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Companies using UART

We found 13,266 companies that use UART. 9,806 of them name it in their own job posts, and the rest through employees' public profiles. Hiring for it is steady, with 14,974 job posts naming it from October 2025 to August 2026. R&D teams are its most common home.

Data as of November 9, 2026 · Markdown version

Which companies name UART in the most job posts?

The five companies with the most job posts naming UART are Apple, Amazon, Analog Devices, Altran and Qualcomm. Three of these five companies are in Scientific and Technical Services.
Company Posts People Recent job post
Apple Scientific and Technical Services · first seen Jul 2022 1,619 125 "Understanding of communication protocols and interfaces common in embedded systems (I2C, SPI, UART, CAN, etc.) together with HW debugging tools (logic analyzer)"DevOps Engineer for Embedded Systems - Q, Nov 7, 2026
Amazon Retail Trade · first seen Jul 2022 515 55 "Implement and optimize peripheral drivers: SPI, I²C, UART, GPIO, ADC/DAC, PWM"Software Development Engineer II, Alexa Connectivity Devices, Nov 5, 2026
Analog Devices Scientific and Technical Services · first seen Sep 2022 513 42 "Broad understanding of digital communication interfaces such as I2C, SPI, and UART etc."Embedded Software Engineering Intern, Nov 3, 2026
Altran Professional Services · first seen Sep 2022 467 67 "Develop and debug low-level drivers and interfaces such as SPI, I2C, UART, ADC, PWM, DMA, Timers, and Interrupts."Embedded C Firmware Developer, Nov 5, 2026
Qualcomm Scientific and Technical Services · first seen Sep 2022 438 288 "Extensive experience with Device Driver development on embedded systems (e.g., I2C, SPI, UART, USB, PCIe)."linux kernel engineer, Nov 7, 2026
Showing 1 to 5 of 9,806 companies with job posts Sign up to see all companies using UART ›

What else do we know about UART?

Is hiring for UART growing?

Demand for UART is steady: 8.5 in every 10,000 job posts from June to August 2026, close to the 8.4 of March to May. Its busiest month was April 2026, at 9.1.
Share of job posts naming UART by month, October 2025 to August 2026, in job posts in every 10,000 Moves from 6.3 in October 2025 to 8.6 in August 2026, in job posts in every 10,000. 10 7.8 5.2 2.6 0 8.6 Oct '25 Nov Dec Jan '26 Feb Mar Apr May Jun Jul Aug
Show the data
MonthJob posts naming UARTAll job postsPer 10,000
Oct 20258881,413,6736.3
Nov 20251,3151,822,1197.2
Dec 20258071,236,1036.5
Jan 20261,3221,828,0027.2
Feb 20261,3781,856,6477.4
Mar 20261,4251,850,7117.7
Apr 20261,5671,728,8869.1
May 20261,5261,821,5098.4
Jun 20261,6681,909,4968.7
Jul 20261,4981,815,1808.3
Aug 20261,5801,835,6988.6

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

635 companies named UART in a job post for the first time from June to August 2026, against 583 from March to May. Of the 9,806 companies whose job posts name it, 6.5% first named it from June to August.
March to May 2026 583
June to August 2026 635
October 2025 to August 2026 2,019

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 UART?

9,806 of the 13,266 companies name UART in their own job posts. 1,500 show up in both job posts and employees' profiles.
How we know Companies Share
Job posts name UART
9,806 74%
Employees' profiles list UART
3,460 26%

13,266 companies. Each is counted once, under the strongest evidence we have for it.

What size are the companies that use UART?

UART skews toward smaller firms. 42% of its users are companies with fewer than 50 employees, against 22% on the typical tech page. The second-largest group is companies with 50 to 999 employees, at 41%.

Share of its companies Typical tech page

ShareTypical
Under 50 employees
42% 22%
50 to 999
41% 38%
1,000 to 5,000
9.5% 17%
Over 5,000
7.3% 23%

Where are UART companies based?

India is 2.5 times as common among UART companies as on the typical tech page, at 17%. The United States leads overall with 34%. Its companies are based in 99 countries and territories.
ShareTypical
United States
34% 43%
India
17% 6.9%
Germany
4.9% 4.4%
United Kingdom
4.4% 6.4%
France
4.2% 4.6%
Canada
3.7% 3.6%

Companies in 99 countries and territories. Shares are of companies with a known headquarters country.

Show the data
CountryCompaniesShareTypical tech page
United States4,17934%43%
India2,11617%6.9%
Germany6124.9%4.4%
United Kingdom5474.4%6.4%
France5274.2%4.6%
Canada4543.7%3.6%

Which teams work with UART?

R&D is the team named most often in UART job posts, at 321 companies.
Team Companies
R&D
321
Engineering
240
Firmware
115
Hardware
115
Software
96
Product development
88

What else do UART companies use?

86% of UART companies also use I2C, against 1.3% of similar companies. Next is SPI: 93% of these companies use it, against 1.4% of similar ones.

Share of the 8,010 UART companies counted here whose job posts also name the tool Typical for companies the same size

Tool Also name it Typical Times as common
I2C 6,894 companies
86% 1.3% 68x
SPI 7,419 companies
93% 1.4% 65x
ARM Cortex 434 companies
5.4% 0.1% 57x
STM32 2,024 companies
25% 0.46% 55x
Tool Also name it Typical Times as common
FreeRTOS 1,984 companies
25% 0.46% 53x
MIPI 490 companies
6.1% 0.12% 52x
LVDS 457 companies
5.7% 0.12% 49x
ESP32 1,038 companies
13% 0.27% 48x

Which companies started naming UART in job posts recently?

From April to August 2026, 420 companies with 50 or more employees posted their first job naming UART: 319 commercial, 74 mid-market and 27 enterprise. Another 15 were AI-native companies, which we list separately.
AI native any size · 15 new
Company Posts
Dexmate 3
iLOF 3
FieldAI 2
Scry AI 2
Bespoke Labs 2
Commercial 50 to 999 employees · 319 new
Company Posts
Agile Robots SE 9
Royce Geo 6
Spectra Defense Technologies 6
Nuvoton Technology Corporation 5
Tracsis 5
Mid-market 1,000 to 5,000 employees · 74 new
Company Posts
Intellias 20
ACV Auctions 9
Socomec Group 6
Entrust 4
TGW Logistics 4
Enterprise over 5,000 employees · 27 new
Company Posts
AUMOVIO 9
LG Electronics 8
Sopra Steria 4
Stripe 4
JPMorganChase 2

Companies that named UART 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 UART most?

Embedded Engineer is the most common role, in 22% of job posts naming UART. Embedded Engineer posts naming it numbered 897 from March to May 2026 and 994 from June to August.
Role Share Posts
Embedded Engineer
22% 3,261
Firmware Engineer
18% 2,676
Hardware Engineer
11% 1,660
Software Engineer
9.4% 1,405
Electrical Engineer
7.4% 1,110
Software Development Engineer in Test
3.9% 590
Show the data
RoleShareOct 2025 to Aug 2026Mar to May 2026Jun to Aug 2026
Embedded Engineer22%3,261897994
Firmware Engineer18%2,676765769
Hardware Engineer11%1,660500531
Software Engineer9.4%1,405412413
Electrical Engineer7.4%1,110323391
Software Development Engineer in Test3.9%590176168
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.