How much funding has Siren raised?

Siren has raised $27.56M in total. Its most recent round was a Strategic Investment in December 2025.

How many people work at Siren?

About 72, up 3% over the last 30 days, with 1 open roles.

Who are Siren's competitors?

Dropzone AI, Red Piranha, and Binary Defense are among the closest in Security Operations. The full competitive set, with overlap scoring, is in the platform.

Siren

Security OperationsGalway, Irelandfounded 2014private

Siren is a cybersecurity company specializing in Security Operations, founded in 2014 and headquartered in Galway, Ireland. It has raised $27.56M in total funding, employs about 72 people, and is privately held.

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updated Aug 22, 2026

The record

What Siren did, dated.

Jul 2026PartnershipOcient and Siren Partner to Deliver Trusted Investigative Intelligence for Sovereign National Security
Dec 2025Funding roundSiren Secures Investment to Advance AI-Driven Investigations for National Security
Feb 2023Funding roundCybersecurity firm Siren accelerates momentum with EUR 12 million European investment

selected events only — the full dated record (8 events since Feb 2023) lives in the platform

Momentum

34 out of 100.

Momentum blends hiring, funding, traffic and sentiment into one score, recomputed daily. The score is free; the pillars behind it unlock in the platform.

Growthlocked

Marketlocked

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Products

What Siren sells.

Siren PlatformInvestigative intelligence platform for security and threat analysisDetails ↗

In the platform

The other 440 data points.

Funding historyevery round, every lead investor
Headcount growthvelocity, departments, seniority
Open jobs1 live postings, role mix
Tech stackframeworks, clouds, security

Similar in Security Operations

FAQ

Common questions about Siren.

How much funding has Siren raised?: Siren has raised $27.56M in total. Its most recent round was a Strategic Investment in December 2025.
How many people work at Siren?: About 72, up 3% over the last 30 days, with 1 open roles.
Who are Siren's competitors?: Dropzone AI, Red Piranha, and Binary Defense are among the closest in Security Operations. The full competitive set, with overlap scoring, is in the platform.