Key facts
- It has raised $10.0M; the latest was Seed Round in Mar 2026.
- Notable investors include 4YFN, VERBUND X Ventures, KGAL Group, Findus Venture, Onsight Ventures — 6 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 6 names
- ·Watchlist + deal alerts for Zerothird
- ·The full record, as it builds
Funding rounds
No funding rounds for Zerothird are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Zerothird
Developer of a quantum cryptography system intended to generate unbreakable encryption keys. The company's system is based on the BBM92 protocol, a quantum cryptographic protocol considered unbreakable by current and future technology, enabling clients to get security for their communication channels.
- Sector
- Information Technology
- HQ
- Vienna, Austria
- Founded
- 2023
- Employees
- 18
- Website
- zerothird.com/
- Ownership
- Privately Held (backing)
Zerothird 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 Zerothird 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 Zerothird in its N-PORT filings yet. We sweep new filings monthly.