2,319 companies name GSM in their own job posts. Its share of job posts is shrinking, though 2,181 job posts still named it from October 2025 to August 2026. Skilled Trades roles mention it most.
Among the companies with the most job posts naming GSM are Apple (938), Ericsson (694) and Vodafone (523). 1GLOBAL is the newest of the five companies in the table, with its first job post naming it in September 2023.
CompanyPostsPeopleRecent job post
AppleScientific and Technical Services · first seen Sep 20229381,326
"…candidate needs to have strong RF test/certification experience in BT/WLAN/NFC/UWB/WPT/GSM/UMTS/ LTE/5G/MSS.","responsibilities":"Manage/engage external ministries/regulators/certification…"Regional Regulatory Compliance Engineer, Oct 2, 2026
EricssonInformation · first seen Sep 202269418,152
"The candidate should have high level Network Topology skills (GSM, WCDMA, LTE, IT, etc)."incident manager, Nov 4, 2026
VodafoneInformation · first seen Oct 20225234,719
"Basic system and GSM knowledge (Essential)"specialist lea, Sep 19, 2026
NokiaInformation · first seen Sep 202213116,404
"Knowledge of GSM, UMTS, LTE and 5G networks is an advantage."fault management l2 engineer - oss, Sep 15, 2026
1GLOBALfirst seen Sep 202310367
"Proven experience on implementation of live solutions on mobile telecom (GSM, UMTS, LTE, IMS), networks design, capacity management, engineering and architecture"Voice and Services Engineer (Lisbon based), Nov 1, 2026
A smaller share of job posts mentioned GSM from June to August 2026 than from March to May: 0.99 in every 10,000 job posts, down from 1.2. Its busiest month was October 2025, at 1.4.
Show the data
Month
Job posts naming GSM
All job posts
Per 10,000
Oct 2025
194
1,413,673
1.4
Nov 2025
218
1,822,119
1.2
Dec 2025
152
1,236,103
1.2
Jan 2026
244
1,828,002
1.3
Feb 2026
199
1,856,647
1.1
Mar 2026
213
1,850,711
1.2
Apr 2026
193
1,728,886
1.1
May 2026
218
1,821,509
1.2
Jun 2026
213
1,909,496
1.1
Jul 2026
174
1,815,180
0.96
Aug 2026
163
1,835,698
0.89
How many companies named GSM in a job post for the first time in recent months?
Job posts named GSM for the first time at 66 companies from June to August 2026, against 76 from March to May. Over the 11 months from October 2025, 252 companies posted their first job naming it.
March to May 202676
June to August 202666
October 2025 to August 2026252
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 GSM?
97% of the companies here are known from employees' profiles alone, and 3.2% name GSM in their own job posts. 1,184 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name GSM
2,3193.2%
Employees' profiles list GSM
69,89697%
72,215 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use GSM?
Companies with fewer than 50 employees are 1.3 times as common among GSM users as on the typical tech page. 356 of its companies have more than 5,000 employees. These counts cover the 2,319 companies whose job posts name it.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
34%26%
50 to 999
38%37%
1,000 to 5,000
13%15%
Over 5,000
15%22%
Where are GSM companies based?
The United States has the most GSM companies (28%), but France stands out: 9.8% of them, against 5% on the typical tech page. Its companies are based in 77 countries and territories. These shares cover the 2,319 companies whose job posts name it.
ShareTypical
United States
28%48%
India
14%7.5%
France
9.8%5%
United Kingdom
5.3%6.3%
Germany
4.3%4.4%
Belgium
2.8%0.79%
Companies in 77 countries and territories. Shares are of companies with a known headquarters country. Counts companies whose job posts name it.
Show the data
Country
Companies
Share
Typical tech page
United States
608
28%
48%
India
307
14%
7.5%
France
209
9.8%
5%
United Kingdom
114
5.3%
6.3%
Germany
91
4.3%
4.4%
Belgium
59
2.8%
0.79%
Which teams work with GSM?
Job posts most often place GSM with engineering, R&D and IT teams. Operations teams come fourth, at 14 companies.
TeamCompanies
Engineering
25
R&D
19
IT
17
Operations
14
NOC
10
Sales
9
What else do GSM companies use?
UMTS and CDMA are the tools most closely tied to GSM. Among the tools listed here, LTE is the most widely used, at 43% of GSM companies.
Share of the 1,601 GSM companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming GSM in job posts recently?
From April to August 2026, 67 companies with 50 or more employees posted their first job naming GSM: 40 commercial, 14 mid-market and 13 enterprise. Teltonika leads the new mid-market companies, with 5 job posts from April to August.
Companies that named GSM 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 GSM most?
Skilled Trades job posts naming GSM grew the fastest among its top roles: 46 from June to August 2026, up from 29 from March to May. The top four roles cover 21% of these job posts.
RoleSharePosts
Skilled Trades
6.5%141
Telecommunications Engineer
5.8%126
Electrical Engineer
4.4%96
Software Development Engineer in Test
4.1%90
Customer Engineer
4.1%89
Software Engineer
3.9%85
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Skilled Trades
6.5%
141
29
46
Telecommunications Engineer
5.8%
126
44
26
Electrical Engineer
4.4%
96
32
19
Software Development Engineer in Test
4.1%
90
25
27
Customer Engineer
4.1%
89
17
15
Software Engineer
3.9%
85
21
19
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.
