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.
Skyworks Solutions, Inc., AMD and Neptune Technology Group mention 8051 in the most job posts. Four of these five companies are in Manufacturing.
CompanyPostsPeopleRecent job post
Skyworks Solutions, Inc.Manufacturing · first seen Sep 2022480
"Experience with embedded processor design and firmware/software development, especially for 8051 or ARM cores"intern, Oct 23, 2026
AMDManufacturing · first seen Jun 20234414
"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 GroupManufacturing · first seen Sep 2022270
"Experience with microcontroller families such as ARM Cortex M, MSP430, and 8051"Senior Firmware Engineer I, Nov 19, 2025
Marvell TechnologyManufacturing · first seen Sep 2022216
"Micro-controller 8051 or ARM Cortex experience"Digital IC Design, Senior Staff Engineer, Jan 27, 2025
Silicon LabsScientific and Technical Services · first seen Nov 2022213
"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
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.
Show the data
Month
Job posts naming 8051
All job posts
Per 10,000
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.
March to May 20266
June to August 20264
October 2025 to August 202622
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 knowCompaniesShare
Job posts name 8051
26024%
Employees' profiles list 8051
84076%
1,100 companies. Each is counted once, under the strongest evidence we have for it.
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.
Share of its companies
Typical tech page
ShareTypical
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.
ShareTypical
United States
36%43%
India
29%6.9%
France
3.3%4.6%
United Kingdom
3.1%6.4%
Germany
2.8%4.4%
Taiwan
2.6%0.2%
Companies in 55 countries and territories. Shares are of companies with a known headquarters country.
Show the data
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.
TeamCompanies
Engineering
6
R&D
4
Product development
3
Software development
3
Automated products division
2
Data center power & control division
2
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%.
Share of the 171 8051 companies counted here whose job posts also name the tool
Typical for companies the same size
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.
RoleSharePosts
Embedded Engineer
19%20
Firmware Engineer
15%16
Chip Designer
11%12
Software Engineer
8.6%9
Electrical Engineer
6.7%7
Learning & Development
4.8%5
Show the data
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
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.
