List of Companies Using Qualys
Prospecting companies using Qualys? Here they are, biggest first, including Serigor Inc, Ullink - now part of Broadridge Trading and Connectivity Solutions and ADM Protexin. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
154
$1B - $10B
154
$1M - $10M
153
$25M - $50M
153
$100M - $250M
153
$50M - $100M
153
$10M - $25M
153
$164M
$50M - $100M
153
$25M - $50M
153
$1M - $10M
153
$145M
$100M - $250M
153
$25M - $50M
152
$1M - $10M
152
$1M - $10M
152
$3.8M
$100M - $250M
152
$93M
$50M - $100M
152
$500M - $1B
152
$10M - $25M
152
$10M - $25M
152
$25M - $50M
152
$50M - $100M
151
$1M - $10M
151
$100M - $250M
151
$25M - $50M
151
$10M - $25M
151
$500M - $1B
151
$100M - $250M
151
$100M - $250M
151
$250M - $500M
151
$100M - $250M
151
$58M
$100M - $250M
151
$1M - $10M
150
$100M - $250M
150
$100M - $250M
150
$50M - $100M
150
$10M - $25M
150
$1M - $10M
150
<$1M
150
$10M - $25M
149
$100M - $250M
149
$100M - $250M
149
$1M - $10M
149
$1M - $10M
149
$1M - $10M
149
$50M - $100M
148
$50M - $100M
148
$100M - $250M
148
$250M - $500M
148
$10M - $25M
148
<$1M
148
$85M
$500M - $1B
147
$500M - $1B
147
$100M - $250M
147
<$1M
147
$100M - $250M
147
$100M - $250M
147
$1M - $10M
147
$50M - $100M
147
$112M
$250M - $500M
146
$1.2M
$25M - $50M
146
$1B - $10B
146
$1M - $10M
146
$25M - $50M
146
$100M - $250M
146
$50M - $100M
146
$50M - $100M
146
$50M - $100M
146
$22M
$50M - $100M
146
$25M - $50M
146
$1B - $10B
146
$100M - $250M
145
$17M
$50M - $100M
145
$1M - $10M
145
$50M - $100M
145
$50M - $100M
145
$10M - $25M
145
$25M - $50M
145
$1M - $10M
145
$500M - $1B
145
$100M - $250M
145
$1M - $10M
145
$100M - $250M
145
$100M - $250M
145
$50M - $100M
145
$10M - $25M
145
$1M - $10M
144
$100M - $250M
144
$1M - $10M
144
<$1M
144
$100M - $250M
144
$250M - $500M
143
$25M - $50M
143
$25M - $50M
143
$500M - $1B
143
$25M - $50M
143
$1M - $10M
143
$1M - $10M
143
$129M
$100M - $250M
143
$10M - $25M
143
$100M - $250M
143
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 Serigor Inc, Ullink - now part of Broadridge Trading and Connectivity Solutions and ADM Protexin.
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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