List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including AVI Systems, North Broward Hospital District and Core BTS. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$500M - $1B
494
$100M - $250M
494
$250M - $500M
493
$20M
$100M - $250M
493
$100M - $250M
493
$25M - $50M
492
$250M - $500M
492
$50M - $100M
492
$25M - $50M
492
$500M - $1B
492
$50M - $100M
491
$50M - $100M
490
$100M - $250M
489
$50M - $100M
489
$25M - $50M
489
$500M - $1B
489
$1B - $10B
488
$10M - $25M
488
$1M - $10M
488
$1.1M
$100M - $250M
488
$1M - $10M
488
$100M - $250M
487
$1B - $10B
487
$500M - $1B
487
$500M - $1B
487
$25M - $50M
487
$100M - $250M
487
$50M - $100M
487
$1B - $10B
487
$250M - $500M
486
$1M - $10M
486
$10M - $25M
486
$250M - $500M
485
$283M
$500M - $1B
485
$25M - $50M
485
$500M - $1B
485
$25M - $50M
485
$10M - $25M
484
$250M - $500M
484
$250M - $500M
484
$250M - $500M
484
$10M - $25M
484
$50M - $100M
484
$250M - $500M
484
$250M - $500M
484
$104M
$1M - $10M
484
$11M
$100M - $250M
483
$50M - $100M
483
$250M - $500M
483
$25M - $50M
483
$25M - $50M
482
$500M - $1B
481
$1M - $10M
481
$500M - $1B
481
$338M
$25M - $50M
481
$1M - $10M
481
$50M - $100M
480
$10M - $25M
480
$100M - $250M
480
$1B - $10B
480
$250M - $500M
480
$50M - $100M
479
$1B - $10B
479
$100M - $250M
479
$250M - $500M
477
$500M - $1B
477
$100M - $250M
477
$20M
$50M - $100M
477
$50M - $100M
477
$81M
$50M - $100M
476
$250M - $500M
476
$250M - $500M
476
$15M
$1B - $10B
476
$100M - $250M
476
$250M - $500M
475
$100M - $250M
475
$1B - $10B
475
$100M - $250M
474
$50M - $100M
474
$100M - $250M
474
$50M - $100M
474
$100M - $250M
474
$250M - $500M
474
$25M - $50M
473
$50M - $100M
473
$100M - $250M
473
$100M - $250M
472
$100M - $250M
471
$500M - $1B
471
$1B - $10B
471
$1M - $10M
471
$29M
$100M - $250M
471
$100M - $250M
470
$330M
$500M - $1B
470
$500M - $1B
470
$10M - $25M
469
$500M - $1B
469
$166M
$100M - $250M
469
$250M - $500M
469
$25M - $50M
469
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 AVI Systems, North Broward Hospital District and Core BTS.
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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