# Companies using RedSeal

We found 2,386 companies that use RedSeal. 271 of them name it in their own job posts, and the rest through employees' public profiles. 111 job posts named it from October 2025 to August 2026. Security Analyst roles mention it most.

Data as of November 9, 2026. Source: Sumble.

## Which companies name RedSeal in the most job posts?

The companies with the most job posts naming RedSeal are Leidos (115), General Dynamics Information Technology (82) and MANTECH (46). All five companies are in Professional Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Leidos](https://sumble.com/orgs/leidos) | 115 | 1 | "Utilize tools such as RedSeal, BigFix, SCAP Compliance Checker (SCC), and HP Fortify to support vulnerability detection and remediation efforts" (Vulnerability Management Specialist Mid, Sep 26, 2026) |
| [General Dynamics Information Technology](https://sumble.com/orgs/general-dynamics-information-technology) | 82 | 3 | "Utilize enterprise security tools such as ACAS, HBSS, Carbon Black, Tanium, RedSeal, and related cybersecurity platforms." (Cybersecurity Engineer, Jul 22, 2026) |
| [MANTECH](https://sumble.com/orgs/mantech-international) | 46 | 1 | "On-the-job training availability for RedSeal, Forward Networks, and other specialized cybersecurity tools." (Senior Cyber Security Engineer, Nov 3, 2026) |
| [Booz Allen Hamilton](https://sumble.com/orgs/booz-allen-hamilton) | 42 | 6 | "Knowledge of automatic penetration testing software, such as Redseal" (Program Management Specialist, Senior, Oct 23, 2026) |
| [DNI (Delaware Nation Industries)](https://sumble.com/orgs/delaware-nation-industries) | 40 | 0 | "IA tool support such as SPLUNK, RedSeal, ACAS, etc" (system administrator - 3062-03, Nov 4, 2026) |

## Is hiring for RedSeal growing?

From March to May 2026, 0.06 in every 10,000 job posts named RedSeal; from June to August, 0.07 in every 10,000 job posts. One company accounts for most of that change.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 1 | 1,413,673 | 0.01 |
| Nov 2025 | 9 | 1,822,119 | 0.05 |
| Dec 2025 | 7 | 1,236,103 | 0.06 |
| Jan 2026 | 10 | 1,828,002 | 0.05 |
| Feb 2026 | 12 | 1,856,647 | 0.06 |
| Mar 2026 | 9 | 1,850,711 | 0.05 |
| Apr 2026 | 10 | 1,728,886 | 0.06 |
| May 2026 | 14 | 1,821,509 | 0.08 |
| Jun 2026 | 14 | 1,909,496 | 0.07 |
| Jul 2026 | 12 | 1,815,180 | 0.07 |
| Aug 2026 | 13 | 1,835,698 | 0.07 |

## How many companies named RedSeal in a job post for the first time in recent months?

In the three months to August 2026, 5 companies posted about RedSeal for the first time. From March to May, 11 did. Over the 11 months from October 2025, 21 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 11 |
| June to August 2026 | 5 |
| October 2025 to August 2026 | 21 |

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 RedSeal?

2,115 of the 2,386 companies show up because employees list RedSeal on their profiles; 271 name it in their own job posts. 22 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name RedSeal | 271 | 11% |
| Employees' profiles list RedSeal | 2,115 | 89% |

## What size are the companies that use RedSeal?

Companies with fewer than 50 employees are 1.3 times as common among RedSeal users as on the typical tech page. 338 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 27% | 22% |
| 50 to 999 | 44% | 38% |
| 1,000 to 5,000 | 14% | 17% |
| Over 5,000 | 14% | 23% |

## Where are RedSeal companies based?

53% of RedSeal companies are based in Canada. The United States is less common than usual, at 24% against 43% on the typical tech page.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| Canada | 1,215 | 53% | 3.6% |
| United States | 559 | 24% | 43% |
| South Africa | 215 | 9.4% | 0.47% |
| United Kingdom | 51 | 2.2% | 6.4% |
| Australia | 28 | 1.2% | 2.2% |
| New Zealand | 28 | 1.2% | 0.3% |

## Which roles mention RedSeal most?

Security Analyst is the most common role, in 22% of job posts naming RedSeal. IT Support is second, at 16%.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Security Analyst | 22% | 24 | 4 | 8 |
| IT Support | 16% | 18 | 8 | 6 |
| Security Engineer | 14% | 15 | 4 | 8 |
| Information Security Engineer | 9% | 10 | 3 | 7 |
| Network Engineer | 7.2% | 8 | 4 | 3 |
| Systems Engineer | 5.4% | 6 | 0 | 0 |

## Which companies started naming RedSeal in job posts recently?

7 companies with 50 or more employees picked up RedSeal in their job posts from April to August 2026. B/CORE leads the new commercial companies, with 3 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [B/CORE](https://sumble.com/orgs/bridge-core) | 3 |
| Commercial | [Intuitive Machines](https://sumble.com/orgs/intuitive-machines) | 1 |
| Commercial | [Steampunk, Inc.](https://sumble.com/orgs/steampunk-1) | 1 |
| Commercial | [Safe Security](https://sumble.com/orgs/safe-securities) | 1 |
| Commercial | [CommIT Enterprises, Inc.](https://sumble.com/orgs/commit-enterprises) | 1 |

Companies that named RedSeal 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 RedSeal companies use?

AppDetective, NetWitness and Corelight show up far more often at RedSeal companies than at companies of the same size. Next is Sleuthkit: 9% of these companies use it, against 0.01% of similar ones.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| AppDetective | 30 | 21% | 0.02% | 1312 times |
| NetWitness | 23 | 16% | 0.01% | 1080 times |
| Corelight | 13 | 9% | under 0.01% | 1057 times |
| Sleuthkit | 13 | 9% | 0.01% | 609 times |
| SOCET GXP | 11 | 7.6% | 0.02% | 414 times |
| Bourne Shell | 17 | 12% | 0.03% | 379 times |
| Cisco Meeting Server | 10 | 6.9% | 0.02% | 365 times |
| OllyDbg | 15 | 10% | 0.03% | 351 times |

Shares are out of the 144 companies whose job posts name RedSeal, not counting firms whose job posts name almost every technology.

## Which project themes come up in RedSeal job posts?

14 job posts naming RedSeal describe Security Infrastructure Modernization work, the most common theme after broad digital transformation. Broad digital transformation work shows up in 16 of its job posts.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 16 |
| Security Infrastructure Modernization | 14 |

## 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.