Question 1

Who are the top Microsoft 365 Defender competitors?

Accepted Answer

Microsoft 365 Defender’s Top competitors in the unified-threat-management category are Proofpoint Insider Threat Management, FortiGate Cloud, Fortinet FortiAnalyzer. You can view a full list of Microsoft 365 Defender competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Microsoft 365 Defender and 40,000 other technologies on the internet. You can also compare Microsoft 365 Defender and its feature with top competitors here : Microsoft 365 Defender vs Proofpoint Insider Threat Management Microsoft 365 Defender vs FortiGate Cloud Microsoft 365 Defender vs Fortinet FortiAnalyzer.

Question 2

What is Microsoft 365 Defender customer distribution based on
            company size?

Accepted Answer

The majority of Microsoft 365 Defender’s customers for the unified-threat-management category fall in the company size of 1,000 - 4,999 employees (459 companies). You can view a distribution chart of Microsoft 365 Defender customers by company size here.

Question 3

What is Microsoft 365 Defender market share in the
            unified-threat-management?

Accepted Answer

Microsoft 365 Defender has market share of
            6.35%
            in unified-threat-management market.
            Microsoft 365 Defender competes
            with 27 competitor tools in
            unified-threat-management category. The top alternatives for
            Microsoft 365 Defender unified-threat-management tool are
            Proofpoint Insider Threat Management with
                59.32%, FortiGate Cloud with
                10.73%, Fortinet FortiAnalyzer with
                5.68% market share.

Question 4

What are the top countries that use Microsoft 365 Defender?

Accepted Answer

Around the world in 2025, over
          2,251 companies
          have started using Microsoft 365 Defender as
          unified-threat-management tool. Companies using
          Microsoft 365 Defender for unified-threat-management are majorly
          from United States with
          893 customers.
          51.74% of Microsoft 365 Defender
          customers are from the United States. Other top countries
          using Microsoft 365 Defender are
          United Kingdom and Canada with 231(13.38%) and 155(8.98%) customers respectively.

Question 5

What are the top industries that use Microsoft 365 Defender?

Accepted Answer

Top industries that use Microsoft 365 Defender for
            unified-threat-management are Managed Services (124), Cloud Services (96), Cybersecurity (94).

Technology	Domains	Market Share (Est.)	Versus page
Proofpoint Insider Threat Management	21039	59.32%	Microsoft 365 Defender vs Proofpoint Insider Threat Management
FortiGate Cloud	3806	10.73%	Microsoft 365 Defender vs FortiGate Cloud
Fortinet FortiAnalyzer	2013	5.68%	Microsoft 365 Defender vs Fortinet FortiAnalyzer
Kerio	1425	4.02%	Microsoft 365 Defender vs Kerio
IBM QRadar SIEM	1270	3.58%	Microsoft 365 Defender vs IBM QRadar SIEM
Sophos Unified Threat Management	905	2.55%	Microsoft 365 Defender vs Sophos Unified Threat Management
InsightVM	625	1.76%	Microsoft 365 Defender vs InsightVM
IBM Security MaaS360	534	1.51%	Microsoft 365 Defender vs IBM Security MaaS360
Vyatta	453	1.28%	Microsoft 365 Defender vs Vyatta
Symantec Advanced Threat Protection	251	0.71%	Microsoft 365 Defender vs Symantec Advanced Threat Protection
Cisco TrustSec	171	0.48%	Microsoft 365 Defender vs Cisco TrustSec
Cisco Tetration	151	0.43%	Microsoft 365 Defender vs Cisco Tetration
AlienVault Unified Security Management	136	0.38%	Microsoft 365 Defender vs AlienVault Unified Security Management
Cisco Threat Grid	94	0.27%	Microsoft 365 Defender vs Cisco Threat Grid
Damballa	64	0.18%	Microsoft 365 Defender vs Damballa
WatchGuard Unified Threat Management	59	0.17%	Microsoft 365 Defender vs WatchGuard Unified Threat Management
Cyware	52	0.15%	Microsoft 365 Defender vs Cyware
ThreatQuotient	47	0.13%	Microsoft 365 Defender vs ThreatQuotient
NopSec Unified VRM	34	0.10%	Microsoft 365 Defender vs NopSec Unified VRM
Silobreaker	20	0.06%	Microsoft 365 Defender vs Silobreaker

Customers	Employee Range	City	Region	Country
Microsoft	10,000+	Redmond	Washington	United States
QueerTech	20 - 49	Montreal	Quebec	Canada
Beacon Hill	1,000 - 4,999	Munich	Bavaria	Germany
RELYzIT	0 - 9	Brussels	Brussels Capital	Belgium
Saint Leo University	1,000 - 4,999	Saint Leo	Florida	United States
Capgemini	10,000+	Paris	Ile-de-France	France
AXA XL	10,000+	Stamford	Connecticut	United States
Eastvantage	1,000 - 4,999	Manila	Metro Manila	Philippines
GuidePoint Security	1,000 - 4,999	Herndon	Virginia	United States
Logicalis	5,000 - 9,999	Maidenhead	England	United Kingdom

Microsoft 365 Defender

Market Share of Microsoft 365 Defender

2252

6.35%

#3

Top Competitors and Alternatives of Microsoft 365 Defender

Top Competitors and Alternatives of Microsoft 365 Defender

Customers of Microsoft 365 Defender

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Microsoft 365 Defender Customers by Products and Services

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Microsoft 365 Defender Customers by Employee Size

Microsoft 365 Defender Customers by Geography

Employees of Microsoft 365 Defender

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