List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Exactech, InPost UK and Intuitive Machines. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$85M
$100M - $250M
643
$25M - $50M
643
$619M
$50M - $100M
643
$3.5M
$100M - $250M
643
$500M - $1B
642
$1M - $10M
642
$10M - $25M
642
$500M - $1B
641
$500M - $1B
641
$100M - $250M
640
$150K
$500M - $1B
640
$25M - $50M
639
$25M - $50M
639
$163M
$250M - $500M
639
$10B+
639
$500M - $1B
638
$250M - $500M
638
$100M - $250M
638
$500M - $1B
637
$2B
$1M - $10M
637
$250M - $500M
637
$10M - $25M
636
$50M - $100M
636
$25M - $50M
636
$500M - $1B
636
$100M - $250M
635
$50M - $100M
635
$10M - $25M
634
$1M - $10M
634
$50M - $100M
633
$100M - $250M
632
$1M - $10M
632
$1.7B
$500M - $1B
631
$250M - $500M
631
$25M - $50M
630
$50M - $100M
630
$25M - $50M
629
$100M - $250M
629
$320M
$100M - $250M
629
$25M
$250M - $500M
629
$100M - $250M
627
$1M - $10M
627
$500M
$500M - $1B
627
$250M - $500M
627
$50M
$500M - $1B
627
$300M
$10B+
626
$9.7M
$50M - $100M
625
$250M - $500M
625
$25M - $50M
625
$250M - $500M
624
$1B - $10B
624
$100M - $250M
624
$1B - $10B
623
$666M
$250M - $500M
622
$500M - $1B
622
$250M - $500M
622
$250M - $500M
621
$25M - $50M
619
$1M - $10M
619
$25M - $50M
619
$500M - $1B
618
$1B - $10B
618
$100M - $250M
617
$50M - $100M
617
$250M - $500M
617
$100M - $250M
617
$50M - $100M
616
$1.9B
$1B - $10B
616
$1B - $10B
616
$353M
$25M - $50M
616
$500M
$1B - $10B
615
$100M
$100M - $250M
615
$100M - $250M
614
$1M - $10M
613
$569M
$100M - $250M
613
$53M
$50M - $100M
613
$250M - $500M
612
$10M - $25M
611
$50M - $100M
610
$25M - $50M
610
$10M - $25M
610
$100M - $250M
609
$250M - $500M
608
$96M
$250M - $500M
608
$10M - $25M
608
$100M - $250M
606
$250M - $500M
606
$100M - $250M
606
$100M - $250M
606
$250M - $500M
605
$250M - $500M
605
$250M - $500M
605
$100M - $250M
604
$50M - $100M
604
$315M
$500M - $1B
603
$1B - $10B
603
$25M - $50M
603
$1B - $10B
603
$50M - $100M
602
$1B - $10B
602
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 Exactech, InPost UK and Intuitive Machines.
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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