Key facts
- EF Polymer’s last known valuation is $21.0M (May 2023).
- It has raised $22.4M; the latest was Later Stage VC ($17.8M) in Sep 2025.
- Notable investors include J-Startup, SVG Ventures|THRIVE, Beyond Next Ventures, Japan Green Investment Corporation for Carbon Neutrality, Suzuyo Shoji — 47 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 47 names
- ·Watchlist + deal alerts for EF Polymer
- ·The full record, as it builds
Funding rounds
No funding rounds for EF Polymer are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About EF Polymer
Manufacturer of natural water retention polymers intended to mitigate the problems of water scarcity. The company's polymers are developed based on organic waste such as citrus fruits, banana peels, and sugar cane bagasse that absorb water in huge amounts and then release it as plant requirements, enabling farmers to use it in the form of fertilizers and reduce irrigation water requirements.
- Sector
- Materials and Resources
- HQ
- Okinawa, Japan
- Founded
- 2018
- Employees
- 63
- Website
- efpolymer.com/
- Ownership
- Privately Held (backing)
EF Polymer 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 EF Polymer 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 EF Polymer in its N-PORT filings yet. We sweep new filings monthly.