Tools · unit testing frameworks

Companies using RSpec_

As of 4 November 2026, 148 companies name RSpec 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 · 254 postings
Hiring on it, last 30 days
98 companies
Most often alongside
Ruby on Rails · 176 companies
148companies show RSpec, all sources
0on their website or in DNS records
148name it in their own job postings
172postings naming RSpec, last 90 days
02 — Two ways we see a tool

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

Job postings148

Companies whose own postings say the team works in RSpec. 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 RSpec. The rest of the posting population (148) runs RSpec without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on RSpec

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

GreenhouseAI recruiting talent software · New York, United States501-1000 employeesInbox HealthHealthcare revenue cycle software · New Haven, United States51-200 employeesTrilogy CareHome care agencies · Bowen Hills, Australia201-500 employeesCreative ChaosAI automation agencies · United States201-500 employeesPosiTraceGPS fleet tracking telematics · Burnaby (Maywood / Marlborough / Oakalla / Windsor), United States51-200 employeesCentahCRM software · Downtown Toronto (CN Tower / King and Spadina / Railway Lands / Harbourfront West / Bathurst Quay / South Niagara / YTZ), United States51-200 employeesPaystoneGeneral payment service providers · London (Southcrest / East Westmount / West Highland), Canada51-200 employeesHealthieClinic practice management software · United States51-200 employeesiScale SolutionsBpo & call centre services · Makati CPO (Inc. Buendia Up To Edsa), PH501-1000 employeesSoftjournCustom software development agencies · United States201-500 employeesBIMM Music InstituteMusic schools · Hove, United Kingdom201-500 employeesVille de NiceMunicipal authorities & general public bodies · Nice, France1001-5000 employeesIG GroupWealth management general · United Kingdom1001-5000 employeesDrieamLearning management systems · Eindhoven, Netherlands51-200 employeesSkelloWorkforce scheduling software · Paris 03, France201-500 employeesSolutions for ScienceApplied AI ML development · United States51-200 employeesSensor TowerMarket research providers · San Francisco, United States201-500 employeesEducation AdvancedSchool management software · Tyler, United States51-200 employeesGitLabCybersecurity iam software · San Francisco, United States1001-5000 employeesMKS2 TechnologiesIT services & consulting · United States201-500 employees
148 companies show RSpec; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs RSpec inside the company

The 148 companies whose postings name RSpec: 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
254 · 177
Engineering (non-software)
4 · 4
IT operations & business systems
3 · 2
Data & AI
2 · 2
Product, program & project management
2 · 2
Design & UX
1 · 1
Marketing & communications
1 · 1
Quality, safety & environment
1 · 1
Posting companies by country
companiesshare
United States
8255%
United Kingdom
1510%
Canada
75%
France
64%
India
53%
Japan
53%
Brazil
32%
Netherlands
32%
PH
32%
Australia
21%
Germany
21%
Poland
21%
Posting companies by size
companiesshare
Self-employed
117%
2-10 employees
139%
11-50 employees
3725%
51-200 employees
3725%
201-500 employees
2014%
501-1000 employees
1510%
1001-5000 employees
128%
5001-10000 employees
11%
10,001+ employees
21%
Hiring on it right now
postings
Postings, last 30 days
130
Postings, last 90 days
172
All open postings
294

98 companies opened a role that names RSpec 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 RSpec teams also ask for

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

08 — unit testing frameworks

RSpec 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.

148 companies name RSpec 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/rspec)
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 RSpec 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

RSpec data: questions

How many companies use RSpec?

148 as of 4 November 2026: 0 carry RSpec on their website or in their DNS records and 148 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 RSpec'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 RSpec. 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 RSpec, 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 148 with verified e-mails and a weekly feed of new RSpec users is in the product. Counting is free.

Companies and people

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