Tools · business telephony

Companies using 3CX_

As of 4 November 2026, 106 companies name 3CX in their own job postings; it leaves no trace on websites or in DNS.

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Largest market
–
Companies with 51+ staff
–
Top industry
–
Team that names it most
IT operations & business systems · 122 postings
Hiring on it, last 30 days
105 companies
Most often alongside
Microsoft Windows · 45 companies
106companies show 3CX, all sources
0on their website or in DNS records
106name it in their own job postings
166postings naming 3CX, last 90 days
02 — Two ways we see a tool

Where 3CX shows up

Each population is counted on its own. We never add them up without saying so, because they answer different questions.

Website and DNS footprint0

Companies whose own pages load 3CX's scripts or embeds, or whose domain's mail and hosting records (SPF, DKIM, MX, CNAME) point at 3CX. From our crawl of 41.5M company websites and the DNS sweep behind it. Reach: the tool is in the building.

Job postings106

Companies whose own postings say the team works in 3CX. Read hourly from ~70 applicant tracking systems, with the function, a quote and a date. Intent: the team that runs it is hiring.

Both0

Companies in the footprint whose postings also name 3CX. The rest of the posting population (106) runs 3CX without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on 3CX

Companies with 51+ employees and at least medium-confidence evidence in their own postings; job boards and portals left out.

H3A LeadsLead generation services · Roubaix, MA51-200 employeesJubilee MinistriesChristian ministries & missions · Lebanon, United States51-200 employeesTPO - The Private OfficeIndependent financial advisers · Leeds, United Kingdom501-1000 employeesKent Moore CabinetsCustom furniture makers · 501-1000 employeesD2NAgricultural inputs distribution · Le Teilleul, France51-200 employeesETAVISElectrical contractors · Zürich 1, Switzerland1001-5000 employeesMarble Medical CenterMultispecialty medical clinic · Lusail, QA201-500 employeesEFROSManaged cybersecurity services · Sheridan, United States2-10 employeesDeux Fleuves Rhône HabitatHousing associations · Brignais, France201-500 employeesTototheo GlobalIt & telecoms provider · Bremen, United States51-200 employeesSNA Event ProductionsEvent agencies · Westwood, United States201-500 employeesBIHRMotorcycle parts retail · 501-1000 employeesfaigleGeneral plastics processing · Hard, Austria201-500 employeesMarkonManaged cybersecurity services · Falls Church, United States201-500 employeesSubaru of Indiana Automotive (SIA)Vehicle component OEM suppliers · Lafayette, United States5001-10000 employeesInTalent AsiaGeneralist recruitment agencies · Asia, LK1001-5000 employeesHowdenInsurance companies underwriters · London, United Kingdom201-500 employeesEnergieanlagen Ramonat GmbHElectrical contractors · Magdeburg, Germany51-200 employeesGentaskVirtual assistant services · United States51-200 employeesHispaSatSatellite communications operators · Spain201-500 employees
106 companies show 3CX; 0 of them have over 1,000 employees.

Filter by country, size, team and source, open verified e-mails for the decision makers, or push new matches to your CRM every week.

Free plan: 1,000 records, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

06 — Job-posting evidence

Who runs 3CX inside the company

The 106 companies whose postings name 3CX: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
IT operations & business systems
122 · 98
Customer service & success
33 · 24
Sales
10 · 3
skilled trades and field service
8 · 7
Administration & office
7 · 7
Software engineering
7 · 5
Business development & strategy
5 · 3
Engineering (non-software)
4 · 3
Legal, compliance & risk
3 · 3
Finance & accounting
2 · 2
Posting companies by country
companiesshare
United States
3230%
United Kingdom
1716%
Germany
1312%
Switzerland
77%
Australia
66%
Belgium
55%
France
44%
Spain
33%
Austria
22%
Netherlands
22%
BM
11%
Canada
11%
Posting companies by size
companiesshare
Self-employed
11%
2-10 employees
1716%
11-50 employees
2927%
51-200 employees
2322%
201-500 employees
1817%
501-1000 employees
55%
1001-5000 employees
98%
5001-10000 employees
11%
10,001+ employees
33%
Hiring on it right now
postings
Postings, last 30 days
135
Postings, last 90 days
166
All open postings
242

105 companies opened a role that names 3CX in the last 30 days. A hiring team that names its tools is the moment to write to the person who owns the stack.

07 — Named alongside

What 3CX teams also ask for

Tools named in the same postings as 3CX. Office software is left out.

08 — business telephony

3CX against the rest of its category

Ranked by companies naming each tool in postings. Whole category →

Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

106 companies name 3CX in their own job postings; it leaves no trace on websites or in DNS, so the posting layer is the whole picture. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/3cx)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Website codeScripts, tags and embeds found on the company's own pages in our crawl of 41.5M sites. A tool counts once per company.
  • DNS recordsSPF includes, DKIM selectors, MX and CNAME records of the company's domain that point at 3CX or another vendor. Swept in cycles; dedicated mail-provider and hosting facets open once coverage passes 80% per country.
  • Job postingsRead hourly from the applicant tracking systems behind company career sites. A tool counts when the employer's own text names it as the team's system; candidate wish-lists and apply boilerplate are excluded. Confidence low, medium or high per company.
  • Sending infrastructureCold-e-mail sending domains are look-alike domains on a provider's infrastructure (DNS records, certificate logs) that redirect to the company. Absence is not evidence: only companies with a found sending domain are counted.
  • CompaniesCountry, size and industry come from the company profile we build from its website; headcount from LinkedIn where known, otherwise estimated. Job boards, portals and aggregators are kept out of lists.
FAQ

3CX data: questions

How many companies use 3CX?

106 as of 4 November 2026: 0 carry 3CX on their website or in their DNS records and 106 name it in their own job postings; 0 show up in both. We keep the two counts apart because they measure different things.

What does "website or DNS" mean?

Our crawler finds 3CX's scripts, embeds and tags on the company's own pages, and our DNS sweep reads the domain's mail and hosting records (SPF includes, DKIM selectors, MX, CNAMEs) that point at 3CX. Either one puts the company in the footprint. The sweep is still running, so this number grows week by week.

Why is the job-posting number so much smaller?

A posting only names a tool when the team that will use it is hiring and chooses to say so. That makes it a smaller but stronger signal: it tells you which team runs 3CX, with a quote and a date. The footprint tells you reach.

How fresh is this?

Career sites are read hourly, websites are re-crawled on a rolling schedule and DNS is re-swept in cycles. The date at the top is when these counts were computed.

Can I get the list?

Yes. The first 20 are on this page; the full 106 with verified e-mails and a weekly feed of new 3CX users is in the product. Counting is free.

Companies and people

Get this list your way

The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.

Every company on 3CX,
with the person who owns it

Connect the MCP server or the API, filter on 3CX, and get 1,000 records free.

  1. 01Sign up, no card
  2. 02Connect Claude, ChatGPT or an API key
  3. 03Ask for your market, 1,000 records free