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KOLOSALTech
Structured comparison · May 2026

SME EDR 2026: Bitdefender vs Sophos vs Defender.

Neutral comparison of the 3 leading SME EDRs. Criteria, pricing, recommendation by profile.

Bitdefender

Bitdefender GravityZone Premium

SMEs 10-500 seats, demanding performance + simplicity

~€75/seat/year excl. tax
+ Strengths
  • ML/heuristic engine among the best on the market (AV-TEST top tier for 5 years)
  • Anti-ransomware with native file rollback
  • Unified cloud console for endpoints + servers + cloud workloads
  • Low CPU/RAM footprint on the workstation
  • EU vendor (Romania) — GDPR native
  • Optional integrated MDR
− Limitations
  • Console offers less rich analytics than Sophos/CrowdStrike for an in-house SOC
  • ANSSI/NIS2 compliance reporting needs manual enrichment
Ideal for

SMEs without an in-house SOC, wanting best-in-class detection + simple UX

Sophos (UK, acquired by Thoma Bravo)

Sophos Intercept X Advanced with XDR

SMEs 20-500 seats, multi-vendor security

~€60/seat/year excl. tax (XDR included)
+ Strengths
  • CryptoGuard anti-ransomware (rollback) + Deep Learning
  • Cross-source XDR (endpoint + firewall + email + cloud)
  • Synchronized Security with Sophos Firewall (auto-isolation)
  • Sophos MDR 24/7 available (English-speaking)
  • Very comprehensive Sophos Central console
− Limitations
  • Slightly higher workstation resource usage
  • Synchronized Security requires Sophos Firewall for the full benefit
  • Premium Sophos MDR pricing
Ideal for

SMEs running Sophos Firewall or looking for turnkey cross-source XDR

Microsoft

Microsoft Defender for Business

SMEs already on M365 (5-300 seats)

Included in M365 Business Premium (~€22/user/month) or ~€3/user/month standalone
+ Strengths
  • Included if M365 Business Premium is already purchased
  • Native AD/Entra/Intune integration
  • Anti-ransomware + EDR with attack surface reduction
  • Console in the unified Microsoft 365 Defender for email/endpoint/identity
  • Free ASR rules + threat & vulnerability management
− Limitations
  • Average detection vs Bitdefender/Sophos (top 5 but not top 1 on AV-TEST)
  • Console UX sometimes slow, multiple Microsoft portals
  • Support during a serious incident: escalation at Microsoft is painful
  • No full Linux endpoint support (Defender for Linux is limited)
Ideal for

SMEs that are 100% Microsoft 365 ecosystem and want to minimize the number of vendors

Detailed comparison table

CriterionBitdefenderSophos Intercept XMS Defender Business
Anti-ransomware with rollbackYes (excellent)CryptoGuardASR + rollback
Deep Learning / AI detectionYesYesYes
Visual EDR investigationYes (Premium)Yes (XDR Hub)Yes (Defender XDR)
Cross-source XDRGravityZone XDR separateIncludedDefender XDR (M365 E5/Premium)
24/7 MDR availableYes (Bitdefender MDR)Yes (Sophos MDR)Defender Experts (premium)
OS compatibilityWin/Mac/Linux/servers/mobileWin/Mac/Linux/servers/mobileWin/Mac/limited Linux/mobile
Workstation CPU/RAM footprintLowMediumLow
Unified SaaS consoleGravityZone CloudSophos CentralMicrosoft 365 Defender
Vendor originRomania (EU)UKUSA
Annual price for 30 seats~€2,250~€1,800Included in M365 Premium or ~€1,080 standalone
Support in FrenchYes (partners)Yes (partners)Microsoft France

Recommendation by profile

Standalone SMEs, without M365 Premium

Bitdefender GravityZone

Best raw detection on the market, simple UX, EU vendor. Ideal without an in-house SOC.

SMEs running Sophos Firewall

Sophos Intercept X with XDR

Synchronized Security = automatic network isolation if an endpoint is compromised. Maximum ROI with a Sophos ecosystem.

100% Microsoft 365 Premium SMEs

MS Defender for Business

Already included in the license. Native AD/Entra/Intune integration. Sufficient for a moderate risk profile.

Free 30-min EDR audit + tailored recommendation.

We review your infrastructure, your exposure, your budget. You leave with the right solution chosen for your constraints.