Tools · unit testing frameworks

Companies using Mock Service Worker_

As of 4 November 2026, 50 companies name Mock Service Worker 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
social care and community · 96 postings
Hiring on it, last 30 days
38 companies
Most often alongside
React · 29 companies
50companies show Mock Service Worker, all sources
0on their website or in DNS records
50name it in their own job postings
141postings naming Mock Service Worker, last 90 days
02 — Two ways we see a tool

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

Job postings50

Companies whose own postings say the team works in Mock Service Worker. 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 Mock Service Worker. The rest of the posting population (50) runs Mock Service Worker without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on Mock Service Worker

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

AND DigitalCustom software development agencies · Birmingham, United Kingdom1001-5000 employeesBenifexHR management software · Southampton, United Kingdom501-1000 employeesAcorn InsuranceInsurance companies underwriters · Formby, United Kingdom1001-5000 employeesESL FACEIT GROUPCompetitive sports clubs · Köln, Germany1001-5000 employeesOcientAI agent automation platforms · Chicago, United States51-200 employeesNordnetRetail investment brokerages · Stockholm, Sweden501-1000 employeesAustralian Institute of Management (AIM)Corporate workplace training · Haymarket, Australia201-500 employeesLänsförsäkringar StockholmGeneral insurance brokerage · Stockholm, Sweden5001-10000 employeesMirantisCloud hosting & paas platforms · Campbell, United States501-1000 employeesASM ResearchIT services & consulting · Arlington, United States1001-5000 employeesParloaAI agent automation platforms · Berlin, Germany201-500 employeesVelocitor SolutionsFleet & route management software · Charlotte, United States201-500 employeesadjoeAd serving & adtech platforms · United States51-200 employeesPrenuvoDiagnostic imaging radiology · Atlanta, United States51-200 employeesGoldschmitt and AssociatesIT consulting advisory · Sterling, United States201-500 employeesDeejay Coconut FarmSeed producers · Bangalore Sub Foreign Post, India201-500 employeesEnergy AspectsMarket research providers · Canary Wharf, United Kingdom201-500 employeesVyncaDigital health platforms · United States51-200 employeesHolly PoultryMeat wholesalers · Baltimore, United States51-200 employeesKIPP Public SchoolsComprehensive all through schools · United States51-200 employees
50 companies show Mock Service Worker; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs Mock Service Worker inside the company

The 50 companies whose postings name Mock Service Worker: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
social care and community
96 · 9
Software engineering
38 · 28
healthcare clinical
10 · 2
Human resources
7 · 3
Data & AI
3 · 2
Engineering (non-software)
3 · 2
construction and civil
1 · 1
Education & training
1 · 1
Finance & accounting
1 · 1
Sales
1 · 1
Posting companies by country
companiesshare
United States
3162%
United Kingdom
612%
Germany
48%
India
48%
Sweden
24%
Austria
12%
Australia
12%
Japan
12%
Posting companies by size
companiesshare
Self-employed
24%
2-10 employees
12%
11-50 employees
612%
51-200 employees
1224%
201-500 employees
918%
501-1000 employees
612%
1001-5000 employees
612%
5001-10000 employees
24%
10,001+ employees
612%
Hiring on it right now
postings
Postings, last 30 days
80
Postings, last 90 days
141
All open postings
172

38 companies opened a role that names Mock Service Worker 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 Mock Service Worker teams also ask for

Tools named in the same postings as Mock Service Worker. Office software is left out.

08 — unit testing frameworks

Mock Service Worker 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.

50 companies name Mock Service Worker 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/mock-service-worker)
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 Mock Service Worker 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

Mock Service Worker data: questions

How many companies use Mock Service Worker?

50 as of 4 November 2026: 0 carry Mock Service Worker on their website or in their DNS records and 50 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 Mock Service Worker'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 Mock Service Worker. 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 Mock Service Worker, 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 50 with verified e-mails and a weekly feed of new Mock Service Worker users is in the product. Counting is free.

Companies and people

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Every company on Mock Service Worker,
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