Tools · data science libraries

Companies using Polars_

As of 4 November 2026, 219 companies name Polars 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
Data & AI · 324 postings
Hiring on it, last 30 days
177 companies
Most often alongside
pandas · 211 companies
219companies show Polars, all sources
0on their website or in DNS records
219name it in their own job postings
408postings naming Polars, last 90 days
02 — Two ways we see a tool

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

Job postings219

Companies whose own postings say the team works in Polars. 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 Polars. The rest of the posting population (219) runs Polars without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on Polars

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

WhiteBITCrypto exchanges · United States1001-5000 employeesDelairUav aerospace manufacturers · United States51-200 employeesNXP SemiconductorsSemiconductor manufacturers · Eindhoven, Netherlands10,001+ employeesAutorité de Sûreté Nucléaire et de Radioprotection - ASNRGovernment agencies & ministries · Montrouge, France1001-5000 employeesGuidewireWealth insurance advisor software · San Mateo, United States1001-5000 employeesNIQMarket research providers · Chicago, United States10,001+ employeesMultiBank GroupForex cfd brokers · United States501-1000 employeesHingeOnline dating platforms · 51-200 employeesSwiss ReInsurance companies underwriters · Switzerland10,001+ employeesCapital Fund ManagementOther wealth management investment · Paris 07, United States201-500 employeesBNP ParibasRetail & commercial banks · Downtown Montreal North, Canada501-1000 employeesAcrisureGeneral insurance brokerage · United States10,001+ employeesVatnSensor instrument manufacturers · United States51-200 employeesSolventumMedical device manufacturers · Eagan, United States10,001+ employeesFedExFreight forwarding & logistics · 10,001+ employeesBanco BTG Pactual S.A.Retail & commercial banks · 5001-10000 employeesIMC KremsUniversities · Krems an der Donau, Austria501-1000 employeesArtefactApplied AI ML development · United States1001-5000 employeesBMLLInvestment research services · London, United Kingdom51-200 employeesBright CapeData engineering & bi consultancies · Eindhoven, Netherlands51-200 employees
219 companies show Polars; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs Polars inside the company

The 219 companies whose postings name Polars: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
Data & AI
324 · 202
Software engineering
120 · 76
Finance & accounting
20 · 10
Unclassified
14 · 4
IT operations & business systems
9 · 6
Engineering (non-software)
5 · 4
General management & consulting
5 · 2
Customer service & success
2 · 1
research and science
2 · 2
hospitality and food service
1 · 1
Posting companies by country
companiesshare
United States
12557%
United Kingdom
2311%
France
105%
Germany
84%
Canada
52%
Switzerland
42%
Austria
31%
Australia
31%
Brazil
31%
Spain
31%
India
31%
Netherlands
31%
Posting companies by size
companiesshare
Self-employed
84%
2-10 employees
2511%
11-50 employees
2813%
51-200 employees
5023%
201-500 employees
2612%
501-1000 employees
2511%
1001-5000 employees
2813%
5001-10000 employees
94%
10,001+ employees
209%
Hiring on it right now
postings
Postings, last 30 days
262
Postings, last 90 days
408
All open postings
569

177 companies opened a role that names Polars 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 Polars teams also ask for

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

08 — data science libraries

Polars 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.

219 companies name Polars 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/polars)
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 Polars 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

Polars data: questions

How many companies use Polars?

219 as of 4 November 2026: 0 carry Polars on their website or in their DNS records and 219 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 Polars'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 Polars. 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 Polars, 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 219 with verified e-mails and a weekly feed of new Polars users is in the product. Counting is free.

Companies and people

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