List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including CHDI Foundation, DCA - Database Consultants Australia and Defendable. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$25M - $50M
101
$10M - $25M
101
$1M - $10M
101
$1M - $10M
101
$50M - $100M
101
$1M - $10M
101
$50M - $100M
101
$100M - $250M
101
$10M - $25M
101
$1M - $10M
101
$10M - $25M
101
$50M - $100M
101
$127M
$25M - $50M
100
$1M - $10M
100
$1M - $10M
100
$100M - $250M
100
$50M - $100M
100
$50M - $100M
100
$50M - $100M
100
$100M - $250M
100
$100M - $250M
100
$10M - $25M
100
$10M - $25M
100
$100M - $250M
100
$1M - $10M
100
$50M - $100M
100
$25M - $50M
100
$100M - $250M
100
$50M - $100M
99
$25M - $50M
99
$50M - $100M
99
$10M - $25M
99
$10M - $25M
99
$6.5M
$50M - $100M
99
$6.6M
$10M - $25M
99
$50M - $100M
99
$250M - $500M
99
$1M - $10M
99
$50M - $100M
99
$10M - $25M
98
$50M - $100M
98
$34M
$50M - $100M
98
$25M - $50M
98
$1B - $10B
98
$12M
$10M - $25M
98
$50M - $100M
98
$50M - $100M
98
$25M - $50M
98
$25M - $50M
98
$10M - $25M
98
$10M - $25M
98
$50M
$100M - $250M
98
$50M - $100M
98
$10M - $25M
98
$5.1M
$25M - $50M
98
$10M - $25M
98
$100M - $250M
97
$250M - $500M
97
$50M - $100M
97
$188M
$250M - $500M
97
$1M - $10M
97
$10M - $25M
97
$10M - $25M
97
$1M - $10M
97
$100M - $250M
97
$1M - $10M
97
$165M
$100M - $250M
97
$100M - $250M
97
$50M - $100M
97
$25M - $50M
97
$50M - $100M
97
$10M - $25M
97
$50M - $100M
96
$25M - $50M
96
$100M - $250M
96
$10M - $25M
96
$50M - $100M
96
$500M - $1B
96
$25M - $50M
96
$1M - $10M
96
$250M - $500M
96
$86M
$50M - $100M
96
$53M
$50M - $100M
96
$100M - $250M
96
$50M - $100M
96
<$1M
96
$50M - $100M
96
$50M - $100M
96
$100M - $250M
95
$10M - $25M
95
$50M - $100M
95
$10M - $25M
95
$50M - $100M
95
$50M - $100M
95
$10M - $25M
95
$25M - $50M
95
$25M - $50M
95
$25M - $50M
95
$50M - $100M
95
$128M
$50M - $100M
95
About companies using Microsoft Defender
Why target companies using Microsoft Defender?
Microsoft Defender is a Security, identity & compliance technology. Companies running these tools already spend on identity, endpoint, email and consent security, which makes them mature buyers in the category. Companies on the list include CHDI Foundation, DCA - Database Consultants Australia and Defendable.
Which industries use Microsoft Defender the most?
Among companies using Microsoft Defender on LeadIQ, the most common industries are IT Services and IT Consulting, Software Development, Financial Services, Insurance, Higher Education and Hospitals and Health Care. Narrow your list to the industry you sell into from there.
Where are companies using Microsoft Defender located?
Companies using Microsoft Defender are most often headquartered in the United States, the United Kingdom, Canada, Germany, Australia and France.
What other Security, identity & compliance technologies do companies use?
Prospecting the wider Security, identity & compliance space? Related technologies with their own company lists include Microsoft Active Directory, Cisco, Microsoft Entra ID and CookieYes.
How do I reach decision makers at companies using Microsoft Defender?
Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.
Insights based on LeadIQ data refreshed in September 2026.
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Top companies by employee count
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