Tools · iot platforms protocols

Companies using SPI_

As of 4 November 2026, 1,559 companies name SPI 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 · 3,015 postings
Hiring on it, last 30 days
1,197 companies
Most often alongside
I2C · 1,751 companies
1,559companies show SPI, all sources
0on their website or in DNS records
1,559name it in their own job postings
4,935postings naming SPI, last 90 days
02 — Two ways we see a tool

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

Job postings1,559

Companies whose own postings say the team works in SPI. 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 SPI. The rest of the posting population (1,559) runs SPI without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on SPI

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

VU Venture PartnersVenture capital firms · San Francisco, United States201-500 employeesGlobus MedicalMedical device manufacturers · San Diego, United States1001-5000 employeesInfineonSemiconductor manufacturers · United States10,001+ employeesFlosonics MedicalMedical device manufacturers · Greater Sudbury (Robinson / Lockerby), Canada51-200 employeesTürk-Alman ÜniversitesiUniversities · Türkiye201-500 employeesLYNREDSensor instrument manufacturers · Veurey-Voroize, United States1001-5000 employeesAssetWatchFacility maintenance management software · Dublin, United States51-200 employeesUDIT, Universidad de Diseño, Innovación y TecnologíaUniversities · Madrid, Spain201-500 employeesZimmer BiometMedical device manufacturers · Warsaw, United States10,001+ employeesBaykarDefence systems manufacturers · United States1001-5000 employeesPenn StateUniversities · United States10,001+ employeesInsuletMedical device manufacturers · United States1001-5000 employeesMicrochip Technology Inc.Semiconductor manufacturers · Chandler, United States10,001+ employeesEVgoEV charging installers · Franklin, United States201-500 employeesOur Next Energy (ONE)Battery & energy storage manufacturers · Novi, United States201-500 employeesBasler ElectricElectrical equipment manufacturers · Highland, United States501-1000 employeesSunlight GroupBattery & energy storage manufacturers · United States1001-5000 employeesElroy AirUav aerospace manufacturers · Byron, United States51-200 employeesSouthern StatesElectrical equipment manufacturers · United States201-500 employeesFutekSensor instrument manufacturers · Irvine, United States51-200 employees
1,559 companies show SPI; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs SPI inside the company

The 1,559 companies whose postings name SPI: 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
3,015 · 1,269
Engineering (non-software)
2,701 · 1,029
IT operations & business systems
107 · 68
Sales
52 · 29
Quality, safety & environment
37 · 19
manufacturing and production
25 · 18
hospitality and food service
23 · 1
Product, program & project management
20 · 16
skilled trades and field service
20 · 15
Data & AI
19 · 15
Posting companies by country
companiesshare
United States
93660%
Germany
886%
United Kingdom
805%
India
604%
France
413%
Canada
382%
Sweden
262%
Spain
211%
Netherlands
201%
Poland
201%
Switzerland
131%
Italy
131%
Posting companies by size
companiesshare
Self-employed
322%
2-10 employees
18912%
11-50 employees
25716%
51-200 employees
35823%
201-500 employees
21414%
501-1000 employees
1137%
1001-5000 employees
18312%
5001-10000 employees
614%
10,001+ employees
15210%
Hiring on it right now
postings
Postings, last 30 days
3,336
Postings, last 90 days
4,935
All open postings
6,617

1,197 companies opened a role that names SPI 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 SPI teams also ask for

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

08 — iot platforms protocols

SPI 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.

1,559 companies name SPI 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/spi-bus)
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 SPI 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

SPI data: questions

How many companies use SPI?

1,559 as of 4 November 2026: 0 carry SPI on their website or in their DNS records and 1,559 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 SPI'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 SPI. 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 SPI, 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 1,559 with verified e-mails and a weekly feed of new SPI users is in the product. Counting is free.

Companies and people

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