# Companies using 8051

We found 1,100 companies that use 8051. 260 of them name it in their own job posts, and the rest through employees' public profiles. From October 2025 to August 2026, 105 job posts named it. Embedded Engineer roles mention it most.

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

## Which companies name 8051 in the most job posts?

Skyworks Solutions, Inc., AMD and Neptune Technology Group mention 8051 in the most job posts. Four of these five companies are in Manufacturing.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Skyworks Solutions, Inc.](https://sumble.com/orgs/skyworks-solutions) | 48 | 0 | "Experience with embedded processor design and firmware/software development, especially for 8051 or ARM cores" (intern, Oct 23, 2026) |
| [AMD](https://sumble.com/orgs/amd) | 44 | 14 | "It’s a plus if have one or more of the following experience/knowledge, such as X86/ARM/8051 architecture, AMBA(AXI/AHB/APB) bus, PCIe protocol." (Senior Silicon Design Engineer, Jun 2, 2026) |
| [Neptune Technology Group](https://sumble.com/orgs/neptune-technology-group) | 27 | 0 | "Experience with microcontroller families such as ARM Cortex M, MSP430, and 8051" (Senior Firmware Engineer I, Nov 19, 2025) |
| [Marvell Technology](https://sumble.com/orgs/marvell-technology) | 21 | 6 | "Micro-controller 8051 or ARM Cortex experience" (Digital IC Design, Senior Staff Engineer, Jan 27, 2025) |
| [Silicon Labs](https://sumble.com/orgs/silicon-labs) | 21 | 3 | "Silicon Labs’ IoT products include multi-protocol wireless SoC’s, 32-bit ARM Cortex-based MCU’s, and 8-bit 8051 MCU’s." (senior field sales engineer, Nov 2, 2025) |

## Is hiring for 8051 growing?

Job posts mentioning 8051 went from 0.06 to 0.04 in every 10,000 job posts, comparing March to May with June to August 2026. These are small numbers of job posts, so a few companies can move them.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 9 | 1,413,673 | 0.06 |
| Nov 2025 | 10 | 1,822,119 | 0.05 |
| Dec 2025 | 6 | 1,236,103 | 0.05 |
| Jan 2026 | 10 | 1,828,002 | 0.05 |
| Feb 2026 | 11 | 1,856,647 | 0.06 |
| Mar 2026 | 9 | 1,850,711 | 0.05 |
| Apr 2026 | 14 | 1,728,886 | 0.08 |
| May 2026 | 11 | 1,821,509 | 0.06 |
| Jun 2026 | 14 | 1,909,496 | 0.07 |
| Jul 2026 | 3 | 1,815,180 | 0.02 |
| Aug 2026 | 8 | 1,835,698 | 0.04 |

## How many companies named 8051 in a job post for the first time in recent months?

4 companies named 8051 in a job post for the first time from June to August 2026, against 6 from March to May. From October 2025 to August 2026, 22 companies named it in a job post for the first time.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 6 |
| June to August 2026 | 4 |
| October 2025 to August 2026 | 22 |

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 8051?

Employees' profiles account for 76% of the companies here. 260 companies name 8051 in job posts they wrote. 39 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name 8051 | 260 | 24% |
| Employees' profiles list 8051 | 840 | 76% |

## What size are the companies that use 8051?

8051's users look like the average tech page by size. The largest group is companies with 50 to 999 employees, at 36%. 264 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 23% | 22% |
| 50 to 999 | 36% | 38% |
| 1,000 to 5,000 | 18% | 17% |
| Over 5,000 | 24% | 23% |

## Where are 8051 companies based?

India is 4.2 times as common among 8051 companies as on the typical tech page, at 29%. The United States leads overall with 36%. Its companies are based in 55 countries and territories.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 375 | 36% | 43% |
| India | 299 | 29% | 6.9% |
| France | 34 | 3.3% | 4.6% |
| United Kingdom | 32 | 3.1% | 6.4% |
| Germany | 29 | 2.8% | 4.4% |
| Taiwan | 27 | 2.6% | 0.2% |

## Which teams work with 8051?

Job posts naming 8051 point to engineering teams most often, at 6 companies.

| Team | Companies |
|---|---:|
| Engineering | 6 |
| R&D | 4 |
| Product development | 3 |
| Software development | 3 |
| Automated products division | 2 |
| Data center power & control division | 2 |

## Which roles mention 8051 most?

8051 shows up across many roles. The top one, Embedded Engineer, has 19% of the job posts. The top four roles cover 54% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Embedded Engineer | 19% | 20 | 10 | 2 |
| Firmware Engineer | 15% | 16 | 3 | 4 |
| Chip Designer | 11% | 12 | 3 | 1 |
| Software Engineer | 8.6% | 9 | 4 | 3 |
| Electrical Engineer | 6.7% | 7 | 2 | 0 |
| Learning & Development | 4.8% | 5 | 1 | 1 |

## What else do 8051 companies use?

Compared with companies of the same size, 8051 companies stand out for using AVR and MSP430. Design Compiler comes third, 141 times as common as usual, at 5.8%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| AVR | 43 | 25% | 0.11% | 231 times |
| MSP430 | 11 | 6.4% | 0.04% | 145 times |
| Design Compiler | 10 | 5.8% | 0.04% | 141 times |
| Innovus | 10 | 5.8% | 0.05% | 113 times |
| SystemC | 12 | 7% | 0.07% | 103 times |
| ThreadX | 12 | 7% | 0.08% | 88 times |
| RISC-V | 22 | 13% | 0.16% | 80 times |
| Questa | 13 | 7.6% | 0.1% | 76 times |

Shares are out of the 171 companies whose job posts name 8051, not counting firms whose job posts name almost every technology.

## 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.