Key facts
- It has raised $2.0M; the latest was Seed Round ($1.9M) in Jul 2025.
- Notable investors include Antler, D11Z.Ventures, Atlas SGR, Tioga Trust, Volve Capital.
- Status: Privately Held (backing).
- ·The complete investor list — 5 names
- ·Watchlist + deal alerts for Whisper
- ·The full record, as it builds
Funding rounds
No funding rounds for Whisper are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Whisper
Developer of cybersecurity monitoring technology designed to analyze internet infrastructure activity for threat detection and prediction. The company's platform processes large-scale real-time internet infrastructure data through a graph-based system to map relationships and activity patterns across networks, enabling security teams to identify anomalies and predict potential cyberattacks with improved speed and analytical accuracy.
- Sector
- Information Technology
- HQ
- Amsterdam, Netherlands
- Founded
- 2025
- Employees
- 8
- Website
- whisper.security/
- Ownership
- Privately Held (backing)
Whisper 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 Whisper 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 Whisper in its N-PORT filings yet. We sweep new filings monthly.