# Companies using XCAL

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.

Data as of November 9, 2026. Source: Sumble.

## Which companies name XCAL in the most 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.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [TeleWorld Solutions](https://sumble.com/orgs/teleworld-solutions) | 137 | 17 | "Utilize advanced testing tools such as XCAL, QXDM, Wireshark, channel emulators, spectrum analyzers, and signal generators" (ran test engineer - 4g/5g, Oct 14, 2026) |
| [Verizon](https://sumble.com/orgs/verizon) | 38 | 23 | "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 LLC](https://sumble.com/orgs/synapsiq) | 37 | 1 | "Ability to use tools like XCAL/NEMO/TEMS/AZQ/MAPINFO Tools" (RF Drive Test Engineer, Sep 11, 2025) |
| [Samsung Electronics](https://sumble.com/orgs/samsung-electronics) | 34 | 12 | "WindCatcher, XCAL, XCAP-M, etc., with a good understanding of OTA signaling messages" (field testing engineer, Sep 17, 2025) |
| [Nokia](https://sumble.com/orgs/nokia) | 26 | 54 | "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) |

## Is hiring for XCAL growing?

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.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| 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.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 2 |
| June to August 2026 | 5 |
| October 2025 to August 2026 | 15 |

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 know | Companies | Share |
|---|---:|---:|
| Job posts name XCAL | 190 | 24% |
| Employees' profiles list XCAL | 609 | 76% |

## 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.

| Size | Share | Typical tech page |
|---|---:|---:|
| 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.

| 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% |

## 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.

| 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 |

## Which companies started naming XCAL in job posts recently?

Between April and August 2026, XCAL appeared for the first time in job posts at 4 companies: 3 commercial and 1 enterprise.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Parallel Wireless](https://sumble.com/orgs/parallel-wireless) | 1 |
| Commercial | [Intone Networks Inc](https://sumble.com/orgs/intone-networks) | 1 |
| Commercial | [NITYA Software Solutions Inc](https://sumble.com/orgs/nitya-software-solutions) | 1 |

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.

## 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.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Windcatcher | 13 | 16% | under 0.01% | 2089 times |
| QXDM | 52 | 64% | 0.05% | 1306 times |
| Actix | 27 | 33% | 0.04% | 918 times |
| TEMS | 44 | 54% | 0.08% | 697 times |
| iBwave | 24 | 30% | 0.08% | 352 times |
| CDMA | 25 | 31% | 0.09% | 336 times |
| UMTS | 25 | 31% | 0.12% | 251 times |
| Commscope | 10 | 12% | 0.06% | 208 times |

Shares are out of the 81 companies whose job posts name XCAL, not counting firms whose job posts name almost every technology.

## 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.