Key facts
- It has raised $5.0M; the latest was Seed Round ($4.5M) in Apr 2025.
- Notable investors include Y Combinator, Alumni Ventures, Riverside Ventures, Network VC, Paul Graham — 10 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 10 names
- ·Watchlist + deal alerts for Maritime Fusion
- ·The full record, as it builds
Funding rounds
No funding rounds for Maritime Fusion are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Maritime Fusion
Developer of compact fusion reactors designed to provide emission-free power for maritime applications. The company focuses on developing high-temperature superconducting tokamaks tailored for ship propulsion, aiming to deliver power with reduced material challenges and minimal regulatory hurdles compared to fission, enabling commercial shipping and defense sectors to transition away from bunker fuels and reduce emissions.
- Sector
- Business Products and Services (B2B)
- HQ
- San Francisco, CA, United States
- Founded
- 2024
- Employees
- 4
- Website
- maritimefusion.com/
- Ownership
- Privately Held (backing)
Maritime Fusion doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Maritime Fusion shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Maritime Fusion in its N-PORT filings yet. We sweep new filings monthly.