United States · 
Who invested in Flux Marine?
Flux Marine's investors include National Science Foundation, MassChallenge, Creative Destruction Lab, Boost VC and Winklevoss Capital, and 1 more on record.
United States · Venture startup
Who invested in Flux Marine
Funding summaryUpdated 26 Oct 2026
$15Mraised across 1 round since 2025, from 1 source
- Latest round
- Venture, $15MNov 2025
- Investors
- 6
The rounds
- Nov 2025
Founders and team
From the SEC filings it signed.
On the board, as filediBenjamin Charles SorkinDaylin Joseph Frantin
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 4 firms list Flux Marine as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Flux Marine
How much has Flux Marine raised?
Flux Marine has raised $15M across 1 round since 2025.
When did Flux Marine last raise?
Flux Marine's most recent round was a Venture of $15M in Nov 2025.
What was Flux Marine's biggest round?
Its most recent round, $15M in Nov 2025, is also its largest on record.
Who backed Flux Marine first?
Flux Marine's first round on record, in Nov 2025, was backed by National Science Foundation, MassChallenge and Creative Destruction Lab and 3 others.
What stage is Flux Marine at?
Flux Marine's latest named round is a Venture, in Nov 2025.
Where is Flux Marine based?
Flux Marine is based in the United States.
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In the same sector, and raised in the last eighteen months.
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