List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Blue Mantis, Devoteam | Google Cloud Partner and AWB. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$250M - $500M
563
$25M - $50M
563
$250M - $500M
562
$500M - $1B
562
$25M - $50M
562
$245K
$250M - $500M
562
$500M - $1B
562
$50M - $100M
562
$1M - $10M
562
$50M - $100M
560
$1B - $10B
560
$500M - $1B
560
$411M
$500M - $1B
560
$50M - $100M
558
$1M - $10M
558
$100M - $250M
557
$100M - $250M
556
$500M - $1B
556
$1B - $10B
556
$100M - $250M
556
$1B - $10B
556
$25M - $50M
555
$250M - $500M
555
$1B - $10B
554
$250M - $500M
553
$250M - $500M
553
$10B+
553
$25M - $50M
552
$100M - $250M
552
$100M - $250M
552
$25M - $50M
552
$10M - $25M
552
$50M - $100M
552
$100M - $250M
552
$25M - $50M
552
$500M - $1B
551
$50M - $100M
551
$10M - $25M
549
$25M - $50M
549
$50M - $100M
549
$500M - $1B
548
$100M - $250M
548
$25M - $50M
547
$25M - $50M
547
$250M - $500M
547
$100M - $250M
547
$25M - $50M
546
$50M - $100M
546
$50M - $100M
546
$50M - $100M
546
$1B - $10B
545
$50M - $100M
545
$250M - $500M
544
$25M - $50M
544
$1M - $10M
543
$500M - $1B
543
$10M - $25M
543
$144M
$50M - $100M
542
$1B - $10B
542
$100M - $250M
542
$90M
$250M - $500M
541
$1B - $10B
540
$1B - $10B
540
$250M - $500M
540
$500M - $1B
539
$10M - $25M
539
$50M - $100M
539
$1B
$100M - $250M
539
$50M - $100M
539
$25M - $50M
538
$500M - $1B
538
$25M - $50M
538
$25M - $50M
537
$500M - $1B
536
$250M - $500M
536
$10M - $25M
536
$50M - $100M
535
$250M - $500M
535
$1M - $10M
535
$4.6B
$250M - $500M
535
$250M - $500M
535
$100M - $250M
534
$5.7M
$100M - $250M
534
$50M - $100M
534
$10M - $25M
534
$500M - $1B
534
$50M - $100M
533
$250M - $500M
533
$500M - $1B
533
$250M - $500M
533
$10M - $25M
533
$1B - $10B
533
$10M - $25M
533
$50M - $100M
532
$100M - $250M
532
$25M - $50M
531
$10B+
531
$250M - $500M
530
$723M
$100M - $250M
530
$50M - $100M
529
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 Blue Mantis, Devoteam | Google Cloud Partner and AWB.
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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