List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Cambio Group, Colliers-International and Simeio. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$98M
$25M - $50M
725
$10M - $25M
725
$250M - $500M
725
$100M - $250M
724
$250M - $500M
723
$250M - $500M
723
$10M - $25M
723
$250M - $500M
723
$100M - $250M
723
$10M - $25M
723
$100M - $250M
722
$10M - $25M
722
$500M - $1B
722
$250M - $500M
722
$5.6M
$250M - $500M
721
$1B - $10B
721
$4.5M
$1B - $10B
721
$500M - $1B
721
$1M - $10M
719
$500M - $1B
719
$10M - $25M
719
$100M - $250M
719
$10B+
719
$1B - $10B
719
$818M
$100M - $250M
719
$250M - $500M
718
$500M - $1B
718
$10M - $25M
716
$250M - $500M
716
$500M - $1B
716
<$1M
716
$100M - $250M
716
$50M - $100M
716
$100M - $250M
715
$1.9B
$500M - $1B
715
$900M
$500M - $1B
715
$50M - $100M
714
$335M
$100M - $250M
714
$500M - $1B
714
$100M - $250M
713
$800M
$1B - $10B
712
$100M - $250M
712
$250M - $500M
712
$500M - $1B
711
$500M - $1B
711
$500M - $1B
709
$122M
$100M - $250M
709
$500M - $1B
709
$1M - $10M
709
$50M - $100M
709
$1B - $10B
709
$100M - $250M
709
$50M - $100M
708
$1M - $10M
708
$50M - $100M
708
$1M - $10M
707
$50M - $100M
707
$89K
$25M - $50M
707
$80M
$1B - $10B
705
$500M - $1B
705
$1B - $10B
705
$500M - $1B
704
$100M - $250M
704
$10M - $25M
704
$250M - $500M
703
$13M
$1B - $10B
701
$1M - $10M
701
$10M - $25M
701
$100M - $250M
700
$50M - $100M
700
$250M - $500M
700
$9.7M
$100M - $250M
700
$50M - $100M
700
$250M - $500M
699
$146M
$250M - $500M
698
$500M - $1B
698
$25M - $50M
698
$100M - $250M
698
$50M - $100M
697
$250M - $500M
695
$1B - $10B
695
$50M - $100M
695
$100M - $250M
695
$250M - $500M
694
$1M - $10M
694
$27M
$100M - $250M
694
$250M - $500M
693
$100M - $250M
693
$100M - $250M
692
$18M
$100M - $250M
692
$250M - $500M
692
$50M - $100M
690
$1M - $10M
690
$100M - $250M
689
$50M - $100M
689
$150M
$50M - $100M
688
$100M - $250M
688
$25M - $50M
688
$1B+
687
$500M - $1B
687
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 Cambio Group, Colliers-International and Simeio.
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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