Key facts
- OOYOO’s last known valuation is $16.3M (Oct 2025).
- It has raised $4.9M; the latest was Seed Round ($4.9M) in Oct 2025.
- Notable investors include Mitsubishi UFJ Capital, Mizuho Capital, Energy & Environment Investment, UTokyo Innovation Platform Company, Kyoto University Innovation Capital — 9 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 9 names
- ·Watchlist + deal alerts for OOYOO
- ·The full record, as it builds
Funding rounds
No funding rounds for OOYOO are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About OOYOO
Developer of an advanced clean air technology intended to improve air and gas purification for a cleaner and more mobile world. The company uses proprietary high-performance membrane technology for cleaning air and other gases and to capture CO₂ from real exhaust gas environments with lower energy consumption, simpler and compact modular equipment, enabling industries to lower operational costs while promoting sustainability, and with flexible separation of multiple gases, including carbon dioxide, for reuse in applications such as sustainable CO₂ supply and broader industrial gas management.
- Sector
- Business Products and Services (B2B)
- HQ
- Kyoto, Japan
- Founded
- 2020
- Employees
- 16
- Website
- ooyoo.co.jp/
- Ownership
- Privately Held (backing)
OOYOO 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 OOYOO 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 OOYOO in its N-PORT filings yet. We sweep new filings monthly.