Key facts
- Siiibo’s last known valuation is $19.3M (Oct 2023).
- It has raised $16.9M; the latest was Later Stage VC ($6.8M) in Apr 2025.
- Notable investors include East Ventures, DNX Ventures, Aozora Corporate Investment, Angel Bridge, 01Booster — 17 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 17 names
- ·Watchlist + deal alerts for Siiibo
- ·The full record, as it builds
Funding rounds
No funding rounds for Siiibo are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Siiibo
Operator of an online securities company intended to help investors issue and purchase private bonds easily. The company offers free, transparent and fair direct finance that provides opportunities for advisory to companies, such as support for diversification of funding using small private placement bonds, enabling private investors to get familiar with the issuance of corporate bonds.
- Sector
- Financial Services
- HQ
- Tokyo, Japan
- Founded
- 2019
- Website
- siiibo.com/
- Ownership
- Privately Held (backing)
Siiibo 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 Siiibo 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 Siiibo in its N-PORT filings yet. We sweep new filings monthly.