List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Rollins School of Public Health at Emory University, Wedgewood and U.S. Silica Company. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$5.4M
$100M - $250M
834
$500M - $1B
833
$1.1B
$500M - $1B
832
$1.5B
$1B - $10B
831
$500M - $1B
831
$45M
$1B - $10B
830
$72M
$100M - $250M
828
$50M - $100M
827
$50M - $100M
825
$500M - $1B
824
$100M - $250M
824
$1B - $10B
823
$500M - $1B
823
$100M - $250M
821
$50M - $100M
820
$100M - $250M
819
$50M - $100M
819
$1M - $10M
819
$25M - $50M
819
$50M - $100M
818
$100M - $250M
818
$100M - $250M
818
$100M - $250M
817
$500M - $1B
816
$500M - $1B
816
$100M - $250M
815
$250M - $500M
815
$100M - $250M
813
$25M - $50M
813
$1B - $10B
812
$1B - $10B
811
$500M - $1B
810
$310M
$500M - $1B
809
$25M - $50M
808
$250M - $500M
806
$250M - $500M
806
$500M - $1B
806
$500M - $1B
805
$10M - $25M
805
$25M - $50M
805
$100M - $250M
805
$100M - $250M
805
$250M - $500M
804
$100M - $250M
803
$250M - $500M
802
$100M - $250M
802
$10B+
802
$25M - $50M
802
$50M - $100M
801
$250M - $500M
800
$500M - $1B
800
$100M - $250M
800
$100M - $250M
800
$1M - $10M
800
$100M - $250M
797
$100M - $250M
797
$100M - $250M
796
$25M - $50M
796
$50M - $100M
796
$50M - $100M
795
$1B - $10B
794
$50M - $100M
794
$250M - $500M
794
$100M - $250M
794
$1B - $10B
792
$61M
$250M - $500M
792
$10M - $25M
792
$50M - $100M
792
$500M - $1B
791
$500M - $1B
791
$1B - $10B
790
$250M - $500M
790
$1M - $10M
789
$1B - $10B
789
$10M - $25M
789
$250M - $500M
787
$100M - $250M
786
$1B - $10B
786
$500M - $1B
786
$50M - $100M
786
$25M - $50M
785
$250M - $500M
784
$25M - $50M
784
$500M - $1B
784
$100M - $250M
783
$250M - $500M
783
$1B - $10B
783
$10M - $25M
782
$1B - $10B
782
$25M - $50M
782
$3.5B
$500M - $1B
782
$10M - $25M
782
$100M - $250M
781
$100M - $250M
780
$500M - $1B
780
$250M - $500M
779
$100M - $250M
779
$25M - $50M
779
$250M - $500M
778
$250M - $500M
778
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 Rollins School of Public Health at Emory University, Wedgewood and U.S. Silica Company.
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.
Search by Industry
ConstructionIT Services and IT ConsultingSoftware DevelopmentFinancial ServicesReal EstateHospitals and Health CareAdvertising ServicesNon-profit OrganizationsInsuranceLaw PracticeRetailWellness and Fitness ServicesBusiness Consulting and ServicesEducation Administration ProgramsMotor Vehicle ManufacturingTechnology, Information and InternetFood and Beverage ServicesStaffing and RecruitingAccountingOil and GasHospitalityAppliances, Electrical, and Electronics ManufacturingManufacturingArchitecture and PlanningMachinery Manufacturing
Search by Country
United StatesUnited KingdomCanadaGermanyAustraliaFranceNetherlandsIndiaSpainSwitzerlandItalySwedenBrazilBelgiumSingaporeIrelandUnited Arab EmiratesDenmarkSouth AfricaIsraelNew ZealandNorwayFinland
Search by Technology
Top companies by employee count
Top companies in United States by employee countTop companies in United Kingdom by employee countTop companies in Canada by employee countTop companies in Germany by employee countTop companies in France by employee countTop companies in Australia by employee countTop companies in Netherlands by employee countTop companies in India by employee countTop companies in Spain by employee countTop companies in Switzerland by employee countTop companies in Sweden by employee countTop companies in Italy by employee countTop companies in Denmark by employee countTop companies in Brazil by employee countTop companies in Ireland by employee count
1-888-653-2347 
support@leadiq.com © LeadIQ, Inc. All rights reserved.
