7,245 companies use ESP32, based on their job posts and their employees' public profiles. Its share of job posts jumped in the three months to August 2026, with 1,828 job posts naming it from October 2025 to August 2026. R&D teams are its most common home.
Among the companies with the most job posts naming ESP32 are Kickmaker (58), MikroStarTech (SMC-Pvt.) Ltd. (50) and BrightCHAMPS (38).
CompanyPostsPeopleRecent job post
KickmakerScientific and Technical Services · first seen Jul 2023581
"Développer des firmwares embarqué (STM32, ESP32, Nordic...) en C/C++"Senior Automation and Embedded Software Engineer (m/f), Oct 1, 2026
MikroStarTech (SMC-Pvt.) Ltd.Professional Services · first seen Jun 2023501
"Knowledge of MQTT, ESP32, Arduino IDE, MATLAB, I2C communication."Senior Embedded System Engineer, Jan 26, 2025
BrightCHAMPSHealth Care and Social Assistance · first seen Dec 2023380
"Must be able to teach Arduino, ESP32 and other microcontroller programming."Robotics STEM Educator(Day Shift/Night shift), Mar 12, 2026
DATOMSScientific and Technical Services · first seen Dec 2023352
"(ESP32/STM32), or automotive electronics."procurement manager, Oct 24, 2026
EatonManufacturing · first seen Jul 2023296
"Designing, coding, and testing firmware in C/C++, for various embedded platforms based on ARM architecture, NXP i.MX, STMicro, and ESP32."Electronics Engineer Specialist, Jun 16, 2026
Job posts mentioning ESP32 went from 0.90 to 1.2 in every 10,000 job posts, comparing March to May with June to August 2026. August 2026 was its highest month since October 2025, at 1.3.
Show the data
Month
Job posts naming ESP32
All job posts
Per 10,000
Oct 2025
116
1,413,673
0.82
Nov 2025
173
1,822,119
0.95
Dec 2025
113
1,236,103
0.91
Jan 2026
139
1,828,002
0.76
Feb 2026
139
1,856,647
0.75
Mar 2026
138
1,850,711
0.75
Apr 2026
173
1,728,886
1.0
May 2026
176
1,821,509
0.97
Jun 2026
198
1,909,496
1.0
Jul 2026
221
1,815,180
1.2
Aug 2026
242
1,835,698
1.3
How many companies named ESP32 in a job post for the first time in recent months?
From June to August 2026, 272 companies posted their first job naming ESP32; 202 did from March to May. Of the 2,624 companies whose job posts name it, 10% first named it from June to August.
March to May 2026202
June to August 2026272
October 2025 to August 2026791
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 ESP32?
4,621 of the 7,245 companies show up because employees list ESP32 on their profiles; 2,624 name it in their own job posts. 332 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name ESP32
2,62436%
Employees' profiles list ESP32
4,62164%
7,245 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use ESP32?
Companies with fewer than 50 employees are 1.8 times as common among ESP32 users as on the typical tech page. 801 of its companies have more than 5,000 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
38%22%
50 to 999
38%38%
1,000 to 5,000
12%17%
Over 5,000
11%23%
Where are ESP32 companies based?
ESP32 has an unusually large following in Brazil: 7.6% of its companies, against 2.8% on the typical tech page. The United Kingdom is less common than usual, at 3.7% against 6.4% on the typical tech page.
ShareTypical
United States
19%43%
India
18%6.9%
Brazil
7.6%2.8%
Germany
5%4.4%
France
4.5%4.6%
United Kingdom
3.7%6.4%
Companies in 109 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
1,348
19%
43%
India
1,223
18%
6.9%
Brazil
529
7.6%
2.8%
Germany
348
5%
4.4%
France
312
4.5%
4.6%
United Kingdom
254
3.7%
6.4%
Which teams work with ESP32?
Job posts for ESP32 point to R&D teams far more than any other, at 71 companies. Engineering and hardware teams come next, at 28 and 15 companies.
TeamCompanies
R&D
71
Engineering
28
Hardware
15
Product development
13
Embedded systems
12
Firmware
11
What else do ESP32 companies use?
The tool most tied to ESP32 is STM32. 51% of ESP32 companies use it, 120 times the usual rate for their size. ARM Cortex is 78 times as common as usual, at 6.9%.
Share of the 2,217 ESP32 companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming ESP32 in job posts recently?
From April to August 2026, 186 companies with 50 or more employees posted their first job naming ESP32: 122 commercial, 33 mid-market and 31 enterprise. Another 7 were AI-native companies, which we list separately.
Companies that named ESP32 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.
Which roles mention ESP32 most?
ESP32 is showing up in more Embedded Engineer job posts: 124 from June to August 2026, up from 81 from March to May. Firmware Engineer is second, at 16%.
RoleSharePosts
Embedded Engineer
20%367
Firmware Engineer
16%295
Electrical Engineer
8.5%155
Hardware Engineer
6.3%115
Software Engineer
6.1%111
Robotics Engineer
3.2%58
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Embedded Engineer
20%
367
81
124
Firmware Engineer
16%
295
78
106
Electrical Engineer
8.5%
155
40
43
Hardware Engineer
6.3%
115
36
35
Software Engineer
6.1%
111
29
34
Robotics Engineer
3.2%
58
9
22
Which project themes come up in ESP32 job posts?
Beyond general digital transformation, the most common project theme in ESP32 job posts is Generative AI (12 posts). Microservices Migration is next, in 9 job posts.
Project themeJob posts
Digital Transformation84
Generative AI12
Microservices Migration9
Cloud Cost Optimization3
"contributing to our new ESP32 based platform as it scales"
Tovala, firmware engineer, Oct 21, 2026
"Implement and optimize Large Language Models (LLMs), Computer Vision, and multimodal AI directly on embedded hardware (Jetson, ESP32, Mobile)"
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.
