List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including CGT, Virginia Information Technologies Agency and Applied Materials - Israel. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
408
$250M - $500M
408
$25M - $50M
407
$250M - $500M
407
$250M - $500M
407
$25M - $50M
407
$25M - $50M
407
$500M - $1B
406
$50M - $100M
405
$250M - $500M
405
$500M - $1B
405
$50M - $100M
405
$250M - $500M
404
$250M - $500M
404
$50M - $100M
404
$10M - $25M
404
$250M - $500M
404
$250M - $500M
404
$50M - $100M
403
$1B - $10B
403
$7.9M
$50M - $100M
403
$66K
$50M - $100M
403
$100M - $250M
402
$50M - $100M
402
$250M - $500M
402
$25M - $50M
402
$10M - $25M
402
$25M - $50M
402
$100M - $250M
401
$50M - $100M
401
$10M - $25M
401
$100M - $250M
401
$100M - $250M
401
$250M - $500M
401
$100M - $250M
401
$1B - $10B
400
$250M - $500M
400
$25M - $50M
400
$100M - $250M
400
$1M - $10M
400
$250M - $500M
400
$100M - $250M
400
$1M - $10M
400
$250M - $500M
399
$141M
$50M - $100M
399
$140M
$250M - $500M
399
$100M - $250M
399
$25M - $50M
399
$10M - $25M
398
$100M - $250M
398
$3.3M
$1M - $10M
398
$50M - $100M
398
$62M
$10M - $25M
398
$50M - $100M
398
$500M - $1B
397
$25M - $50M
397
$100M - $250M
397
$50M - $100M
397
$100M - $250M
397
$100M - $250M
397
$25M - $50M
397
$10M - $25M
397
$250M - $500M
396
$250M - $500M
396
$100M - $250M
396
$1M - $10M
395
$50M - $100M
395
$100M - $250M
395
$50M - $100M
395
$250M - $500M
395
$201M
$250M - $500M
394
$25M - $50M
393
$25M - $50M
393
$500M - $1B
393
$1M - $10M
393
$286M
$50M - $100M
393
$10M - $25M
393
$10M - $25M
393
$50M - $100M
393
$100M - $250M
393
$1M - $10M
393
$500M - $1B
392
$100M - $250M
392
$10M
$50M - $100M
392
$100M - $250M
391
$100M - $250M
391
$50M - $100M
391
$50M - $100M
391
$10M - $25M
391
$8.5M
$100M - $250M
390
$100M - $250M
390
$1M - $10M
390
$1M - $10M
390
$1.6B
$250M - $500M
390
$25M - $50M
390
$250M - $500M
390
$250M - $500M
389
$100M - $250M
389
$50M - $100M
389
$875K
$250M - $500M
389
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 CGT, Virginia Information Technologies Agency and Applied Materials - Israel.
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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