List of Companies Using Nessus
Prospecting companies using Nessus? Here they are, biggest first, including Approach Cyber, Citadel Completions LLC and DT Professional Services. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
81
$25M - $50M
81
$50M - $100M
81
$250M - $500M
81
$50M - $100M
81
$25M - $50M
81
$25M - $50M
81
$50M - $100M
81
$50M - $100M
81
$1M - $10M
81
$49M
$1M - $10M
81
$100M - $250M
81
$100M - $250M
81
$50M - $100M
81
$1M - $10M
81
$50M - $100M
81
$100M - $250M
80
$119M
$1M - $10M
80
$50M - $100M
80
<$1M
80
$10M - $25M
80
$50M - $100M
80
$50M - $100M
80
$1M - $10M
80
$295M
$25M - $50M
80
$1M - $10M
80
$50M - $100M
80
$100M - $250M
80
$1M - $10M
80
$1M - $10M
80
$1M - $10M
80
$2.3M
$1M - $10M
80
$10M - $25M
79
$25M - $50M
79
$100M - $250M
79
$100M - $250M
79
$1M - $10M
79
$25M - $50M
79
$50M - $100M
79
$25M - $50M
79
$4.3M
$25M - $50M
79
$25M - $50M
79
$130M
$25M - $50M
79
$1M - $10M
79
$50M - $100M
79
$10M - $25M
79
$50M - $100M
79
$50M - $100M
79
$50M - $100M
79
$50M - $100M
79
$50M - $100M
79
$50M - $100M
79
$1M - $10M
79
$10M - $25M
79
$100M - $250M
79
$50M - $100M
79
$10M - $25M
79
$250M - $500M
79
$50M - $100M
78
$50M - $100M
78
$50M - $100M
78
$1M - $10M
78
$25M - $50M
78
$27M
$1M - $10M
78
$10M - $25M
78
$1M - $10M
78
$50M - $100M
78
<$1M
78
$10M - $25M
78
$100M - $250M
78
$1M - $10M
78
$10M - $25M
78
$25M - $50M
78
$10M - $25M
78
$50M - $100M
78
$10M - $25M
78
$100M - $250M
78
$25M - $50M
78
$25M - $50M
78
$50M - $100M
78
$50M - $100M
78
$25M - $50M
77
$30M
$25M - $50M
77
$1M - $10M
77
$75M
$25M - $50M
77
$47M
$25M - $50M
77
$25M - $50M
77
$10M - $25M
77
$50M - $100M
77
$25M - $50M
77
$50M - $100M
77
$57M
$10M - $25M
77
$1M - $10M
77
$1B - $10B
77
$25M - $50M
77
$50M - $100M
77
$25M - $50M
77
<$1M
77
$250M - $500M
77
$250M - $500M
77
About companies using Nessus
Why target companies using Nessus?
Nessus 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 Approach Cyber, Citadel Completions LLC and DT Professional Services.
Which industries use Nessus the most?
Among companies using Nessus on LeadIQ, the most common industries are IT Services and IT Consulting, Software Development, Financial Services, Defense and Space Manufacturing, Higher Education and Computer and Network Security. Narrow your list to the industry you sell into from there.
Where are companies using Nessus located?
Companies using Nessus are most often headquartered in the United States, the United Kingdom, Canada, India, Germany 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 Nessus?
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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