List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Perforce Delphix, CUA - Credit Union Australia Limited and NuvemRx. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$120M
$100M - $250M
309
$25M - $50M
308
$500M - $1B
308
$250M - $500M
308
$25M - $50M
308
$250M - $500M
308
$10M - $25M
308
$96M
$250M - $500M
307
$791M
$100M - $250M
307
$100M - $250M
307
$100M - $250M
307
$10M - $25M
307
$10M - $25M
306
$50M - $100M
306
$50M - $100M
306
$25M - $50M
306
$1B - $10B
306
$1M - $10M
306
$100M - $250M
306
$864M
$10B+
305
$250M - $500M
305
$10M - $25M
305
$1M - $10M
305
$189K
$100M - $250M
305
$25M - $50M
305
$250M - $500M
305
$100M - $250M
305
$10M - $25M
304
$54M
$100M - $250M
304
$10M - $25M
304
$250M - $500M
304
$100M - $250M
304
$500M - $1B
304
$25M - $50M
304
$1M - $10M
304
$50M - $100M
304
$1M - $10M
304
$250M - $500M
303
$76M
$250M - $500M
303
$25M - $50M
303
$250M - $500M
303
$100M - $250M
303
$10M - $25M
303
$1M - $10M
303
$1B - $10B
303
$100M - $250M
302
$330M
$25M - $50M
302
$100M - $250M
302
$10M - $25M
302
$50M - $100M
302
$100M - $250M
302
$100M - $250M
302
$363M
$100M - $250M
302
$100M - $250M
302
$10M - $25M
302
$500M - $1B
301
$100M - $250M
301
$50M - $100M
301
$50M - $100M
301
$100M - $250M
300
$49M
$10M - $25M
300
$50M - $100M
300
$250M - $500M
300
$50M - $100M
299
$25M - $50M
299
$100M - $250M
298
$10M - $25M
298
$1B - $10B
298
$250M - $500M
298
$100M - $250M
297
$50M - $100M
297
$50M - $100M
297
$250M - $500M
297
$100M - $250M
297
$100M - $250M
297
$50M - $100M
297
$50M - $100M
297
$100M - $250M
296
$100M - $250M
296
$100M - $250M
296
$25M - $50M
296
$100M - $250M
296
$10M - $25M
295
$25M - $50M
295
$100M - $250M
295
$1B - $10B
295
$37M
$250M - $500M
295
$250M - $500M
295
$500M - $1B
295
$25M - $50M
294
$500M - $1B
294
$250M - $500M
294
$100M - $250M
294
$25M - $50M
294
$500M - $1B
294
$50M - $100M
294
$50M - $100M
294
$10M - $25M
294
$1B - $10B
294
$10M - $25M
294
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 Perforce Delphix, CUA - Credit Union Australia Limited and NuvemRx.
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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