List of Companies Using Qualys
Prospecting companies using Qualys? Here they are, biggest first, including ADP Brazil Labs, RFA and PNR RailWorks. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$10M - $25M
600
$500M - $1B
600
$50M - $100M
599
$2.4M
$500M - $1B
599
$500M - $1B
598
$250M - $500M
597
$250M - $500M
597
$50M - $100M
596
$10M
$100M - $250M
596
$1M - $10M
596
$12M
$250M - $500M
596
$100M - $250M
594
$665M
$100M - $250M
594
$500M - $1B
594
$10M - $25M
593
$24M
$10M - $25M
592
$100M - $250M
591
$100M - $250M
591
$1M - $10M
591
$10M - $25M
591
$100M
$250M - $500M
590
$100M - $250M
590
$100M - $250M
589
$30M
$25M - $50M
589
$250M - $500M
588
$10M - $25M
588
$500M - $1B
587
$250M - $500M
587
$25M - $50M
587
$500M - $1B
586
$1M - $10M
586
$1M - $10M
586
$50M - $100M
586
$250M - $500M
586
$1.2B
$100M - $250M
586
$1B - $10B
585
$100M - $250M
584
$80M
$100M - $250M
583
$38M
$100M - $250M
583
$50M - $100M
582
$50M - $100M
580
$25M - $50M
580
$500M - $1B
580
$1.1B
$500M - $1B
580
$1B - $10B
579
$1M - $10M
579
$179M
$1B - $10B
579
$10M - $25M
579
$50M - $100M
579
$1B - $10B
577
$17M
$500M - $1B
577
$1M - $10M
576
$10M - $25M
576
$250M - $500M
576
$1M - $10M
576
$500M - $1B
574
$50M - $100M
574
$517M
$50M - $100M
572
$100M - $250M
571
$50M - $100M
571
$36M
$500M - $1B
570
$10M - $25M
570
$25M - $50M
570
$25M - $50M
570
$12M
$100M - $250M
569
$25M - $50M
569
$250M - $500M
569
$1.8B
$250M - $500M
569
$500M - $1B
568
$250M - $500M
568
$789M
$10B+
567
$35M
$100M - $250M
567
$50M - $100M
567
$500M - $1B
567
$250M - $500M
567
$10M - $25M
567
$25M - $50M
566
$1B - $10B
564
$100M - $250M
564
$50M - $100M
564
$1B - $10B
563
$25M - $50M
563
$250M - $500M
562
$25M - $50M
562
$100M - $250M
562
$500M - $1B
562
$50M - $100M
562
$1B - $10B
560
$411M
$500M - $1B
560
$100M - $250M
559
$50M - $100M
558
$32M
$100M - $250M
557
$100M - $250M
557
$1B - $10B
556
$1B - $10B
556
$1M - $10M
555
$102M
$250M - $500M
555
$25M - $50M
555
$120M
$50M - $100M
554
$1B - $10B
554
About companies using Qualys
Why target companies using Qualys?
Qualys 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 ADP Brazil Labs, RFA and PNR RailWorks.
Which industries use Qualys the most?
Among companies using Qualys 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 Qualys located?
Companies using Qualys are most often headquartered in the United States, the United Kingdom, Canada, France, India and Germany.
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 Qualys?
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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