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 (198 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
            3.27%
            in unified-threat-management market.
            Microsoft 365 Defender competes
            with 26 competitor tools in
            unified-threat-management category. The top alternatives for
            Microsoft 365 Defender unified-threat-management tool are
            Proofpoint Insider Threat Management with
                78.28%, FortiGate Cloud with
                4.41%, Fortinet FortiAnalyzer with
                2.96% market share.

Question 4

What are the top countries that use Microsoft 365 Defender?

Accepted Answer

Around the world in 2025, over
          949 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
          389 customers.
          53.14% of Microsoft 365 Defender
          customers are from the United States. Other top countries
          using Microsoft 365 Defender are
          United Kingdom and Canada with 107(14.62%) and 66(9.02%) 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 (49), Cybersecurity (46), Cloud Services (40).

Technology	Domains	Market Share (Est.)	Versus page
Proofpoint Insider Threat Management	22744	78.28%	Microsoft 365 Defender vs Proofpoint Insider Threat Management
FortiGate Cloud	1282	4.41%	Microsoft 365 Defender vs FortiGate Cloud
Fortinet FortiAnalyzer	861	2.96%	Microsoft 365 Defender vs Fortinet FortiAnalyzer
IBM QRadar SIEM	730	2.51%	Microsoft 365 Defender vs IBM QRadar SIEM
Kerio	700	2.41%	Microsoft 365 Defender vs Kerio
Sophos Unified Threat Management	443	1.52%	Microsoft 365 Defender vs Sophos Unified Threat Management
InsightVM	285	0.98%	Microsoft 365 Defender vs InsightVM
IBM Security MaaS360	240	0.83%	Microsoft 365 Defender vs IBM Security MaaS360
Vyatta	239	0.82%	Microsoft 365 Defender vs Vyatta
Symantec Advanced Threat Protection	116	0.40%	Microsoft 365 Defender vs Symantec Advanced Threat Protection
AlienVault Unified Security Management	75	0.26%	Microsoft 365 Defender vs AlienVault Unified Security Management
Cisco Tetration	69	0.24%	Microsoft 365 Defender vs Cisco Tetration
Cisco TrustSec	60	0.21%	Microsoft 365 Defender vs Cisco TrustSec
Damballa	46	0.16%	Microsoft 365 Defender vs Damballa
Cisco Threat Grid	45	0.15%	Microsoft 365 Defender vs Cisco Threat Grid
NopSec Unified VRM	37	0.13%	Microsoft 365 Defender vs NopSec Unified VRM
ThreatQuotient	32	0.11%	Microsoft 365 Defender vs ThreatQuotient
Cyware	28	0.10%	Microsoft 365 Defender vs Cyware
WatchGuard Unified Threat Management	27	0.09%	Microsoft 365 Defender vs WatchGuard Unified Threat Management
McAfee NitroSecurity	12	0.04%	Microsoft 365 Defender vs McAfee NitroSecurity

Customers	Employee Range	City	Region	Country
Endava	10,000+	London	England	United Kingdom
Dow	10,000+	Midland	Michigan	United States
NXP Semiconductors	10,000+	Eindhoven	North Brabant	Netherlands
ECCO	10,000+	Tonder	South Denmark	Denmark
Sulzer	10,000+	Winterthur	Zurich	Switzerland
Bridgewater State University	10,000+	Bridgewater	Massachusetts	United States
Hexaware Technologies	10,000+	Navi Mumbai	Maharashtra	India
Coforge	10,000+	Noida	Uttar Pradesh	India
Desjardins	10,000+	Montreal	Quebec	Canada
OhioHealth	10,000+	Columbus	Ohio	United States

Microsoft 365 Defender

Market Share of Microsoft 365 Defender

949

3.27%

#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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