# Companies using VxWorks

7,868 companies in our data use VxWorks, and 1,728 of them name it in job posts they wrote. Hiring for it is steady, with 3,310 job posts naming it from October 2025 to August 2026. It comes up most in Software Engineer job posts.

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

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

The companies with the most job posts naming VxWorks are Northrop Grumman (1,241), L3Harris Technologies (941) and Lockheed Martin (655). Of the five companies in the table, Northrop Grumman has the most employees who list it on their profiles: 377.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Northrop Grumman](https://sumble.com/orgs/northrop-grumman) | 1,241 | 377 | "Experience with software tool development, including MATLAB, Python, C++, C#, Java, and VxWorks environment." (Principal Electronics Engineer / Sr Principal Electronics Engineer, Nov 7, 2026) |
| [L3Harris Technologies](https://sumble.com/orgs/l3harris) | 941 | 173 | "Operating Systems like VxWorks/LynxOS/Integrity, SELinux, Software Integration, Test, and Verification/Validation" (Associate, Software Engineering, Nov 5, 2026) |
| [Lockheed Martin](https://sumble.com/orgs/lockheed-martin) | 655 | 335 | "Experience with Real-Time Operating Systems (RTOS) (e.g., VxWorks, Green Hills Integrity, LynxOS) and embedded Linux." (Software Engineer Sr Stf - E5, Nov 3, 2026) |
| [Raytheon Technologies](https://sumble.com/orgs/raytheon) | 561 | 344 | "Development experience on Linux, VxWorks, or other Real Time Operating Systems." (Software Engineer II, Onsite, Nov 7, 2026) |
| [Wind River](https://sumble.com/orgs/wind-river) | 347 | 259 | "…systems expertise, you will help design and implement new capabilities while upholding VxWorks’ core principles of security, safety, high performance, and real-time reliability." (Member of Technical Staff – Wind River Next Gen RTOS, Jun 17, 2026) |

## Is hiring for VxWorks growing?

Hiring for VxWorks barely changed, at 1.8 in every 10,000 job posts from June to August 2026 against 1.7 from March to May.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 233 | 1,413,673 | 1.6 |
| Nov 2025 | 304 | 1,822,119 | 1.7 |
| Dec 2025 | 227 | 1,236,103 | 1.8 |
| Jan 2026 | 320 | 1,828,002 | 1.8 |
| Feb 2026 | 325 | 1,856,647 | 1.8 |
| Mar 2026 | 292 | 1,850,711 | 1.6 |
| Apr 2026 | 310 | 1,728,886 | 1.8 |
| May 2026 | 297 | 1,821,509 | 1.6 |
| Jun 2026 | 355 | 1,909,496 | 1.9 |
| Jul 2026 | 295 | 1,815,180 | 1.6 |
| Aug 2026 | 352 | 1,835,698 | 1.9 |

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

Job posts named VxWorks for the first time at 58 companies from June to August 2026, against 54 from March to May. Of the 1,728 companies whose job posts name it, 3.4% first named it from June to August.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 54 |
| June to August 2026 | 58 |
| October 2025 to August 2026 | 218 |

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 VxWorks?

We found 7,868 companies that use VxWorks, 6,140 of them through employees' profiles alone. 601 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name VxWorks | 1,728 | 22% |
| Employees' profiles list VxWorks | 6,140 | 78% |

## What size are the companies that use VxWorks?

The largest group of VxWorks users is companies with 50 to 999 employees (43%), more than on the typical tech page. The second-largest group is companies with fewer than 50 employees, at 27%.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 27% | 22% |
| 50 to 999 | 43% | 38% |
| 1,000 to 5,000 | 16% | 17% |
| Over 5,000 | 14% | 23% |

## Where are VxWorks companies based?

50.4% of VxWorks companies are based in the United States. India is second, at 5.7%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 3,722 | 50.4% | 43% |
| India | 422 | 5.7% | 6.9% |
| United Kingdom | 357 | 4.8% | 6.4% |
| Canada | 355 | 4.8% | 3.6% |
| France | 340 | 4.6% | 4.6% |
| Germany | 309 | 4.2% | 4.4% |

