List of Companies Using Qualys

Prospecting companies using Qualys? Here they are, biggest first, including KlingStubbins, Lexicon Tech Solutions and Optomi Professional Services. Open a company to see its revenue range, headcount, tech stack and the people to contact.

Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
121

$50M - $100M
121

$100M - $250M
121

$1M - $10M
121

$10M - $25M
121

$50M - $100M
120

$100M - $250M
120

$1M - $10M
120

$250M - $500M
120

$50M - $100M
120

$25M - $50M
120

$120M
$25M - $50M
120

$25M - $50M
120

$100M - $250M
119

$50M - $100M
119

$1M - $10M
119

$100M - $250M
119

$1M - $10M
119

$25M - $50M
119

Hungary, Budapest, Budapest
$10M - $25M
119

$100M - $250M
119

$143M
$100M - $250M
119

$10M - $25M
119

$10M - $25M
119

$10M - $25M
119

$1M - $10M
119

$10M - $25M
119

$1M - $10M
119

$50M - $100M
118

$25M - $50M
118

$50M - $100M
118

$25M - $50M
118

$1M - $10M
118

$250M - $500M
118

$50M - $100M
118

$250M - $500M
118

$25M - $50M
118

$100M - $250M
118

$689K
$100M - $250M
118

$50M - $100M
117

$100M - $250M
117

$100M - $250M
117

$100M - $250M
117

$50M - $100M
117

$10M - $25M
117

$250M - $500M
117

$50M - $100M
117

$100M - $250M
116

$1M - $10M
116

$10M - $25M
116

$2.1M
$1M - $10M
116

<$1M
116

$600M
$50M - $100M
116

$1M - $10M
116

$25M - $50M
116

China, Shanghai, Shanghai
$50M - $100M
116

$1M - $10M
116

$1M - $10M
116

$1M - $10M
116

$500M - $1B
115

$50M - $100M
115

$10M - $25M
115

$25M - $50M
115

$100M - $250M
115

$25M - $50M
115

$50M - $100M
115

$25M - $50M
115

$70M
$10M - $25M
115

$19M
$25M - $50M
115

$1M - $10M
115

$100M - $250M
114

$100M - $250M
114

$250M - $500M
114

$100M - $250M
114

$100M - $250M
114

$25M - $50M
114

$1M - $10M
114

$25M - $50M
114

$100M - $250M
114

$100M - $250M
114

$53M
$50M - $100M
114

$10M - $25M
114

$10M - $25M
114

$1M - $10M
113

$50M - $100M
113

$46M
$10M - $25M
113

$100M - $250M
113

$10M - $25M
113

$10M - $25M
113

$25M - $50M
113

$50M - $100M
112

$50M - $100M
112

$25M - $50M
112

$100M - $250M
112

$50M - $100M
112

Japan, Tokio, 港区麻布支所
$50M - $100M
112

$25M - $50M
112

$1M - $10M
112

$50M - $100M
111

$10M - $25M
111

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 KlingStubbins, Lexicon Tech Solutions and Optomi Professional Services.

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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