Tools · compute processors

Companies using PCI Express_

As of 4 November 2026, 597 companies name PCI Express 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
Engineering (non-software) · 3,851 postings
Hiring on it, last 30 days
508 companies
Most often alongside
Ethernet · 474 companies
597companies show PCI Express, all sources
0on their website or in DNS records
597name it in their own job postings
5,382postings naming PCI Express, last 90 days
02 — Two ways we see a tool

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

Job postings597

Companies whose own postings say the team works in PCI Express. 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 PCI Express. The rest of the posting population (597) runs PCI Express without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on PCI Express

Companies with 201+ employees and high-confidence evidence in their own postings; job boards and portals left out.

Mercury SystemsDefence systems manufacturers · Andover, United States1001-5000 employeesIntuitiveMedical device manufacturers · Sunnyvale, United Kingdom10,001+ employeesRelativity SpaceSpace systems manufacturers · 1001-5000 employeesSpaceXSpace systems manufacturers · United States1001-5000 employeesIndra GroupDefence systems manufacturers · Alcobendas, Spain10,001+ employeesKNDS FRANCEDefence systems manufacturers · France1001-5000 employeesCanon Production PrintingPrinting & converting machinery manufacturers · United States1001-5000 employeesAGCO CorporationAgricultural machinery manufacturers · Duluth, United States10,001+ employeesBlue OriginSpace systems manufacturers · Kirkland, United States10,001+ employeesBoeingAircraft manufacturers · United States10,001+ employeesOPSWATManaged cybersecurity services · Tampa, United States501-1000 employeesThermo Fisher ScientificLab & test instrument distributors · United States10,001+ employeesRTXDefence systems manufacturers · Arlington, United States10,001+ employeesJ.F. Taylor, Inc.Defence systems manufacturers · Great Mills, United States201-500 employeesKochFamily holdings · Wichita, United States10,001+ employeesCohuSemiconductor manufacturers · San Diego, United States1001-5000 employeesOracleCloud hosting & paas platforms · United States10,001+ employeesMercedes-BenzPassenger car & light truck manufacturers · United States10,001+ employeesGeneral MotorsPassenger car & light truck manufacturers · Detroit, United States10,001+ employeesSchréderLED luminaire manufacturers · Rocourt, Belgium1001-5000 employees
597 companies show PCI Express; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs PCI Express inside the company

The 597 companies whose postings name PCI Express: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
Engineering (non-software)
3,851 · 608
Software engineering
1,443 · 335
IT operations & business systems
193 · 74
Sales
152 · 50
Product, program & project management
91 · 31
Quality, safety & environment
59 · 21
Data & AI
49 · 24
Design & UX
33 · 6
Business development & strategy
17 · 11
Unclassified
12 · 5
Posting companies by country
companiesshare
United States
42772%
United Kingdom
285%
India
183%
Germany
173%
France
173%
Canada
71%
Poland
71%
China
51%
Belgium
41%
Spain
41%
Singapore
41%
Australia
31%
Posting companies by size
companiesshare
Self-employed
183%
2-10 employees
7112%
11-50 employees
9316%
51-200 employees
11419%
201-500 employees
8214%
501-1000 employees
488%
1001-5000 employees
6210%
5001-10000 employees
285%
10,001+ employees
8114%
Hiring on it right now
postings
Postings, last 30 days
3,513
Postings, last 90 days
5,382
All open postings
6,763

508 companies opened a role that names PCI Express 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 PCI Express teams also ask for

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

08 — compute processors

PCI Express 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.

597 companies name PCI Express 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/pcie)
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 PCI Express 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

PCI Express data: questions

How many companies use PCI Express?

597 as of 4 November 2026: 0 carry PCI Express on their website or in their DNS records and 597 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 PCI Express'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 PCI Express. 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 PCI Express, 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 597 with verified e-mails and a weekly feed of new PCI Express users is in the product. Counting is free.

Companies and people

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Every company on PCI Express,
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