List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Austin Radiological Association, Axient and Banco J. P. Morgan. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$100M - $250M
501
$100M - $250M
501
$1M - $10M
501
<$1M
501
501
$50M - $100M
501
$25M - $50M
501
$100M - $250M
501
$1M - $10M
501
$10M - $25M
501
$50M - $100M
501
<$1M
501
<$1M
501
<$1M
501
$10M - $25M
501
$1M - $10M
501
$1M - $10M
501
$1M - $10M
501
<$1M
501
$25M - $50M
501
$1M - $10M
501
$1M - $10M
501
<$1M
501
<$1M
501
$1M - $10M
501
$1M - $10M
501
$100M - $250M
501
<$1M
501
$1M - $10M
501
$10M - $25M
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
$25M
$100M - $250M
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
$50M - $100M
501
$50M - $100M
501
$10M - $25M
501
<$1M
501
$25M - $50M
501
$1M - $10M
501
$100M - $250M
500
$250M - $500M
500
$500M - $1B
500
$25M - $50M
499
$50M - $100M
499
$25M - $50M
499
$100M - $250M
499
$5.7M
$1B - $10B
499
$100M - $250M
498
$100M - $250M
498
$52M
$250M - $500M
498
$10M - $25M
498
$10M - $25M
497
$232M
$1B - $10B
497
$10M - $25M
497
$38M
$250M - $500M
496
$1M - $10M
496
$500M - $1B
496
$50M - $100M
496
$50M - $100M
496
$50M - $100M
496
$100M - $250M
495
$10M - $25M
495
$25M - $50M
495
$1M - $10M
495
$250M - $500M
495
$100M - $250M
495
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 Austin Radiological Association, Axient and Banco J. P. Morgan.
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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