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Companies using Tenable Nessus

28,186 companies use Tenable Nessus, based on their job posts and their employees' public profiles. Its share of job posts held steady in the three months to August 2026; 9,941 job posts named it from October 2025 to August 2026. Cybersecurity teams are its most common home.

Data as of November 9, 2026 · Markdown version

Which companies name Tenable Nessus in the most job posts?

Booz Allen Hamilton has posted more jobs naming Tenable Nessus than any other company: 1,371. Three of these five companies are in Professional Services.
Company Posts People Recent job post
Booz Allen Hamilton Professional Services · first seen Aug 2022 1,371 260 "Experience with security assessment tools, including Nessus, Metasploit, Burp Suite Pro, Cobalt Strike, or Mythic"Red Team Operator, Senior, Nov 6, 2026
Lockheed Martin Manufacturing · first seen Jul 2022 1,185 234 "Hands on technical experience with industry standard Information Assurance tools (Splunk, Nessus/Tenable/ACAS, STIGViewer/SCAP Compliance Checker/eSTIG, Trellix ePO, Trellix DLP)"Information Systems Security Manager, Oct 23, 2026
Leidos Professional Services · first seen Jul 2022 1,157 178 "Deploy, maintain, and perform tuning of Tenable Nessus Managers and Nessus Agents to meet current and future needs"Tenable RHEL ACAS Administrator, Nov 1, 2026
Northrop Grumman Manufacturing · first seen Jul 2022 1,109 220 "Knowledge of security tools such as EMASS, Xacta, ACAS, Nessus, Splunk, SEPM, and SCAP."Principal/Sr. Principal Cybersecurity Analyst, Nov 7, 2026
MANTECH Professional Services · first seen Jul 2022 742 62 "Implement and test security controls using DISA STIGs, SRGs, and ACAS/Nessus vulnerability scans to ensure full-scope compliance across all assets."Cyber Security Analyst, Nov 7, 2026
Showing 1 to 5 of 8,896 companies with job posts Sign up to see all companies using Tenable Nessus ›

What else do we know about Tenable Nessus?

Is hiring for Tenable Nessus growing?

Tenable Nessus' share of job posts is about the same as three months earlier: 5.2 in every 10,000 job posts from June to August 2026, against 5.2 from March to May. Its busiest month was April 2026, at 5.5.
Share of job posts naming Tenable Nessus by month, October 2025 to August 2026, in job posts in every 10,000 Moves from 5.0 in October 2025 to 5.2 in August 2026, in job posts in every 10,000. 6.3 4.7 3.1 1.6 0 5.2 Oct '25 Nov Dec Jan '26 Feb Mar Apr May Jun Jul Aug
Show the data
MonthJob posts naming Tenable NessusAll job postsPer 10,000
Oct 20257101,413,6735.0
Nov 20259481,822,1195.2
Dec 20256411,236,1035.2
Jan 20269861,828,0025.4
Feb 20269181,856,6474.9
Mar 20269631,850,7115.2
Apr 20269461,728,8865.5
May 20269151,821,5095.0
Jun 20261,0231,909,4965.4
Jul 20269311,815,1805.1
Aug 20269601,835,6985.2

How many companies named Tenable Nessus in a job post for the first time in recent months?

415 companies named Tenable Nessus in a job post for the first time from June to August 2026, against 347 from March to May. That brings the companies naming it for the first time since October 2025 to 1,322, through August 2026.
March to May 2026 347
June to August 2026 415
October 2025 to August 2026 1,322

Companies whose first job post naming it appeared in that period. Recruiters, staffing firms and job boards are left out.

How do we know which companies use Tenable Nessus?

68% of the companies here are known from employees' profiles alone, and 32% name Tenable Nessus in their own job posts. 3,356 show up in both job posts and employees' profiles.
How we know Companies Share
Job posts name Tenable Nessus
8,896 32%
Employees' profiles list Tenable Nessus
19,290 68%

28,186 companies. Each is counted once, under the strongest evidence we have for it.

What size are the companies that use Tenable Nessus?

Companies with 50 to 999 employees are 1.2 times as common among Tenable Nessus users as on the typical tech page. The second-largest group is companies with fewer than 50 employees, at 23%.

Share of its companies Typical tech page

ShareTypical
Under 50 employees
23% 22%
50 to 999
47% 38%
1,000 to 5,000
19% 17%
Over 5,000
11% 23%

Where are Tenable Nessus companies based?

