List of Companies Using Microsoft Defender
Prospecting companies using Microsoft Defender? Here they are, biggest first, including Festo USA, Jolera and MSP Corp. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$250M - $500M
398
$25M - $50M
398
$62M
$10M - $25M
398
$100M - $250M
398
$875K
$250M - $500M
398
$50M - $100M
398
$250M - $500M
398
$3.3M
$1M - $10M
397
$10M - $25M
397
$50M - $100M
397
$250M - $500M
397
$10M - $25M
397
$100M - $250M
397
$250M - $500M
396
$8.5M
$100M - $250M
396
$100M - $250M
396
$100M - $250M
396
$10M - $25M
396
$50M - $100M
395
$100M - $250M
395
$140M
$250M - $500M
395
$1M - $10M
395
$1M - $10M
394
$100M - $250M
394
$1M - $10M
394
$50M - $100M
394
$100M - $250M
394
$50M - $100M
393
$100M - $250M
393
$1M - $10M
393
$201M
$250M - $500M
393
$250M - $500M
392
$50M - $100M
392
$50M - $100M
392
$286M
$50M - $100M
392
$250M - $500M
392
$10M - $25M
392
$10M
$50M - $100M
392
$25M - $50M
392
$50M - $100M
392
$10M - $25M
392
$25M - $50M
391
$1B - $10B
391
$100M - $250M
391
$50M - $100M
391
$50M - $100M
391
$25M - $50M
391
$250M - $500M
391
$25M - $50M
390
$250M - $500M
390
$50M - $100M
390
$250M - $500M
390
$250M - $500M
389
$100M - $250M
389
$25M - $50M
389
$25M - $50M
389
$250M - $500M
389
$60M
$250M - $500M
388
$1M - $10M
388
$100M - $250M
388
$1M - $10M
388
$100M - $250M
388
$50M - $100M
388
$250M - $500M
387
$50M - $100M
387
$100M - $250M
387
$100M - $250M
387
$25M - $50M
386
$100M - $250M
386
$10M - $25M
386
$100M - $250M
385
$50M - $100M
385
$500M - $1B
384
$25M - $50M
384
$50M - $100M
384
$150K
$100M - $250M
384
$100M - $250M
384
$10M - $25M
384
$25M - $50M
384
$7.3M
$25M - $50M
383
$1M - $10M
383
$25M - $50M
383
$100M - $250M
383
$100M - $250M
383
$25M - $50M
383
$6.8M
$100M - $250M
383
$50M - $100M
383
$50M - $100M
383
$100M - $250M
383
$1B - $10B
382
$10M - $25M
382
$50M - $100M
382
$1M - $10M
382
$10M - $25M
381
$10M - $25M
381
$100M - $250M
381
$100M - $250M
380
$566M
$100M - $250M
380
$25M - $50M
380
$250M - $500M
380
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 Festo USA, Jolera and MSP Corp.
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.
