List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Integration Innovation, Inc., Microsoft AI Skills and NYC Law Department. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$9.7M
$100M - $250M
686
$50M - $100M
686
$100M - $250M
686
$500M
$1B - $10B
686
$1.5B
$250M - $500M
686
$10M - $25M
686
$2.5M
$1M - $10M
686
$500M - $1B
685
$100M - $250M
685
$50M - $100M
685
$250M - $500M
684
$50M - $100M
684
$25M - $50M
682
$1B - $10B
682
$10M - $25M
682
$250M - $500M
681
$1B - $10B
681
$500M - $1B
681
$791K
$100M - $250M
680
$50M - $100M
679
$25M - $50M
679
$250M - $500M
678
$500M - $1B
678
$250M - $500M
676
$100M - $250M
676
$500M - $1B
675
$10B
$500M - $1B
675
$50M - $100M
675
$593M
$25M - $50M
673
$50M - $100M
673
$500M - $1B
673
$17M
$10M - $25M
672
$100M - $250M
671
$250M - $500M
671
$100M - $250M
671
$500M - $1B
670
$500M - $1B
669
$10M - $25M
669
$250M - $500M
669
$353M
$500M - $1B
669
$100M - $250M
668
$500M - $1B
668
$250M - $500M
668
$50M - $100M
667
$100M - $250M
667
$100M - $250M
666
$250M - $500M
665
$100M
$250M - $500M
665
$250M - $500M
665
$100M - $250M
665
$250M - $500M
664
$100M - $250M
663
$80M
$500M - $1B
663
$100M - $250M
663
$25M - $50M
662
$250M - $500M
661
$250M - $500M
661
$10M - $25M
661
$250M - $500M
660
$169M
$25M - $50M
660
$250M - $500M
659
$1.3B
$250M - $500M
658
$250M - $500M
658
$1B - $10B
658
$25M - $50M
657
$50M - $100M
657
$1B - $10B
657
$1M - $10M
657
$100M - $250M
656
$50M - $100M
656
$100M - $250M
656
$250M - $500M
656
$500M - $1B
655
$500M - $1B
655
$25M - $50M
654
$10M - $25M
654
$10B+
654
$10M - $25M
654
$10B+
654
$250M - $500M
653
$500M - $1B
653
$1B - $10B
653
$168M
$250M - $500M
651
$100M - $250M
651
$500M - $1B
650
$100M - $250M
650
$100M - $250M
650
$100M - $250M
650
$500M - $1B
649
$85K
$100M - $250M
648
$10M - $25M
647
$1B - $10B
647
$25M - $50M
647
$10M - $25M
647
$25M - $50M
646
$250M - $500M
646
$500M - $1B
646
$25M - $50M
645
$100M - $250M
645
$78M
$500M - $1B
645
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 Integration Innovation, Inc., Microsoft AI Skills and NYC Law Department.
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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