Bridewell vs Thales (S21sec)
Bridewell is a Microsoft-ecosystem that works with your existing tools. Thales (S21sec) is a Services firm that works with your existing tools. Bridewell targets Mid-market and Enterprise organizations; Thales (S21sec) serves Enterprise. Bridewell includes 5 attack surfaces in base pricing (Endpoint, Cloud, SaaS, Identity, Network), compared to 2 for Thales (S21sec) (Network, OT/ICS).
Buyer brief
Bridewell is a Microsoft-ecosystem that works with your existing tools. Thales (S21sec) is a Services firm that works with your existing tools. Bridewell targets Mid-market and Enterprise organizations; Thales (S21sec) serves Enterprise. Bridewell includes 5 attack surfaces in base pricing (Endpoint, Cloud, SaaS, Identity, Network), compared to 2 for Thales (S21sec) (Network, OT/ICS).
Bridewell (Microsoft-ecosystem) and Thales (S21sec) (Services firm) serve different buyer profiles. Your decision depends on whether you prioritize Bridewell's strong choice for uk/eu critical national infrastructure needing microsoft-native mdr with ncsc/c... or Thales (S21sec)'s thales/s21sec is strongest for complex, regulated and critical-sector environments that value glo....
At a glance
| FIELD |  |  |
|---|---|---|
| Best fit | Organizations with Microsoft 365 and Azure footprints wanting native Sentinel/Defender XDR managed services | Critical infrastructure and public-sector buyers that need Thales/S21sec regional cyber detection and response |
| Price | Not published | Custom quote |
| Response authority | 4/6 actions · Configurable | 2/6 actions · Configurable |
| Stack | Works with existing stack | Works with existing stack |
| Data access | Full query access | Reports only |
| Warranty | None listed | None listed |
- Best fit
- Organizations with Microsoft 365 and Azure footprints wanting native Sentinel/Defender XDR managed services
- Price
- Not published
- Response authority
- 4/6 actions · Configurable
- Stack
- Works with existing stack
- Data access
- Full query access
- 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 | BridewellTECH-AGNOSTIC | Thales (S21sec)TECH-AGNOSTIC |
|---|---|---|
| Fit | ||
| Target size | Mid-market, Enterprise | Enterprise |
| Sentiment | Positive | Mixed |
| Your stack | ||
| Approach | Works with your tools | Works with your tools |
| EDR integrations | Microsoft Defender for EndpointCustomer choice of EDR (integrated via Sentinel) | Customer endpoint security tools |
| SIEM integrations | Microsoft Sentinel | Customer SIEM platformsThales SOC tooling |
| Coverage | EPEndpoint: CoveredCloudCloud: CoveredIDIdentity: CoveredSaaSSaaS: CoveredNetNetwork: 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 | IsolateContainDisable accountsCustom 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 | ✓ Included | ~ Limited |
| Network | ✓ Included | ✓ Included |
| OT/ICS | + Optional | ✓ Included |
| Threat hunting | ✓ Included | ✓ Included |
| Response SLA | Not disclosed | Not disclosed |
| 24/7 coverage | ✓ | ✓ |
| Pricing model | Custom pricing based on environment size, coverage areas, and Microsoft licensing footprint. Offered via Azure Marketplace as managed service. Pricing model not publicly disclosed. | Custom quote for Thales Cyber Detection and Response, Managed Security Services, SOC and MDR. Public prices are not published. |
| Hidden cost warnings | Incident response is NOT included in base MDR, it is a separate 24/7 service. Requires Microsoft Sentinel and Defender XDR licensing (customer cost). OT/ICS coverage requires specialist engagement beyond standard MDR. UK/Europe focus, US expansion underway but limited North American SOC presence historically. I-Tracing merger (May 2025) introduces integration risks during transition period | 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 | Full | Partial |
| Contract terms | Annual, Multi-year | Custom cyber detection and response engagement, Managed Security Services, SOC and MDR, Critical-infrastructure cybersecurity services |
| Channels | EmailPortalPhone | EmailPhonePortal |
| Data access | Full query access | Reports only |
| Dedicated analyst | – | – |
| SOC regions | EuropeNorth America | EuropeMEAAPAC |
| Onboarding | Less than a week for MDR capabilities deployment | Not published. Thales describes customer-centric service roadmaps and selecting/deploying detection and response technologies, but no standard MDR onboarding timeline. |
| Industry focus | EnergyUtilitiesTransportAviationGovernmentFinancial ServicesCritical National Infrastructure (CNI) | Critical InfrastructureGovernmentDefenseEnergyManufacturingAviationSpaceFinancial ServicesTelecommunicationsHealthcareTransportationAutomotiveUtilitiesMaritime |
| MTTD | Not published | Not published |
| MTTR | Not published | Not published |
| Community view | Limited public reviews due to CNI/government client base where testimonials are restricted. Published case studies from Northern Gas Networks and Manchester Airport Group praise technical depth and organized delivery. No G2/Gartner Peer Insights presence and zero Reddit mentions suggest limited visibility outside UK CNI and public sector markets. Hard to assess independently. | 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 27001ISO 27701ISO 9001ISO 22301Cyber Essentials PlusCREST SOCCREST CSIRNCSC AssuredISA/IEC 62443GDPRPCI DSS | DORATIBER-EUPCI DSSEASA Part-ISEASAICAOUNECE |
| Certifications | ISO 27001ISO 27701ISO 9001ISO 22301Cyber Essentials PlusCREST SOC (SOC accreditation)CREST CSIR (Cyber Security Incident Response)CREST Intelligence-led Penetration TestingCREST Penetration TestingCREST Vulnerability AssessmentCREST Incident ExercisingNCSC CHECK (penetration testing)NCSC CIR (Cyber Incident Response, Standard Level)NCSC CIE (Cyber Incident Exercising)NCSC Cyber Resilience AuditNCSC Risk Management ConsultancyNCSC Audit and ReviewNCSC Security Architecture ConsultancyMicrosoft Solutions Partner for Security (Cloud Security and Threat Protection specialisms)Microsoft Verified Managed XDR Solution | 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 | 2013 | – |
| Data retention | Not publicly disclosed. Determined by customer's own Microsoft Sentinel workspace retention settings and contract terms. | 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 Bridewell and Thales (S21sec)?
Bridewell is a Microsoft-ecosystem that is technology-agnostic (works with your existing tools). Thales (S21sec) is a Services firm that is technology-agnostic (works with your existing tools). Bridewell covers 5 attack surfaces in base pricing vs. 2 for Thales (S21sec).
How do Bridewell and Thales (S21sec) differ in response capabilities?
Bridewell supports 4 autonomous actions (account disable, 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 Bridewell and included with Thales (S21sec).
How does Bridewell pricing compare to Thales (S21sec)?
Bridewell pricing: Custom-quoted pricing. Thales (S21sec) pricing: Not published. Watch for with Bridewell: Incident response is NOT included in base MDR, it is a separate 24/7 service; Requires Microsoft Sentinel and Defender XDR licensing (customer cost). 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 Bridewell or Thales (S21sec)?
Choose Bridewell if: uK and European Critical National Infrastructure organizations (energy, transport, utilities, government) needing NCSC/CREST-assured MDR. Choose Thales (S21sec) if: critical infrastructure and public-sector buyers that need Thales/S21sec regional cyber detection and response. Bridewell is not ideal for organizations requiring multi-vendor, platform-agnostic MDR beyond the Microsoft ecosystem. 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.