Tesorion vs WithSecure
Tesorion is a Services firm that works with your existing tools. WithSecure is a Platform vendor that requires its own security platform. Tesorion targets Mid-market and Enterprise organizations; WithSecure serves SMB, Mid-market, and Enterprise. Tesorion includes 4 attack surfaces in base pricing (Endpoint, Cloud, Identity, Network), compared to 1 for WithSecure (Endpoint).
Buyer brief
Tesorion is a Services firm that works with your existing tools. WithSecure is a Platform vendor that requires its own security platform. Tesorion targets Mid-market and Enterprise organizations; WithSecure serves SMB, Mid-market, and Enterprise. Tesorion includes 4 attack surfaces in base pricing (Endpoint, Cloud, Identity, Network), compared to 1 for WithSecure (Endpoint).
WithSecure is the choice if you want a single-vendor stack with deep integration. Tesorion is better if you have existing tools and want flexibility.
At a glance
| FIELD |  |  |
|---|---|---|
| Best fit | Dutch organisations that want MDR from a Netherlands-based cybersecurity services firm | European mid-market organizations prioritizing EU data residency, GDPR, NIS2, and DORA compliance |
| Price | Custom quote | Custom quote |
| Response authority | 1/6 actions · Configurable | 5/6 actions · Configurable |
| Stack | Works with existing stack | Requires own platform |
| Data access | Reports only | Full query access |
| Warranty | None listed | None listed |
- Best fit
- Dutch organisations that want MDR from a Netherlands-based cybersecurity services firm
- Price
- Custom quote
- Response authority
- 1/6 actions · Configurable
- Stack
- Works with existing stack
- Data access
- Reports only
- Warranty
- None listed
- Best fit
- European mid-market organizations prioritizing EU data residency, GDPR, NIS2, and DORA compliance
- Price
- Custom quote
- Response authority
- 5/6 actions · Configurable
- Stack
- Requires own platform
- Data access
- Full query access
- Warranty
- None listed
›› Detailed comparison
| FIELD | TesorionTECH-AGNOSTIC | WithSecurePLATFORM |
|---|---|---|
| ›› Fit | ||
| Target size | Mid-market, Enterprise | SMB, Mid-market, Enterprise |
| Sentiment | Mixed | Positive |
| ›› Your stack | ||
| Approach | Works with your tools | Requires their platform |
| EDR integrations | SentinelOneCustomer endpoint telemetry | WithSecure Elements EDR (required for MDR service) |
| SIEM integrations | None listed | Microsoft Sentinel (native Azure Marketplace connector)Any SIEM via Elements Connector (Syslog forwarding) |
| Coverage | EPEndpoint: CoveredCloudCloud: CoveredIDIdentity: CoveredSaaSSaaS: LimitedNetNetwork: CoveredOTOT/IoT: Optional add-on | EPEndpoint: CoveredCloudCloud: Optional add-onIDIdentity: Optional add-onSaaSSaaS: Optional add-onNetNetwork: Optional add-onOTOT/IoT: Not covered |
| ›› Response | ||
| Response type | Active Remediation | Active Remediation |
| Approval policy | Configurable | Configurable |
| Response actions | Custom playbooks | IsolateKill processContainDisable accountsQuarantine |
| IR included | Separate | ✓ Included |
| ›› Cost | ||
| Price range | Not published | Not publicly disclosed. Custom quotes required. Described as 'competitively priced for mid-sized businesses.' ITPro rated pricing 5/5 stars. |
| Minimum seats | None | None |
| Breach warranty | – | – |
| ›› More details | ||
| Requires own agent | No | Yes |
| Endpoints | ✓ Included | ✓ Included |
| Cloud workloads | ✓ Included | + Optional |
| Identity | ✓ Included | + Optional |
| SaaS apps | ~ Limited | + Optional |
| Network | ✓ Included | + Optional |
| OT/ICS | + Optional | Not offered |
| Threat hunting | ✓ Included | ✓ Included |
| Response SLA | Not disclosed | Not disclosed |
| 24/7 coverage | ✓ | ✓ |
| Pricing model | Custom quote. Tesorion does not publish MDR package pricing. | Per-endpoint/per-device/per-user subscription. Monthly or annual billing options. |
| Hidden cost warnings | Public pages do not publish response SLAs or named default response actions.. The public MDR page says mitigation is immediate where possible, but does not specify what Tesorion can do without customer approval.. T-CERT incident response is prominent, but buyers should confirm whether IR hours are included in MDR or sold separately.. Tesorion lists broad coverage across domains, so buyers should confirm which monitored sources are included in base MDR. | Platform lock-in: requires WithSecure Elements EDR, cannot use competing EDR. Modular pricing: full coverage across identity, cloud, SaaS, and exposure management adds cost beyond base MDR. Ownership transition: being taken private by CVC/Siilasmaa, managed services ARR declined 22% in H1 2025 |
