Microsoft Defender for Business comparisons
Microsoft Defender for Business is compared head-to-head with Bitdefender GravityZone Small Business Security, Bitdefender Total Security and ESET HOME Security and more: 7 head-to-heads in Antivirus Software, each with the specs and prices we checked.
Microsoft Defender for Business head-to-head
- Microsoft Defender for Business vs Bitdefender GravityZone Small Business Security
- Microsoft Defender for Business vs Bitdefender Total Security
- Microsoft Defender for Business vs ESET HOME Security
- Microsoft Defender for Business vs FortiClient
- Microsoft Defender for Business vs Kaspersky Plus Internet Security
- Microsoft Defender for Business vs Kaspersky Antivirus
- Microsoft Defender for Business vs Avast One
Microsoft Defender for Business vs each of them
| # | Tool | Free plan | Paid from | Protection scope | Device limit | Supported platforms | Ransomware protection | Score |
|---|---|---|---|---|---|---|---|---|
| 1 | Microsoft Defender for Business | No | $3/user/mo | Complete security | 5 devices | Windows, macOS, iOS, Android | Yes | 9.4 |
| 2 | Bitdefender GravityZone Small Business Security | No | Complete security | 100 devices | Windows, Linux, macOS | Yes | 9.3 | |
| 3 | Bitdefender Total Security | No | $59.99/device/yr | Complete security | 25 devices | Windows, macOS, Android, iOS | Yes | 9.2 |
| 4 | ESET HOME Security | No | Complete security | 15 devices | Windows, macOS, Android | Yes | 9.0 | |
| 5 | FortiClient | No | Complete security | Windows, macOS, Linux, iOS, Android | Yes | 8.9 | ||
| 6 | Kaspersky Plus Internet Security | No | Complete security | 10 devices | Windows, macOS, Linux, Android, iOS | Yes | 8.8 | |
| 7 | Kaspersky Antivirus | $54.99/yr | Complete security | 3 devices | Windows, macOS, Android, iOS, Linux | Yes | 8.7 | |
| 8 | Avast One | Yes | Complete security | 30 devices | Windows, macOS, Android, iOS | Yes | 8.5 |
Compare Microsoft Defender for Business with any antivirus software
These are the matchups our editors wrote up. The compare tool pairs Microsoft Defender for Business with any other product in Antivirus Software — and up to four at once — from the same checked specs.
Compare Microsoft Defender for Business with any tool side by side →
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Our full Microsoft Defender for Business verdict, pricing and fact sheet →
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Compared by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update