CISO Tribune

Vendor comparison · 2 companies

Guardsix vs UnderDefense

Guardsix is a European security company that sells a sovereign security platform for lean defenders, with products for SIEM, NDR, SOAR, fleet management and access governance. UnderDefense sells UnderDefense MAXI, a security and compliance automation platform, and an MDR service in which security experts monitor, detect and respond to incidents. CISO Tribune files both under SOAR and security automation. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Guardsix
  • UnderDefense
Guardsix vs UnderDefense: Products, Customers and Funding Compared
GuardsixGuardsix is a European security company that sells a sovereign security platform for lean defenders, with products for SIEM, NDR, SOAR, fleet management and access governance.guardsix.comUnderDefenseUnderDefense sells UnderDefense MAXI, a security and compliance automation platform, and an MDR service in which security experts monitor, detect and respond to incidents.underdefense.com
What it sells
  • Guardsix SIEM[4][7][8][9][10]A SIEM for lean teams defending Europe, with sovereign log management and audit-ready evidence.
  • Guardsix NDR[4][9]Network detection that pairs with Guardsix SIEM across IT and OT.
  • Guardsix SOAR[4][10]The automation and response layer of Guardsix SIEM.
  • Guardsix Governance[4][12]Audit-ready access control, built first for healthcare.
  • UnderDefense MAXI[1][2][3][5][6]A security and compliance automation platform. UnderDefense MAXI integrates with SIEMs, firewalls and endpoint protection solutions.
  • UnderDefense Agentic AI SOC[4]AI agents investigate each alert. Analysts on shift 24/7 decide what happens next.
  • MDR[1][2][6]Security experts monitor, detect and respond to incidents.
  • Cloud-based SIEM[2]A cloud-based SIEM that collects, analyzes and responds to security events.
  • CIS AWS Benchmark assessment[8]A self-service assessment of AWS security.
Categories
Headquarters
Copenhagen, Denmark[3][8]Not stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Owned by Summa Equity since 2023[3][4][6]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[10]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Guardsix sells mainly to lean security teams at European organisations in energy, healthcare, government and public services. It also addresses MSSPs and security service providers that run many customer environments. It names critical national infrastructure operators as a focus, and it describes its NDR for complex, regulated environments with IT/OT infrastructure. Guardsix Governance is aimed first at hospital IT and compliance teams. Guardsix frames its offer around organisations accountable to NIS2, DORA and GDPR, and says it is on-prem by default.UnderDefense MAXI integrates with a customer's security infrastructure, including SIEMs, firewalls and endpoint protection solutions. UnderDefense offers compliance templates to organizations working toward standards such as SOC2 and ISO 27001. UnderDefense MAXI provides executive-level reports for C-level readers.
Last verified
September 27, 2026October 26, 2026

Where they overlap

  • Guardsix and UnderDefense are both filed under SOAR and security automation.

Where they differ, field by field

  • Guardsix's primary category is SIEM; UnderDefense's is MDR and managed SOC.
  • Guardsix is also filed under Network detection and response. UnderDefense is also filed under Penetration testing and red team services and Compliance automation.
  • Guardsix lists Guardsix SIEM, Guardsix NDR, Guardsix SOAR and Guardsix Governance. UnderDefense lists UnderDefense MAXI, UnderDefense Agentic AI SOC, MDR, Cloud-based SIEM and CIS AWS Benchmark assessment.
  • Guardsix is headquartered in Copenhagen, Denmark.
  • Guardsix is owned by Summa Equity, since 2023.

What it sells: Guardsix

What Guardsix SIEM does[4][7][8][9][10]
Guardsix SIEM delivers sovereign log management across hybrid, on-prem, OT and cloud. It is self-hosted and air-gappable, with node-based pricing. Ready-to-use content packs are aligned with NIS2, DORA and GDPR requirements.
What Guardsix NDR does[4][9]
Guardsix NDR pairs with Guardsix SIEM as one platform. It uses machine-learning analytics and stitches related signals into a single timeline across the seven phases of an attack. Guardsix says any analyst on a lean team can use it productively from day one.
What Guardsix SOAR does[4][10]
Guardsix SOAR provides automated investigation and response workflows built into the same platform as Guardsix SIEM. Playbooks execute locally.
What Guardsix Governance does[4][12]
Guardsix Governance for Healthcare gives hospital IT and compliance teams the visibility, reporting and audit trails that healthcare regulators expect. Reviewers comment, approve and escalate in-browser, and every action is preserved alongside the evidence.

