799 companies use XCAL, based on their job posts and their employees' public profiles. 120 job posts named it from October 2025 to August 2026. It comes up most in Telecommunications Engineer job posts.
TeleWorld Solutions, Verizon and SynapsIQ LLC are among the companies with the most job posts naming XCAL. Of the five companies in the table, Nokia has the most employees who list it on their profiles: 54.
CompanyPostsPeopleRecent job post
TeleWorld SolutionsProfessional Services · first seen Sep 202213717
"Utilize advanced testing tools such as XCAL, QXDM, Wireshark, channel emulators, spectrum analyzers, and signal generators"ran test engineer - 4g/5g, Oct 14, 2026
VerizonInformation · first seen May 20233823
"Testing Programs: Scripting to automate monitoring of network performance QXDM, XCAL, Wireshark."Thurgood Marshall Immersion Program: Network Automation Summer Internship 2026, Oct 23, 2025
SynapsIQ LLCProfessional Services · first seen Nov 2022371
"Ability to use tools like XCAL/NEMO/TEMS/AZQ/MAPINFO Tools"RF Drive Test Engineer, Sep 11, 2025
Samsung ElectronicsManufacturing · first seen Oct 20223412
"WindCatcher, XCAL, XCAP-M, etc., with a good understanding of OTA signaling messages"field testing engineer, Sep 17, 2025
NokiaInformation · first seen Nov 20222654
"Ability to analyze EMIL, TTI Traces for quick troubleshooting and R&D analysis, along with exposure to logging tools (QXDM, XCAL, or equivalent)"Network Optimization Engineer, Apr 21, 2026
From March to May 2026, 0.06 in every 10,000 job posts named XCAL; from June to August, 0.04 in every 10,000 job posts. These are small numbers of job posts, so a few companies can move them.
Show the data
Month
Job posts naming XCAL
All job posts
Per 10,000
Oct 2025
9
1,413,673
0.06
Nov 2025
11
1,822,119
0.06
Dec 2025
11
1,236,103
0.09
Jan 2026
19
1,828,002
0.10
Feb 2026
17
1,856,647
0.09
Mar 2026
12
1,850,711
0.06
Apr 2026
8
1,728,886
0.05
May 2026
10
1,821,509
0.05
Jun 2026
8
1,909,496
0.04
Jul 2026
4
1,815,180
0.02
Aug 2026
11
1,835,698
0.06
How many companies named XCAL in a job post for the first time in recent months?
From June to August 2026, 5 companies posted their first job naming XCAL; 2 did from March to May. Over the 11 months from October 2025, 15 companies posted their first job naming it.
March to May 20262
June to August 20265
October 2025 to August 202615
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 XCAL?
Most of these companies come from employees' profiles: 76% have no job post naming XCAL. 190 name it in their own job posts.
How we knowCompaniesShare
Job posts name XCAL
19024%
Employees' profiles list XCAL
60976%
799 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use XCAL?
By size, XCAL users are close to the typical tech page; companies with 50 to 999 employees are the largest group (40%). 141 of its companies have fewer than 50 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
18%22%
50 to 999
40%38%
1,000 to 5,000
15%17%
Over 5,000
28%23%
Where are XCAL companies based?
The United States has the most XCAL companies (43%), but India stands out: 16% of them, against 6.9% on the typical tech page. Its companies are based in 59 countries and territories.
ShareTypical
United States
43%43%
India
16%6.9%
United Kingdom
4.9%6.4%
France
3.3%4.6%
Canada
2.8%3.6%
Spain
2.8%1.8%
Companies in 59 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
329
43%
43%
India
119
16%
6.9%
United Kingdom
37
4.9%
6.4%
France
25
3.3%
4.6%
Canada
21
2.8%
3.6%
Spain
21
2.8%
1.8%
What else do XCAL companies use?
Windcatcher, QXDM and Actix show up far more often at XCAL companies than at companies of the same size. Next is TEMS: 54% of these companies use it, against 0.08% of similar ones.
Share of the 81 XCAL companies counted here whose job posts also name the tool
Typical for companies the same size
Companies that named XCAL 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 XCAL most?
Telecommunications Engineer and Network Operations Engineer roles account for 22% of the job posts that name XCAL. The top four roles cover 40% of these job posts.
RoleSharePosts
Telecommunications Engineer
12%15
Network Operations Engineer
10%12
Test Engineer
10%12
Electrical Engineer
7.5%9
Systems Engineer
5.8%7
Automation Engineer
5%6
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Telecommunications Engineer
12%
15
4
3
Network Operations Engineer
10%
12
1
0
Test Engineer
10%
12
3
1
Electrical Engineer
7.5%
9
3
3
Systems Engineer
5.8%
7
1
2
Automation Engineer
5%
6
1
0
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.
