Microsoft Defender for Business Alternatives (2026)

Microsoft
Microsoft Defender for Business
7.8/10 MSP Compared score 4.4★ · 300 reviews G2
From $3/user/mo
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Starting price
$3/user/mo
Free trial
Free trial
Deployment
Cloud
Best for
SMBs already on Microsoft 365 wanting bundled EDR

Our verdict

The top alternatives to Microsoft Defender for Business are SentinelOne Singularity, CrowdStrike Falcon, ThreatLocker. SentinelOne Singularity is the closest like-for-like option (4.7/5 (~2k G2 reviews), from $69.99/endpoint/yr). People typically switch from Microsoft Defender for Business over pricing model, complexity, or a missing capability — the table compares each alternative on exactly those axes.

  1. SentinelOne Singularity

    ★ Editor's Choice
    8.4/10 4.7★ · 2k reviewsper G2

    Best for Teams wanting autonomous AI-driven EDR/XDR.

    • Autonomous AI detection
    • Storyline attack visualization
    • EDR/XDR
    Free trial Free version
  2. CrowdStrike Falcon

    8.3/10 4.7★ · 290 reviewsper G2

    Best for Organizations wanting best-in-class cloud-native EDR + threat intel.

    • Cloud-native NGAV
    • EDR/XDR
    • Threat intelligence
    Free trial Free version
  3. ThreatLocker

    8.2/10 4.8★ · 250 reviewsper G2

    Best for MSPs wanting Zero Trust allowlisting and ringfencing.

    • Application allowlisting
    • Ringfencing
    • Storage control
    Free trial Free version
  4. Bitdefender GravityZone

    8.1/10 4.6★ · 400 reviewsper G2

    Best for SMBs and MSPs wanting strong protection at a fair price.

    • Top-rated AV engine
    • EDR/XDR options
    • Risk analytics
    Free trial Free version
  5. Sophos Intercept X

    8.0/10 4.6★ · 350 reviewsper G2

    Best for SMBs/MSPs wanting strong EDR plus optional MDR from one vendor.

    • Deep-learning AV
    • EDR/XDR
    • Anti-ransomware (CryptoGuard)
    Free trial Free version
  6. ESET PROTECT

    7.9/10 4.6★ · 800 reviewsper G2

    Best for Teams wanting lightweight, reliable endpoint protection.

    • Lightweight AV
    • EDR (Inspect)
    • Full-disk encryption
    Free trial Free version
  7. Malwarebytes ThreatDown

    7.8/10 4.6★ · 900 reviewsper G2

    Best for SMBs/MSPs wanting simple, effective EDR with optional MDR.

    • Strong remediation engine
    • EDR + ransomware rollback
    • Simple console
    Free trial Free version

More alternatives detail

Teams usually move off Microsoft Defender for Business for one of three reasons: pricing model, complexity, or a missing capability. The closest like-for-like options on the data we track are SentinelOne Singularity, CrowdStrike Falcon, Bitdefender GravityZone.

Frequently asked questions

What is the best alternative to Microsoft Defender for Business?
SentinelOne Singularity is the top-rated alternative in our data-weighted ranking (from $69.99/endpoint/yr).
Why do people switch from Microsoft Defender for Business?
Usually pricing model, complexity, or a missing capability. The table compares each alternative on exactly those axes.
Data as of June 1, 2026. Sources: microsoft.com. Figures are pulled from public vendor and security data and refreshed automatically.