What it sells: UnderDefense

What UnderDefense MAXI does[1][2][3][5][6]
UnderDefense MAXI natively monitors endpoints, networks, users and decoy beacons. UnderDefense MAXI provides ready-to-use playbooks, AI-powered alert enrichment and notifications through Slack, Jira or a preferred tool. UnderDefense MAXI provides pre-built compliance templates for standards such as SOC2 and ISO 27001.
What UnderDefense Agentic AI SOC does[4]
UnderDefense Agentic AI SOC uses AI agents that investigate each alert. Analysts on shift 24/7 decide what happens next.
What CIS AWS Benchmark assessment does[8]
UnderDefense offers a self-service CIS AWS Benchmark assessment. The assessment covers evaluating the maturity of cloud security controls, identifying misconfigurations, providing detailed mitigation instructions and giving a summary table with a final CVSS v3.0 score.

Questions about Guardsix and UnderDefense

What do Guardsix and UnderDefense sell?
Guardsix sells Guardsix SIEM, Guardsix NDR, Guardsix SOAR and Guardsix Governance. UnderDefense sells UnderDefense MAXI, UnderDefense Agentic AI SOC, MDR, Cloud-based SIEM and CIS AWS Benchmark assessment.
Are Guardsix and UnderDefense in the same category?
They share SOAR and security automation. Guardsix's primary category is SIEM and UnderDefense's is MDR and managed SOC.
Where are Guardsix and UnderDefense headquartered?
Guardsix is headquartered in Copenhagen, Denmark.
Who owns Guardsix and UnderDefense?
Guardsix is owned by Summa Equity, since 2023.
Who are Guardsix and UnderDefense sold to?
From its own pages, Guardsix sells mainly to lean security teams at European organisations in energy, healthcare, government and public services. UnderDefense MAXI integrates with a customer's security infrastructure, including SIEMs, firewalls and endpoint protection solutions.

About Guardsix

Guardsix is a European security company that sells a sovereign security platform for lean defenders, with products for SIEM, NDR, SOAR, fleet management and access governance.[1][14]

Guardsix says its platform is aimed at European organisations that protect society, such as energy, healthcare and public services, and the partners who serve them. Guardsix says cloud-first security shifts control away from defenders while leaving accountability behind, and says it closes that gap by giving customers control over their data, deployment and operations. Guardsix says it designs for European legal and operational requirements, partners with regional cloud providers, and offers on-prem and sovereign-ready deployments. Guardsix offers on-demand or instructor-led training to help analysts grow from day one.

Guardsix SIEM is for lean teams defending Europe in energy, healthcare and government, and for the MSSPs who serve them. Guardsix says it delivers sovereign log management across hybrid, on-prem, OT and cloud environments, and continuous audit-ready evidence for NIS2, DORA and GDPR Article 32. Guardsix SIEM is self-hosted and air-gappable, and its pricing is node-based, so spend scales with the infrastructure rather than with data volume. Content packs aligned with NIS2, DORA and GDPR requirements are ready to use. Guardsix SIEM brings logs from IT estates, OT environments, identity systems, network devices and applications into a single instance that the customer controls.[7][9][11]

Guardsix NDR pairs with Guardsix SIEM as one platform with a chain of events across IT and OT. Guardsix says it uses machine-learning analytics and stitches related signals into a timeline across the seven phases of an attack. Guardsix says Guardsix NDR is designed so any analyst on a lean team can use it productively from day one. Guardsix SOAR is the automation and response layer of Guardsix SIEM, and its playbooks execute locally. Alerts from Guardsix SIEM and NDR enter SOAR with full context already attached, and Guardsix SOAR can expand with hundreds of additional integrations across EDR, identity, cloud and OT.[9][10]

