List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Knightscope, McGrath Foundation and Mott MacDonald - MM Pakistan JV. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$114M
$10M - $25M
129
$1M - $10M
129
$1M - $10M
129
$100M - $250M
129
$50M - $100M
129
$100M - $250M
129
$59M
$25M - $50M
128
$25M - $50M
128
$10M - $25M
128
$10M - $25M
128
$10M - $25M
128
$100M - $250M
128
$25M - $50M
128
$216M
$25M - $50M
128
$10M - $25M
128
$12M
$25M - $50M
128
$1M - $10M
128
$100M - $250M
128
$10M - $25M
128
$50M - $100M
128
$10M - $25M
127
$1M - $10M
127
$250M - $500M
127
$64M
$10M - $25M
127
$1M - $10M
127
$50M - $100M
127
$25M - $50M
127
$1M - $10M
127
$60M
$25M - $50M
127
$50M - $100M
127
$10M - $25M
127
$100M - $250M
127
$37M
$100M - $250M
127
$80M
$100M - $250M
127
$50M - $100M
127
$250M - $500M
127
$270M
$10B+
126
$100M - $250M
126
$1M - $10M
126
$1M - $10M
126
$10M - $25M
126
$50M - $100M
126
$100M - $250M
126
$250M - $500M
126
$100M - $250M
126
$50M - $100M
126
$100M - $250M
126
$25M - $50M
126
$18M
$100M - $250M
126
$10M - $25M
126
$1M - $10M
126
$50M - $100M
126
$25M - $50M
125
$100M - $250M
125
$100M - $250M
125
$10M - $25M
125
$100M - $250M
125
$10M - $25M
125
$10M - $25M
125
$50M - $100M
124
$1M - $10M
124
$100M - $250M
124
$10M - $25M
124
$1M - $10M
124
$10M - $25M
124
$7.7M
$100M - $250M
124
$25M - $50M
124
$1M - $10M
124
$100M - $250M
124
$1B - $10B
124
$537K
$1M - $10M
124
$92M
$250M - $500M
124
$50M - $100M
124
$1M - $10M
124
$10M - $25M
124
$897M
$50M - $100M
124
$50M - $100M
123
$100M - $250M
123
$100M - $250M
123
$100M - $250M
123
$50M - $100M
123
$100M - $250M
123
$100M - $250M
123
$3M
$25M - $50M
123
$15M
$100M - $250M
123
$50M - $100M
123
$1M - $10M
123
$100M - $250M
123
$50M - $100M
123
$100M - $250M
123
$1B - $10B
123
$50M - $100M
123
$1M - $10M
123
$25M - $50M
123
$1B - $10B
122
$100M - $250M
122
$25M - $50M
122
$1M - $10M
122
$50M - $100M
122
$50M - $100M
122
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 Knightscope, McGrath Foundation and Mott MacDonald - MM Pakistan JV.
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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