United States · 
Who invested in Prolium?
Prolium's investors include RTW Investments LLC.
United States · Series A startup
Who invested in Prolium
One round we have observed, with the one investor 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.
Raised 8 months ago
Funding summaryUpdated 26 Oct 2026
$50Mraised across 1 round since 2026, from 1 source
- Latest round
- Series A, $50MMar 2026
- Investors
- 1
The rounds
- Mar 2026
Everyone who backed them
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Quick answers about Prolium
How much has Prolium raised?
Prolium has raised $50M across 1 round since 2026.
When did Prolium last raise?
Prolium's most recent round was a Series A of $50M in Mar 2026.
What was Prolium's biggest round?
Its most recent round, $50M in Mar 2026, is also its largest on record.
Who backed Prolium first?
Prolium's first round on record, in Mar 2026, was backed by RTW Investments LLC.
What stage is Prolium at?
Prolium's latest named round is a Series A, in Mar 2026.
Where is Prolium based?
Prolium is based in the United States.
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