List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including SMG - Service Management Group, cal and Carousel Industries. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$2.4M
$500M - $1B
602
$100M - $250M
602
$500M - $1B
601
$567M
$1B - $10B
601
$10M - $25M
600
$414M
$50M - $100M
599
$500M - $1B
598
$50M - $100M
598
$100M - $250M
598
$50M - $100M
598
$250M - $500M
597
$50M - $100M
597
$10M - $25M
597
$25M - $50M
596
$10M - $25M
596
$25M - $50M
595
$250M - $500M
594
$10M
$100M - $250M
594
$250M - $500M
594
$50M - $100M
594
$1B - $10B
593
$100M - $250M
593
$1.1B
$500M - $1B
593
$250M - $500M
592
$10M - $25M
592
$79M
$25M - $50M
592
$1M - $10M
592
$50M - $100M
591
$500M - $1B
590
$1M - $10M
589
$50M - $100M
589
$100M - $250M
589
$100M - $250M
588
$3.6B
$250M - $500M
588
$50M - $100M
588
$100M - $250M
587
$100M - $250M
587
$100M - $250M
587
$180M
$250M - $500M
586
$50M - $100M
585
$100M - $250M
583
$100M - $250M
583
$1B - $10B
583
$10M - $25M
582
$1B
$500M - $1B
581
$1M - $10M
581
$250M - $500M
581
$100M - $250M
581
$25M - $50M
581
$500M - $1B
580
$250M - $500M
580
$1M - $10M
580
$22M
$1M - $10M
579
$100M - $250M
579
$250M - $500M
578
$50M - $100M
578
$50M - $100M
578
$250M - $500M
577
$1M - $10M
577
$25M - $50M
575
$100M - $250M
574
$1M - $10M
574
$25M - $50M
574
$1M - $10M
574
$50M - $100M
573
$500M - $1B
573
$50M - $100M
572
$250M - $500M
572
$250M - $500M
572
$411M
$500M - $1B
572
$1B - $10B
570
$500M - $1B
570
$1B - $10B
569
$100M - $250M
568
$25M - $50M
568
$1B - $10B
568
$100M - $250M
568
$789M
$10B+
567
$50M - $100M
567
$1B - $10B
567
$250M - $500M
567
$245K
$250M - $500M
567
$10M - $25M
566
$25M - $50M
566
$500M - $1B
566
$60M
$500M - $1B
566
$250M - $500M
566
$500M - $1B
565
$250M - $500M
565
$1B - $10B
564
$100M - $250M
564
$500M - $1B
564
$216M
$250M - $500M
563
$10M - $25M
563
$1B - $10B
562
$500M - $1B
562
$250M - $500M
562
$50M - $100M
561
$1M - $10M
561
$250M - $500M
558
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 SMG - Service Management Group, cal and Carousel Industries.
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.
