Key facts
- Siren’s last known valuation is $11.6M (Feb 2018).
- It has raised $37.7M; the latest was Later Stage VC in Dec 2025.
- Notable investors include Enterprise Ireland, In-Q-Tel, AI Venture Labs, Frontline Ventures, Atlantic Bridge Capital — 13 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 13 names
- ·Watchlist + deal alerts for Siren
- ·The full record, as it builds
Funding rounds
No funding rounds for Siren are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Siren
Developer of an investigative intelligence platform designed to connect, federate, and extend elastic search or relational data sources. The company's platform employs artificial intelligence along with search, business intelligence, big data, graphs, and knowledge representation to provide features such as temporal analysis, full-text search with support for phonetics, misspellings, and highlighting, scientific visualisations, and time analysis, allowing organizations to enhance their analytics, visualisation, and data investigation capabilities.
- Sector
- Information Technology
- HQ
- Galway, Ireland
- Founded
- 2014
- Employees
- 78
- Website
- siren.io/
- Ownership
- Privately Held (backing)
Siren 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 Siren 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 Siren in its N-PORT filings yet. We sweep new filings monthly.