SIEM

GuardSix SIEM: Sovereign, Self-Hosted Log Management Your data. Your deployment. Your jurisdiction.

Guardsix SIEM is for lean teams defending Europe — energy, healthcare, government, and the MSSPs who serve them.

Two outcomes, delivered every day: sovereign log management across hybrid, on-prem, OT and cloud, and continuous, audit-ready evidence for NIS2, DORA and GDPR Article 32.

The SIEM you inherited was not built for you.

You are accountable to NIS2, DORA, GDPR Article 32 and your sector regulator. You answer to a board, an auditor, and the citizens, patients or customers behind every log line. And you are doing it with a fraction of the headcount your tooling assumes you have.

This introduces cloud dependency risk:

Visibility cut to fit the bill

Ingestion-based pricing punishes you twice — bigger bills when data spikes, less coverage when finance pulls it back. The auditor never accepts "we stopped logging that to save money."

Sovereignty is a mandate, not a marketing line

In Europe, where security data lives, who controls it, and on whose law it is governed are no longer optional. Cloud-first SIEMs cannot give you a straight answer on any of the three.

Built for teams you do not have

Cloud-first SIEMs were designed around 30-analyst SOCs with dedicated detection engineers. A lean European team cannot operationalise that complexity. You pay enterprise prices for capability you cannot run.

The sovereign alternative

Guardsix SIEM gives you the outcomes — without the external dependencies

Whether you defend a national grid, a hospital trust, a city, or dozens of tenants as an MSSP, the qualifying criteria are the same. Sovereign deployment. Predictable cost. A SIEM a lean team can actually run. We got your six.

Your environment, your governance.

Self-hosted, air-gappable and aligned with EU jurisdiction. No CLOUD Act or FISA exposure. Your data stays governed by your laws.

Node-based pricing you can plan around.

No ingestion surprises, no year-two reset, and no limiting visibility just to stay under cap.

Audit-ready from day one.

Ready-to-use content packs aligned with NIS2, DORA and GDPR requirements.

Visibility across everything you run.

Hybrid, on-prem, OT and cloud — without re-architecting or adding a second product.

01 Unified visibility

One log layer for everything you run

Guardsix SIEM gives lean teams the clarity they need to stay ahead of threats, even under pressure. You get meaningful detections, reliable context, and a clear understanding of what’s unfolding without needing a large team or specialised engineering function.

You start every day with signal, not noise.

02 Predictable cost

Spend you can plan

Node-based pricing means spend scales with the infrastructure you run, not the data you generate. Traffic spikes, new log sources and longer retention stop showing up as bigger bills — so coverage and budget stop being a zero-sum trade-off your finance director has to choose between.

03 Data sovereignty

Data that stays in your jurisdiction

Self-hosted, air-gappable, EU-headquartered and EU-governed — no CLOUD Act, FISA Section 702 or third-country disclosure exposure. The sovereignty claim holds up structurally, not just on a slide your legal team has to reinterpret.

04 Audit readiness

Evidence the auditor can accept

A continuous record of who accessed what data, when, and under what authorisation — across every system in scope. The evidence is demonstrated by Guardsix SIEM, not described in a document, and it is ready the day the auditor walks in.

05 Framework alignment

Mapped to NIS2, DORA and GDPR Article 32

Out-of-the-box content packs aligned to the frameworks your regulator already uses, plus the sector rules that sit on top — patient data, OT, financial services, public sector.

06 Lean-team operability

Sustainable for the team you actually have

Audit-readiness becomes a posture you maintain by design, not a project you start when the regulator calls. Lean teams stay ready every quarter without specialist headcount, certifications, or a detection-engineering function they cannot hire.

SIEM sizing calculator

Estimate your SIEM size

Get an estimate on the daily amount of data ingested from your infrastructure into your Guardsix SIEM platform.