Key facts
- It has raised $12.5M across 3 recorded rounds; the latest was Seed Round ($4.6M) in Nov 2025.
- Notable investors include Y Combinator, MassChallenge, Endless Frontier Labs, Mark Cuban, New York Ventures — 21 tracked in total.
- Natrion has filed 8 Form Ds with the SEC since 2020, most recently Apr 2026 ($4.6M sold to 11 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 3 rounds
- ·The complete investor list — 21 names
- ·Watchlist + deal alerts for Natrion
Funding rounds
3 roundsAbout Natrion
Developer of advanced electrolyte and separator components designed to improve the performance and safety of rechargeable lithium batteries. The company offers solid-state electrolyte separator film rolls made from ion-conductive ceramic-polymer composites, which enhance thermal stability and prevent degradation, enabling battery manufacturers to achieve high energy density without requiring costly equipment modifications.
- Sector
- Business Products and Services (B2B)
- HQ
- Albany, NY, United States
- Founded
- 2018
- Employees
- 20
- Website
- natrion.co/
- Ownership
- Privately Held (backing)
Natrion 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 Natrion 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 Natrion in its N-PORT filings yet. We sweep new filings monthly.