| Data portability | Partial | Partial |
| Contract terms | Custom | Annual, Multi-year |
| Channels | EmailPhone | PortalEmailPhone |
| Data access | Reports only | Full query access |
| Dedicated analyst | – | ✓ |
| SOC regions | Europe | Europe |
| Onboarding | Tesorion says MDR use cases are tailored per organisation and linked to mitigating measures. No standard public onboarding duration was found. | Not publicly disclosed. Requires Elements EDR deployment first, then MDR subscription activated in Elements Security Center. |
| Industry focus | Financial ServicesHealthcarePublic SectorManufacturingCritical InfrastructureTechnologyProfessional Services | Financial ServicesManufacturingHealthcareGovernmentEducationTechnology |
| MTTD | Not published | Not published |
| MTTR | Not published | Not published. Marketing states 'reaction in minutes, containment within hours.' PeerSpot reviewer reported ~4 minute average alert response (anecdotal). |
| Community view | Tesorion has limited MDR-specific public review volume. The public buyer case rests on Dutch delivery, T-SOC operations, XDR and SOAR correlation, threat intelligence and nearby T-CERT incident response. Buyers should validate pricing, response authority, included source scope and whether T-CERT support is included before signing. | PeerSpot 8.0/10 with 100% recommend rate and growing mindshare (0.3% to 1.0% YoY). Gartner Peer Insights 4.5/5 across 144 reviews (all products). Forrester Strong Performer in MDR Europe Q3 2025. Being taken private by CVC/Siilasmaa (delisting expected H1 2026). Consulting divested to Neqst May 2025. Managed services ARR declined 22% in H1 2025. |
| Compliance | ISO 27001NEN 7510NIS2DORABIO | ISO 27001ISAE 3000 (SOC 2 Type 2 equivalent)GDPRNIS2DORA |
| Certifications | ISO 27001NEN 7510 | ISO 27001 (cloud-delivered products and managed security services)ISAE 3000 (assurance-based, SOC 2 Type 2 equivalent)CREST-Accredited CSIR TeamNCSC CIR Level 1 (one of only 9 IR teams globally for Category 1-3 incidents)NCSC CIR Level 2 (via CREST)BSI (German Federal Office for Information Security) Assured IR TeamForrester Strong Performer MDR Europe Q3 2025Gartner Magic Quadrant for Endpoint Protection Platforms 2024AV-TEST Approved Advanced EDR 2024MITRE ATT&CK Evaluations Enterprise 2024 Participant |
| Founded | 2018 | 1988 |
| Data retention | Not published as a standard MDR retention period. | 13-14 months for security events, varying by event severity. |
| API available | – | ✓ |
| Website | Visit → | Visit → |
›› FAQ
What is the main difference between Tesorion and WithSecure?
Tesorion is a Services firm that is technology-agnostic (works with your existing tools). WithSecure is a Platform vendor that is platform-native (requires their own security stack). Tesorion covers 4 attack surfaces in base pricing vs. 1 for WithSecure.
How do Tesorion and WithSecure differ in response capabilities?
Tesorion supports 1 autonomous actions (custom playbooks) and approval is configurable. WithSecure supports 5 autonomous actions (account disable, endpoint isolation, file quarantine, network containment, process termination) and approval is configurable. Incident response is not included with Tesorion and included with WithSecure.
How does Tesorion pricing compare to WithSecure?
Tesorion pricing: Not published. WithSecure pricing: Not publicly disclosed. Custom quotes required. Described as 'competitively priced for mid-sized businesses.' ITPro rated pricing 5/5 stars.. Watch for with Tesorion: Public pages do not publish response SLAs or named default response actions.; The public MDR page says mitigation is immediate where possible, but does not specify what Tesorion can do without customer approval.. Watch for with WithSecure: Platform lock-in: requires WithSecure Elements EDR, cannot use competing EDR; Modular pricing: full coverage across identity, cloud, SaaS, and exposure management adds cost beyond base MDR.
Should I choose Tesorion or WithSecure?
Choose Tesorion if: dutch organisations that want MDR from a Netherlands-based cybersecurity services firm. Choose WithSecure if: european mid-market organizations prioritizing EU data residency, GDPR, NIS2, and DORA compliance. Tesorion is not ideal for buyers that need public MDR pricing or contractual response SLAs before sales engagement. WithSecure is not ideal for organizations committed to multi-vendor or BYO-EDR strategies (requires WithSecure agent).
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.