United States · 
Who invested in Nautilus?
Nautilus's investors include Y Combinator and Rebel Fund.
United States · Pre-seed startup
Who invested in Nautilus
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
$500Kraised across 1 round since 2025, from 1 source
- Latest round
- Pre-seed, $500KAug 2025
- Investors
- 2
The rounds
- Aug 2025
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Nautilus as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Nautilus
How much has Nautilus raised?
Nautilus has raised $500K across 1 round since 2025.
When did Nautilus last raise?
Nautilus's most recent round was a Pre-seed of $500K in Aug 2025.
What was Nautilus's biggest round?
Its most recent round, $500K in Aug 2025, is also its largest on record.
Who backed Nautilus first?
Nautilus's first round on record, in Aug 2025, was backed by Y Combinator and Rebel Fund.
What stage is Nautilus at?
Nautilus's latest named round is a Pre-seed, in Aug 2025.
Where is Nautilus based?
Nautilus is based in the United States.
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