Tools · unit testing frameworks

Companies using MSTest_

As of 4 November 2026, 151 companies name MSTest 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
Software engineering · 365 postings
Hiring on it, last 30 days
124 companies
Most often alongside
C# · 211 companies
151companies show MSTest, all sources
0on their website or in DNS records
151name it in their own job postings
247postings naming MSTest, last 90 days
02 — Two ways we see a tool

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

Job postings151

Companies whose own postings say the team works in MSTest. 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 MSTest. The rest of the posting population (151) runs MSTest without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on MSTest

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

BECUCredit unions · Seattle, United States1001-5000 employeesBaxterMedical device manufacturers · 10,001+ employeesCivicaGovtech public sector software · United States5001-10000 employeesCISCustom software development agencies · San Jose, United States1001-5000 employeesEurofinsTesting laboratories · Ireland10,001+ employeesBanner LifeInsurance companies underwriters · United States501-1000 employeesEuromonitorMarket research providers · United Kingdom1001-5000 employeesBaxter HealthcareMedical device manufacturers · Australia501-1000 employeesChristie DigitalLED display & signage screen manufacturers · Kitchener Central, United States1001-5000 employeeseLENDMortgage & property finance · Parsippany, United States501-1000 employeesTech9Custom software development agencies · Lehi, United States51-200 employeesKoniag Government ServicesPublic sector consulting · United States1001-5000 employeesRICEFWIT services & consulting · United States51-200 employeesBoeingAircraft manufacturers · United States10,001+ employeesVictraConsumer electronics appliance webshops · Raleigh, United States5001-10000 employeesLPL FinancialWealth management general · United States5001-10000 employeesAprioSME accounting tax practice · Atlanta, United States1001-5000 employeesMeU SolutionsCustom software development agencies · Tân An, VN51-200 employeesNEC Software SolutionsGovtech public sector software · Gaddesden Row, United Kingdom5001-10000 employeesTradeStationOnline trading platforms · Las Vegas, United States501-1000 employees
151 companies show MSTest; 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 MSTest inside the company

The 151 companies whose postings name MSTest: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
Software engineering
365 · 221
IT operations & business systems
6 · 5
Engineering (non-software)
5 · 4
Customer service & success
3 · 1
Data & AI
3 · 2
Quality, safety & environment
3 · 2
Business development & strategy
1 · 1
Education & training
1 · 1
Finance & accounting
1 · 1
Posting companies by country
companiesshare
United States
9261%
United Kingdom
96%
India
64%
Australia
53%
Germany
32%
France
32%
Sweden
32%
Belgium
21%
Brazil
21%
Canada
21%
Japan
21%
Netherlands
21%
Posting companies by size
companiesshare
Self-employed
53%
2-10 employees
32%
11-50 employees
2013%
51-200 employees
3121%
201-500 employees
2114%
501-1000 employees
1510%
1001-5000 employees
2819%
5001-10000 employees
128%
10,001+ employees
1611%
Hiring on it right now
postings
Postings, last 30 days
194
Postings, last 90 days
247
All open postings
405

124 companies opened a role that names MSTest 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 MSTest teams also ask for

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

08 — unit testing frameworks

MSTest 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.

151 companies name MSTest 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/mstest)
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 MSTest 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

MSTest data: questions

How many companies use MSTest?

151 as of 4 November 2026: 0 carry MSTest on their website or in their DNS records and 151 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 MSTest'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 MSTest. 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 MSTest, 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 151 with verified e-mails and a weekly feed of new MSTest 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 MSTest,
with the person who owns it

Connect the MCP server or the API, filter on MSTest, 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