Tenable Nessus companies are spread across 170 countries and territories. The United States leads with 46%, then India with 7%. France is less common than usual, at 2.6% against 4.6% on the typical tech page.
ShareTypical
United States
46% 43%
India
7% 6.9%
United Kingdom
6.3% 6.4%
Canada
3.6% 3.6%
France
2.6% 4.6%
Germany
2.6% 4.4%

Companies in 170 countries and territories. Shares are of companies with a known headquarters country.

Show the data
CountryCompaniesShareTypical tech page
United States12,34246%43%
India1,8667%6.9%
United Kingdom1,6826.3%6.4%
Canada9653.6%3.6%
France7062.6%4.6%
Germany6872.6%4.4%

Which teams work with Tenable Nessus?

Tenable Nessus turns up most in job posts for cybersecurity, IT and information security teams. Security teams come fourth, at 158 companies.
Team Companies
Cybersecurity
346
IT
202
Information security
185
Security
158
SOC
130
Vulnerability management
80

What else do Tenable Nessus companies use?

Compared with companies of the same size, Tenable Nessus companies stand out for using OpenVAS and Nmap. Cameo comes third, 21 times as common as usual, at 5.8%.

Share of the 6,605 Tenable Nessus companies counted here whose job posts also name the tool Typical for companies the same size

Tool Also name it Typical Times as common
OpenVAS 615 companies
9.3% 0.29% 32x
Nmap 2,022 companies
31% 1.4% 22x
Cameo 381 companies
5.8% 0.27% 21x
Trellix 874 companies
13% 0.7% 19x
Tool Also name it Typical Times as common
Fortify 795 companies
12% 0.69% 18x
Burp Suite 2,584 companies
39% 2.3% 17x
HCL BigFix 366 companies
5.5% 0.36% 15x
LogRhythm 380 companies
5.8% 0.39% 15x

Which companies started naming Tenable Nessus in job posts recently?

Between April and August 2026, Tenable Nessus appeared for the first time in job posts at 410 companies: 262 commercial, 95 mid-market and 53 enterprise. Rividium Inc leads the new commercial companies, with 20 job posts from April to August.
AI native any size · 3 new
Company Posts
gnani.ai 1
Spear AI 1
HeyGIA.ai 1
Commercial 50 to 999 employees · 262 new
Company Posts
Rividium Inc 20
ZenPoint Solutions LLC 7
Karthik Consulting 5
CHAOS Industries 4
Central Compensation Office CCO 4
Mid-market 1,000 to 5,000 employees · 95 new
Company Posts
American Bureau of Shipping (ABS) 10
Accenture Southeast Asia 4
hiberus 3
Osaic 3
Etiqa Insurance and Takaful 3
Enterprise over 5,000 employees · 53 new
Company Posts
Hyundai Motor Company 3
Danfoss 3
alfanar 3
Harris Computer 3
Seconci-SP - Serviço Social da Construção Civil do Estado de São Paulo 3

Companies that named Tenable Nessus in a job post for the first time between April and August 2026, ranked by their job posts in those months. AI-native companies get a group of their own, whatever their size. Recruiters and job boards are left out.

Which roles mention Tenable Nessus most?

No single role dominates for Tenable Nessus; Security Analyst leads with 13% of the job posts. The top four roles cover 42% of these job posts.
Role Share Posts
Security Analyst
13% 1,339
Security Engineer
13% 1,292
Information Security Engineer
9.8% 979
Penetration Tester
5.9% 590
IT Support
5.2% 514
IT Security
5% 500
Show the data
RoleShareOct 2025 to Aug 2026Mar to May 2026Jun to Aug 2026
Security Analyst13%1,339341404
Security Engineer13%1,292384413
Information Security Engineer9.8%979272275
Penetration Tester5.9%590151146
IT Support5.2%514141161
IT Security5%500152163

Which project themes come up in Tenable Nessus job posts?

Setting aside broad digital transformation, Security Infrastructure Modernization is the theme teams hiring for Tenable Nessus mention most, in 751 job posts. After that comes Cloud Migration, with 275.
Project theme Job posts
Digital Transformation 1,820
Security Infrastructure Modernization 751
Cloud Migration 275
Cloud Cost Optimization 145
About this data

Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.

Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.

Sumble has a free plan, and the same data is available through its API and MCP server.

A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.

Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.