List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Virtusa Corp., Xcenda and Baker McKenzie Amsterdam. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$100M - $250M
185
$250M - $500M
185
$50M - $100M
184
$217M
$50M - $100M
184
$50M - $100M
184
$50M - $100M
184
$100M - $250M
184
$100M - $250M
183
$25M - $50M
183
$250M - $500M
183
$25M - $50M
183
$500M - $1B
183
$50M - $100M
183
<$1M
183
$130M
$100M - $250M
183
$1M - $10M
182
$25M - $50M
182
$10M - $25M
182
$10M - $25M
182
$143M
$25M - $50M
182
$3.6M
$25M - $50M
182
$50M - $100M
182
$1M - $10M
182
$10M - $25M
182
$1M - $10M
182
$10M - $25M
182
$50M - $100M
182
$1M - $10M
182
$100M - $250M
182
$100M - $250M
181
$50M - $100M
181
$250M - $500M
181
$25M - $50M
181
$50M - $100M
181
$100M
$25M - $50M
181
$50M - $100M
181
$50M - $100M
181
$100M - $250M
181
$50M - $100M
180
$100M - $250M
180
$50M - $100M
180
$10M - $25M
180
$10M - $25M
180
$1M - $10M
180
$100M - $250M
180
$25M - $50M
180
$10M - $25M
180
$7M
$100M - $250M
180
$50M - $100M
179
$10M - $25M
179
$100M - $250M
179
$10M - $25M
179
$100M - $250M
179
<$1M
179
$7M
$10M - $25M
178
$100M - $250M
178
$1M - $10M
178
$10M - $25M
178
$25M - $50M
178
$1M - $10M
178
$10M - $25M
178
$17M
$100M - $250M
177
<$1M
177
$14M
$10M - $25M
177
$25M - $50M
177
$1M - $10M
177
$25M - $50M
177
$150M
$250M - $500M
177
$100M - $250M
177
$100M - $250M
177
$500M - $1B
177
$100M - $250M
177
$25M - $50M
177
$25M - $50M
177
$100M - $250M
176
$100M - $250M
176
$10M - $25M
176
$250M - $500M
176
$1B - $10B
176
$173M
$100M - $250M
176
$25M - $50M
176
$1M - $10M
176
$1M - $10M
176
$250M - $500M
176
$10M - $25M
176
$100M - $250M
176
$6M
$25M - $50M
176
$21M
$25M - $50M
176
$100M - $250M
176
$10M - $25M
175
$100M - $250M
175
$1M - $10M
175
$50M - $100M
175
$25M - $50M
175
$25M - $50M
175
$500M - $1B
175
$100M - $250M
175
$50M - $100M
175
$1M - $10M
175
$100M - $250M
174
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 Virtusa Corp., Xcenda and Baker McKenzie Amsterdam.
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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