026
$76Mraised across 1 round since 2022, from 1 source
- Latest round
- Series B, $76MAug 2022
- Investors
- 2
The rounds
- Aug 2022
Everyone who backed them
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Quick answers about Proton Bio
How much has Proton Bio raised?
Proton Bio has raised $76M across 1 round since 2022.
When did Proton Bio last raise?
Proton Bio's most recent round was a Series B of $76M in Aug 2022.
What was Proton Bio's biggest round?
Its most recent round, $76M in Aug 2022, is also its largest on record.
Who backed Proton Bio first?
Proton Bio's first round on record, in Aug 2022, was backed by Hill House Capital and China Merchants Capital.
What stage is Proton Bio at?
Proton Bio's latest named round is a Series B, in Aug 2022.
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