## Which teams work with VxWorks?

Engineering is the team named most often in VxWorks job posts, at 24 companies. Software and software engineering teams come next, at 22 companies each.

| Team | Companies |
|---|---:|
| Engineering | 24 |
| Software | 22 |
| Software engineering | 22 |
| R&D | 19 |
| Embedded software | 14 |
| Software development | 14 |

## Which roles mention VxWorks most?

VxWorks shows up across many roles. The top one, Software Engineer, has 31% of the job posts. Software Engineer posts naming it numbered 252 from March to May 2026 and 322 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Software Engineer | 31% | 1,040 | 252 | 322 |
| Embedded Engineer | 26% | 872 | 212 | 270 |
| Firmware Engineer | 9% | 299 | 87 | 88 |
| Product Security | 3% | 100 | 24 | 24 |
| Software Development Engineer in Test | 2.3% | 77 | 21 | 20 |
| Aerospace Engineer | 2.2% | 73 | 18 | 24 |

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

Between April and August 2026, VxWorks appeared for the first time in job posts at 54 companies: 35 commercial, 8 mid-market and 11 enterprise. Kyndryl has the most job posts of the new enterprise companies, 7 from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Command Post Technologies, Inc](https://sumble.com/orgs/command-post-technologies) | 5 |
| Commercial | [Seargin](https://sumble.com/orgs/seargin) | 3 |
| Commercial | [Azista Space](https://sumble.com/orgs/azista-bst-aerospace) | 3 |
| Commercial | [ISPA Technology](https://sumble.com/orgs/ispa-technology) | 3 |
| Commercial | [Rishabh Software](https://sumble.com/orgs/rishabh-software) | 2 |
| Mid-market | [Qualitest](https://sumble.com/orgs/qualitest-4) | 3 |
| Mid-market | [Accenture France](https://sumble.com/orgs/accenture-france) | 2 |
| Mid-market | [Advanced Military Maintenance Repair & Overhaul Center (AMMROC)](https://sumble.com/orgs/ammroc) | 2 |
| Mid-market | [Diehl Group](https://sumble.com/orgs/diehl-gruppe) | 1 |
| Mid-market | [Idaho National Laboratory](https://sumble.com/orgs/idaho-national-laboratory) | 1 |
| Enterprise | [Kyndryl](https://sumble.com/orgs/kyndryl) | 7 |
| Enterprise | [Almaviva Group](https://sumble.com/orgs/almaviva-do-brasil) | 2 |
| Enterprise | [Accenture in India](https://sumble.com/orgs/accentureindia) | 1 |
| Enterprise | [Johnson Controls](https://sumble.com/orgs/johnson-controls) | 1 |
| Enterprise | [LG Electronics](https://sumble.com/orgs/lg-electronics) | 1 |

Companies that named VxWorks 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 VxWorks companies use?

The tool most tied to VxWorks is RTEMS. 11% of VxWorks companies use it, 294 times the usual rate for their size. SpaceWire comes second, 206 times as common as usual, at 9.5%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| RTEMS | 113 | 11% | 0.04% | 294 times |
| SpaceWire | 95 | 9.5% | 0.05% | 206 times |
| PowerPC | 105 | 11% | 0.06% | 190 times |
| LDRA | 55 | 5.5% | 0.04% | 139 times |
| IBM Rhapsody | 57 | 5.7% | 0.05% | 124 times |
| Petalinux | 66 | 6.6% | 0.06% | 110 times |
| QNX | 276 | 28% | 0.26% | 107 times |
| VectorCast | 56 | 5.6% | 0.05% | 105 times |

Shares are out of the 996 companies whose job posts name VxWorks, not counting firms whose job posts name almost every technology.

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

Beyond general digital transformation, the most common project theme in VxWorks job posts is Microservices Migration (24 posts). Security Infrastructure Modernization is next, in 6 job posts.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 771 |
| Microservices Migration | 24 |
| Security Infrastructure Modernization | 6 |

## 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.