Guardsix Governance for Healthcare gives hospital IT and compliance teams the visibility, reporting and audit trails that healthcare regulators expect. Guardsix says the access control model it built first for healthcare applies to any regulated environment where access has to be visible, explainable and defensible.[12]

Guardsix describes two audiences. For critical national infrastructure operators, Guardsix says it helps them. Guardsix points to hospitals, energy grids, water management and transportation as systems whose failure harms communities. Guardsix says it prices by the number of nodes, devices or entities in an environment.[13]

Guardsix was formerly Logpoint, which officially announced its transformation into Guardsix on March 12, 2026. Guardsix traces its history to a company founded in Denmark as a cybersecurity consulting business. Swedish investment firm Summa Equity acquired a majority stake in Logpoint, and Guardsix names Summa as its majority investor. Logpoint acquired the Danish cybersecurity company Muninn, specialised in AI-driven NDR. Logpoint also acquired the Israeli company SecBI, specialising in SOAR, XDR and automated threat detection. Mikkel Drucker joined Logpoint as CEO. Guardsix A/S carries the company reg. no. 26 30 19 39, and Guardsix says it is EU-HQ and EU-governed.[1][2][5][10][11][12]

Guardsix on the record

Sources

Guardsix full record

  1. [1]Command centreGuardsix · guardsix.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]34576478235293 Logpoint is now guardsixGuardsix · servicedesk.guardsix.com · published March 12, 2026 · Tier A
  3. [3]Summa equity invests in logpoint to create european cybersecurity powerhouseSumma Equity · summaequity.com · published March 2, 2023 · Tier A
  4. [4]Guardsix | Your closest ally in cyber securityGuardsix · undated page, accessed October 25, 2026 · Tier A
  5. [5]Product UpdatesGuardsix · undated page, accessed October 25, 2026 · Tier A
  6. [6]About guardsix | European Cybersecurity AllyGuardsix · undated page, accessed November 3, 2026 · Tier A
  7. [7]Guardsix SIEM | Built for Lean Security TeamsGuardsix · undated page, accessed November 3, 2026 · Tier A
  8. [8]Guardsix for Compliance | NIS2Guardsix · undated page, accessed November 3, 2026 · Tier A
  9. [9]Guardsix NDR | Network Detection & ResponseGuardsix · undated page, accessed November 3, 2026 · Tier A
  10. [10]Guardsix SOAR | Security Automation & ResponseGuardsix · undated page, accessed November 3, 2026 · Tier A
  11. [11]Guardsix Fleet | Centralised Security OperationsGuardsix · undated page, accessed November 3, 2026 · Tier A
  12. [12]Guardsix Governance | Audit-ready access controlGuardsix · undated page, accessed November 3, 2026 · Tier A
  13. [13]Guardsix Pricing | Predictable Cyber Security Platform CostsGuardsix · undated page, accessed November 3, 2026 · Tier A
  14. [14]Master Terms of Service for SaaS-version of Logpoint SIEMGuardsix · undated page, accessed November 3, 2026 · Tier A

UnderDefense full record

  1. [1]underdefense.comUnderDefense · underdefense.com · undated page, accessed October 26, 2026 · Tier A
  2. [2]Compliance PricingUnderDefense · undated page, accessed November 10, 2026 · Tier A
  3. [3]Agentic AI SOC & Compliance Automation Platform | UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  4. [4]Elastic Cloud Pricing 2026: Serverless, Hosted, and SIEMUnderDefense · undated page, accessed November 10, 2026 · Tier A
  5. [5]Cloudflare Pricing 2026: WAF, Zero Trust, and EnterpriseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  6. [6]Palo Alto Networks Pricing 2026: Firewalls, SASE, and XDRUnderDefense · undated page, accessed November 10, 2026 · Tier A
  7. [7]2025 MXDR Pricing Guide: Choosing the Right MXDR providerUnderDefense · undated page, accessed November 10, 2026 · Tier A
  8. [8]Episode 4: Cyber Resilience 201 — AWS Cloud Security - UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  9. [9]E-Mail Under Attack - UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  10. [10]UnderDefense MAXI Reviews & Product DetailsG2 · undated page, accessed November 10, 2026 · Tier C

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