List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Spectris, Structure Therapeutics and Telefilm Canada. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$400M
$250M - $500M
245
$1.8B
$100M - $250M
245
$50M - $100M
245
$176M
$100M - $250M
245
$250M - $500M
244
$50M - $100M
244
$250M - $500M
244
$100M - $250M
244
243
$100M - $250M
243
$1M - $10M
243
$50M - $100M
243
$50M - $100M
243
$100M - $250M
243
$50M - $100M
243
$250M - $500M
243
$100M - $250M
243
$50M - $100M
243
$50M - $100M
242
$25M - $50M
242
$100M - $250M
242
$100M - $250M
242
$50M - $100M
242
$250M - $500M
242
$25M - $50M
242
$39M
$1M - $10M
242
$100M - $250M
242
$50M - $100M
242
$50M - $100M
241
$250M - $500M
241
$100M - $250M
241
$100M - $250M
241
$1M - $10M
241
$250M - $500M
241
$100M - $250M
241
$1B - $10B
241
$50M - $100M
241
$1B - $10B
240
$100M - $250M
240
$25M - $50M
239
$106M
$100M - $250M
239
$1M - $10M
239
$50M - $100M
239
$500K
$10M - $25M
239
$50M - $100M
239
$10M - $25M
239
$1M - $10M
239
$55M
$250M - $500M
239
$1M
$25M - $50M
239
$250M - $500M
238
$25M - $50M
238
$10M - $25M
238
$50M - $100M
238
$10M - $25M
238
$100M - $250M
238
$15M
$250M - $500M
238
$10M - $25M
237
$25M - $50M
237
$250M - $500M
237
$10M - $25M
237
$100M - $250M
237
$100M - $250M
237
$25M - $50M
237
$10M - $25M
236
$50M - $100M
236
$25M - $50M
236
$10M - $25M
236
$10M - $25M
236
$250M - $500M
235
$20M
$10M - $25M
235
$100M - $250M
235
$1M - $10M
235
$10M - $25M
235
$10M - $25M
235
$1M - $10M
235
$50M - $100M
235
$50M - $100M
235
$50M - $100M
235
$250M - $500M
235
$1M - $10M
235
$100M - $250M
234
$100M - $250M
234
<$1M
234
$100M - $250M
234
$100M - $250M
234
$1M - $10M
234
$250M - $500M
234
$10M - $25M
234
$2.9M
$10M - $25M
234
$10M - $25M
234
$1M - $10M
233
$250M - $500M
233
$50M - $100M
233
$10M - $25M
233
$10M - $25M
233
$25M - $50M
233
$100M - $250M
232
$10M - $25M
232
$100M - $250M
232
$100M - $250M
232
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 Spectris, Structure Therapeutics and Telefilm Canada.
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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