# 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. Source: Sumble.

## 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 | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Booz Allen Hamilton](https://sumble.com/orgs/booz-allen-hamilton) | 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](https://sumble.com/orgs/lockheed-martin) | 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](https://sumble.com/orgs/leidos) | 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](https://sumble.com/orgs/northrop-grumman) | 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](https://sumble.com/orgs/mantech-international) | 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) |

## 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.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 710 | 1,413,673 | 5.0 |
| Nov 2025 | 948 | 1,822,119 | 5.2 |
| Dec 2025 | 641 | 1,236,103 | 5.2 |
| Jan 2026 | 986 | 1,828,002 | 5.4 |
| Feb 2026 | 918 | 1,856,647 | 4.9 |
| Mar 2026 | 963 | 1,850,711 | 5.2 |
| Apr 2026 | 946 | 1,728,886 | 5.5 |
| May 2026 | 915 | 1,821,509 | 5.0 |
| Jun 2026 | 1,023 | 1,909,496 | 5.4 |
| Jul 2026 | 931 | 1,815,180 | 5.1 |
| Aug 2026 | 960 | 1,835,698 | 5.2 |

## 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.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| 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% |

## 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%.

| Size | Share | Typical tech page |
|---|---:|---:|
| 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.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 12,342 | 46% | 43% |
| India | 1,866 | 7% | 6.9% |
| United Kingdom | 1,682 | 6.3% | 6.4% |
| Canada | 965 | 3.6% | 3.6% |
| France | 706 | 2.6% | 4.6% |
| Germany | 687 | 2.6% | 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 |

## 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 | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Security Analyst | 13% | 1,339 | 341 | 404 |
| Security Engineer | 13% | 1,292 | 384 | 413 |
| Information Security Engineer | 9.8% | 979 | 272 | 275 |
| Penetration Tester | 5.9% | 590 | 151 | 146 |
| IT Support | 5.2% | 514 | 141 | 161 |
| IT Security | 5% | 500 | 152 | 163 |

## 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.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| AI native | [gnani.ai](https://sumble.com/orgs/gnani-innovations) | 1 |
| AI native | [Spear AI](https://sumble.com/orgs/fuse571) | 1 |
| AI native | [HeyGIA.ai](https://sumble.com/orgs/heygia) | 1 |
| Commercial | [Rividium Inc](https://sumble.com/orgs/rividium) | 20 |
| Commercial | [ZenPoint Solutions LLC](https://sumble.com/orgs/zenpoint-solutions) | 7 |
| Commercial | [Karthik Consulting](https://sumble.com/orgs/karthik-consulting) | 5 |
| Commercial | [CHAOS Industries](https://sumble.com/orgs/chaosindustries) | 4 |
| Commercial | [Central Compensation Office CCO](https://sumble.com/orgs/centrale-de-compensation-cdc) | 4 |
| Mid-market | [American Bureau of Shipping (ABS)](https://sumble.com/orgs/american-bureau-of-shipping-abs) | 10 |
| Mid-market | [Accenture Southeast Asia](https://sumble.com/orgs/accenture-sea) | 4 |
| Mid-market | [hiberus](https://sumble.com/orgs/hiberus-tecnologia) | 3 |
| Mid-market | [Osaic](https://sumble.com/orgs/osaic) | 3 |
| Mid-market | [Etiqa Insurance and Takaful](https://sumble.com/orgs/etiqa) | 3 |
| Enterprise | [Hyundai Motor Company](https://sumble.com/orgs/hyundai-motor) | 3 |
| Enterprise | [Danfoss](https://sumble.com/orgs/danfoss) | 3 |
| Enterprise | [alfanar](https://sumble.com/orgs/alfanar) | 3 |
| Enterprise | [Harris Computer](https://sumble.com/orgs/harris-computer) | 3 |
| Enterprise | [Seconci-SP - Serviço Social da Construção Civil do Estado de São Paulo](https://sumble.com/orgs/seconci-sp) | 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.

## 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%.

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

Shares are out of the 6,605 companies whose job posts name Tenable Nessus, not counting firms whose job posts name almost every technology.

## 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.