List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Dash Technologies Inc., DuPont Water Solutions and IREN. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$500M - $1B
558
$250M - $500M
558
$10B
$50M - $100M
558
$50M - $100M
558
$100M - $250M
558
$1B - $10B
558
$50M - $100M
558
$1B - $10B
558
$25M - $50M
557
$25M - $50M
557
$25M - $50M
557
$500M - $1B
556
$100M - $250M
556
$144M
$50M - $100M
555
$100M - $250M
555
$100M - $250M
555
$50M - $100M
555
$11M
$100M - $250M
554
$250M - $500M
554
$100M - $250M
554
$250M - $500M
553
$250M - $500M
553
$50M - $100M
553
$25M - $50M
553
$500M - $1B
553
$100M - $250M
552
$100M - $250M
552
$1M - $10M
551
$723M
$100M - $250M
550
$1B - $10B
550
$100M - $250M
550
$10M - $25M
548
$50M - $100M
548
$500M - $1B
548
$250M - $500M
548
$104M
$1M - $10M
546
$50M - $100M
545
$25M - $50M
544
$665M
$100M - $250M
544
$1B - $10B
543
$1M - $10M
543
$100M - $250M
543
$500M - $1B
542
$100M - $250M
542
$25M - $50M
542
$50M - $100M
541
$250M - $500M
541
$10M - $25M
541
$50M - $100M
540
$202M
$100M - $250M
540
$25M - $50M
540
$25M - $50M
540
$10M - $25M
538
$10M - $25M
538
$250M - $500M
537
$1B - $10B
537
$100M - $250M
537
$250M - $500M
537
$25M - $50M
535
$10M - $25M
535
$10M - $25M
535
$500M - $1B
534
$80M
$100M - $250M
534
$1B
$100M - $250M
534
$250M - $500M
534
$250M - $500M
533
$5.7M
$100M - $250M
533
$50M - $100M
533
$1B - $10B
533
$100M - $250M
532
$25M
$250M - $500M
532
$10B+
532
$50M - $100M
531
$100M - $250M
530
$250M - $500M
530
$500M - $1B
530
$250M - $500M
530
$250M - $500M
530
$1B - $10B
529
$50M - $100M
529
$10M - $25M
529
$500M - $1B
528
$1B - $10B
528
$50M - $100M
528
$25M - $50M
528
$25M - $50M
527
$50M - $100M
527
$100M - $250M
526
$500M - $1B
526
$100M - $250M
525
$100M - $250M
525
$100M - $250M
525
$10M - $25M
523
$25M - $50M
523
$7M
$500M - $1B
523
$500M - $1B
523
$50M - $100M
522
$90M
$250M - $500M
522
$26M
$250M - $500M
522
$500M - $1B
522
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 Dash Technologies Inc., DuPont Water Solutions and IREN.
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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