Nomios vs Thales (S21sec)
Nomios and Thales (S21sec) are both Services firms that work with your existing tools. Nomios targets SMB, Mid-market, and Enterprise organizations, while Thales (S21sec) serves Enterprise. Nomios includes 4 attack surfaces in base pricing (Endpoint, Cloud, Identity, Network), compared to 2 for Thales (S21sec) (Network, OT/ICS).
Buyer brief
Nomios and Thales (S21sec) are both Services firms that work with your existing tools. Nomios targets SMB, Mid-market, and Enterprise organizations, while Thales (S21sec) serves Enterprise. Nomios includes 4 attack surfaces in base pricing (Endpoint, Cloud, Identity, Network), compared to 2 for Thales (S21sec) (Network, OT/ICS).
Nomios offers broader coverage (4 surfaces vs. 2). Thales (S21sec) may suit teams that need depth over breadth.
At a glance
| FIELD |  |  |
|---|---|---|
| Best fit | European buyers that need EU-hosted MDR data and a local SOC relationship | Critical infrastructure and public-sector buyers that need Thales/S21sec regional cyber detection and response |
| Price | Not published | Custom quote |
| Response authority | 3/6 actions · Configurable | 2/6 actions · Configurable |
| Stack | Works with existing stack | Works with existing stack |
| Data access | Dashboards | Reports only |
| Warranty | None listed | None listed |
- Best fit
- European buyers that need EU-hosted MDR data and a local SOC relationship
- Price
- Not published
- Response authority
- 3/6 actions · Configurable
- Stack
- Works with existing stack
- Data access
- Dashboards
- Warranty
- None listed
- Best fit
- Critical infrastructure and public-sector buyers that need Thales/S21sec regional cyber detection and response
- Price
- Custom quote
- Response authority
- 2/6 actions · Configurable
- Stack
- Works with existing stack
- Data access
- Reports only
- Warranty
- None listed
Detailed comparison
| FIELD | NomiosTECH-AGNOSTIC | Thales (S21sec)TECH-AGNOSTIC |
|---|---|---|
| Fit | ||
| Target size | SMB, Mid-market, Enterprise | Enterprise |
| Sentiment | Mixed | Mixed |
| Your stack | ||
| Approach | Works with your tools | Works with your tools |
| EDR integrations | Palo Alto Networks Cortex XDRCrowdStrikeMicrosoft Defender for EndpointCustomer EDR through Custom MDR | Customer endpoint security tools |
| SIEM integrations | Nomios Sovereign Managed SIEMMicrosoft SentinelSplunkIBM QRadarPalo Alto Networks XSIAM | Customer SIEM platformsThales SOC tooling |
| Coverage | EPEndpoint: CoveredCloudCloud: CoveredIDIdentity: CoveredSaaSSaaS: LimitedNetNetwork: CoveredOTOT/IoT: Optional add-on | EPEndpoint: LimitedCloudCloud: LimitedIDIdentity: LimitedSaaSSaaS: LimitedNetNetwork: CoveredOTOT/IoT: Covered |
| Response | ||
| Response type | Active Remediation | Active Remediation |
| Approval policy | Configurable | Configurable |
| Response actions | IsolateContainCustom playbooks | ContainCustom playbooks |
| IR included | Separate | ✓ Included |
| Cost | ||
| Price range | Not published | Not published |
| Minimum seats | None | None |
| Breach warranty | – | – |
| More details | ||
| Requires own agent | No | No |
| Endpoints | ✓ Included | ~ Limited |
| Cloud workloads | ✓ Included | ~ Limited |
| Identity | ✓ Included | ~ Limited |
| SaaS apps | ~ Limited | ~ Limited |
| Network | ✓ Included | ✓ Included |
| OT/ICS | + Optional | ✓ Included |
| Threat hunting | ✓ Included | ✓ Included |
| Response SLA | Not disclosed | Not disclosed |
| 24/7 coverage | ✓ | ✓ |
| Pricing model | Tiered Guardian xMDR pricing and custom pricing for tailored MDR. Public materials state Guardian xMDR has Essential, Core, Advanced and Elite tiers, with scoping starting from endpoint count and expanding by coverage needs. Public price amounts are not listed. | Custom quote for Thales Cyber Detection and Response, Managed Security Services, SOC and MDR. Public prices are not published. |
| Hidden cost warnings | Nomios says Guardian xMDR has transparent tier-based pricing, but public price amounts are not listed.. Guardian xMDR is built on Cortex XDR, so buyers should price Palo Alto licensing and migration effort if they are not already on that stack.. Coverage outside Cortex XDR's native library may require the Sovereign Managed SIEM extension.. Custom MDR can keep existing tools, but SIEM, EDR and data-retention costs remain part of total cost.. No public breach warranty, trial or fixed response-time SLA was found. | The current S21sec domain routes to Thales-branded services, so buyers wanting legacy S21sec-specific delivery should confirm contracting entity, SOC location and delivery team.. Public pages do not publish prices, minimum terms, service credits, MTTD/MTTR or formal MDR SLAs.. Thales offers a broad cybersecurity services portfolio; buyers should separate base MDR scope from CTI, DRPS, DFIR, CERT, ICS monitoring and advisory services.. Named endpoint, identity and cloud containment actions are not public and should be confirmed tool by tool.. Data retention, raw log access, offboarding and detection-content export rights are not described publicly. |
