List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Eurasia Group, Excivity, Inc. and First American Data & Analytics. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
501
$1M - $10M
501
$1M - $10M
501
$100M - $250M
501
<$1M
501
$1M - $10M
501
$10M - $25M
501
$50M - $100M
501
<$1M
501
<$1M
501
$10M - $25M
501
$1M - $10M
501
$10M - $25M
501
<$1M
501
$1B - $10B
501
$10M - $25M
501
$1M - $10M
501
<$1M
501
$50M - $100M
501
$1M - $10M
501
$1M - $10M
501
$1M - $10M
501
$50M - $100M
501
<$1M
501
$50M - $100M
501
$50M - $100M
501
$1M - $10M
501
$10M - $25M
501
$1M - $10M
501
$1M - $10M
501
$10M - $25M
501
$50M - $100M
501
$10M - $25M
501
$1M - $10M
501
$10M - $25M
501
$10M - $25M
501
$36M
$1M - $10M
501
$25M - $50M
501
$25M - $50M
501
<$1M
501
501
$25M - $50M
501
$25M - $50M
501
$250M - $500M
501
<$1M
501
$50M - $100M
501
$10M - $25M
501
<$1M
501
$1M - $10M
501
$25M - $50M
500
$50M - $100M
500
$100M - $250M
499
$500M - $1B
499
$1M - $10M
499
$100M - $250M
499
$50M - $100M
498
$50M - $100M
498
$100M - $250M
498
$179M
$1B - $10B
498
$20M
$100M - $250M
497
$250M - $500M
497
$100M - $250M
497
$250M - $500M
496
$1M - $10M
496
$100M - $250M
496
$250M - $500M
496
$500M - $1B
496
$50M - $100M
496
$100M - $250M
495
$25M - $50M
494
$100M - $250M
494
$331K
$25M - $50M
494
$250M - $500M
493
$10M - $25M
493
$1M - $10M
493
$10M - $25M
493
$25M - $50M
493
$100M - $250M
493
$10M - $25M
493
$100M - $250M
492
$500M - $1B
491
$1.5M
$500M - $1B
491
$1M - $10M
491
$1B - $10B
491
$50M - $100M
490
$25M - $50M
490
$50M - $100M
489
$50M - $100M
489
$25M - $50M
489
$250M - $500M
489
$50M - $100M
489
$500M - $1B
489
$250M - $500M
488
$50M - $100M
488
$100M - $250M
488
$100M - $250M
488
$1B - $10B
487
$250M - $500M
487
$50M - $100M
487
$1.1M
$100M - $250M
487
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 Eurasia Group, Excivity, Inc. and First American Data & Analytics.
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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