| Data portability | Partial | Partial |
| Contract terms | Subscription, Custom | Custom cyber detection and response engagement, Managed Security Services, SOC and MDR, Critical-infrastructure cybersecurity services |
| Channels | EmailPhone | EmailPhonePortal |
| Data access | Dashboards | Reports only |
| Dedicated analyst | – | – |
| SOC regions | Europe | EuropeMEAAPAC |
| Onboarding | Not published. Guardian xMDR is positioned as structured and fast to deploy; Custom MDR is scoped through direct engagement based on existing tools and required detection engineering. | Not published. Thales describes customer-centric service roadmaps and selecting/deploying detection and response technologies, but no standard MDR onboarding timeline. |
| Industry focus | HealthcareManufacturingFinancial ServicesGovernmentRetailTechnology | Critical InfrastructureGovernmentDefenseEnergyManufacturingAviationSpaceFinancial ServicesTelecommunicationsHealthcareTransportationAutomotiveUtilitiesMaritime |
| MTTD | Not published | Not published |
| MTTR | Not published | Not published |
| Community view | Nomios has a European infrastructure and security-services footprint, but public MDR-specific peer review volume is limited. The clearest public evidence is from Nomios' own MDR page and Guardian xMDR launch material rather than independent managed-service evaluations. | The current public evidence is strong for Thales-branded global SOC, MDR, CTI, DFIR and critical-infrastructure detection and response, but weak for S21sec as a standalone public MDR brand. Buyers should validate current delivery model, SOC location, response authority, pricing and whether the contract is with Thales/S21sec in the relevant country. |
| Compliance | ISO 27001SOC 2 Type IIGDPRNIS2DORA | DORATIBER-EUPCI DSSEASA Part-ISEASAICAOUNECE |
| Certifications | ISO 27001SOC 2 Type II | 8 threat intelligence and AI-driven SOCs around the worldSOCs in France, Morocco, the Netherlands, Belgium and Luxembourg, Portugal and Spain, and New Zealand and Australia |
| Founded | 2004 | – |
| Data retention | Not published as a fixed MDR retention period. Nomios states Guardian xMDR customer data is hosted within the EU; retention should be confirmed by tier and SIEM scope. | Not published. Public pages do not describe default log retention, raw log access, storage tiers or export terms for Thales SOC and MDR. |
| API available | – | – |
| Website | Visit → | Visit → |
FAQ
What is the main difference between Nomios and Thales (S21sec)?
Nomios is a Services firm that is technology-agnostic (works with your existing tools). Thales (S21sec) is a Services firm that is technology-agnostic (works with your existing tools). Nomios covers 4 attack surfaces in base pricing vs. 2 for Thales (S21sec).
How do Nomios and Thales (S21sec) differ in response capabilities?
Nomios supports 3 autonomous actions (custom playbooks, endpoint isolation, network containment) and approval is configurable. Thales (S21sec) supports 2 autonomous actions (custom playbooks, network containment) and approval is configurable. Incident response is not included with Nomios and included with Thales (S21sec).
How does Nomios pricing compare to Thales (S21sec)?
Nomios pricing: Custom-quoted pricing. Thales (S21sec) pricing: Not published. Watch for with Nomios: Nomios says Guardian xMDR has transparent tier-based pricing, but public price amounts are not listed.; Guardian xMDR is built on Cortex XDR, so buyers should price Palo Alto licensing and migration effort if they are not already on that stack.. Watch for with Thales (S21sec): The current S21sec domain routes to Thales-branded services, so buyers wanting legacy S21sec-specific delivery should confirm contracting entity, SOC location and delivery team.; Public pages do not publish prices, minimum terms, service credits, MTTD/MTTR or formal MDR SLAs..
Should I choose Nomios or Thales (S21sec)?
Choose Nomios if: european buyers that need EU-hosted MDR data and a local SOC relationship. Choose Thales (S21sec) if: critical infrastructure and public-sector buyers that need Thales/S21sec regional cyber detection and response. Nomios is not ideal for buyers that need public per-endpoint price amounts before a sales call. Thales (S21sec) is not ideal for buyers that need a standalone legacy S21sec-branded MDR package.
Daylight Security
AI-native MDR for buyers comparing active remediation across endpoint, cloud, identity, and SaaS. Daylight works with existing EDR/SIEM stacks and uses ChatOps-native collaboration, so it can be a useful third reference point in this comparison.