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Tools ·

Companies using onthe io

As of 5 November 2026, 143 companies carry onthe io on their website or in their DNS records; none names it in job postings yet.

As of 5 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Largest market
United States · 84 companies
Companies with 51+ staff
11 · 8% of the footprint
Top industry
Business & finance services · 42%
Team that names it most
–
Hiring on it, last 30 days
0 companies
Most often alongside
–
143companies show onthe io, all sources
143on their website or in DNS records
0name it in their own job postings
0postings naming onthe io, last 90 days
02Two ways we see a tool

Where onthe io 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 footprint143

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

Job postings0

Companies whose own postings say the team works in onthe io. 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 onthe io. The rest of the posting population (0) runs onthe io without a public trace on the site or in DNS, which is where job data earns its place.

03Who uses it

Companies on onthe io

No company names onthe io in its job postings with enough confidence to list yet; the companies below carry it on their website or in DNS.

143 companies show onthe io; 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.

Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

04Footprint breakdown

By country, company size and industry

The 143 companies with onthe io on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
8459%
United Kingdom
1410%
Australia
118%
Germany
64%
France
64%
United Arab Emirates
21%
Spain
21%
Italy
21%
Netherlands
21%
Portugal
21%
Singapore
21%
Argentina
11%
By company size
companiesshare
Self-employed
7552%
2-10 employees
3726%
11-50 employees
2014%
51-200 employees
118%
By industry
companiesshare
Business & finance services
6042%
Technology & software
4229%
Consumer services & leisure
1913%
Media & content
75%
Property & construction
64%
Commerce & trade
21%
Health care
21%
Manufacturing & industry
21%
Agriculture & forestry
11%
Public, community & associations
11%
Hospitality & travel
11%
05What their DNS and pages also say

The mail, hosting and web stack of onthe io companies

Other tools found on the same companies' websites or in their DNS records. Mail providers and senders come from SPF, DKIM and MX; the rest from page code.

Google Workspace86 companies · 60%
Cloudflare62 companies · 43%
Microsoft 36543 companies · 30%
SendGrid36 companies · 25%
facebook_pixel26 companies · 18%
Mailchimp18 companies · 13%Brevo17 companies · 12%highlevel17 companies · 12%OpenAI17 companies · 12%Vercel17 companies · 12%Mailgun15 companies · 10%meta15 companies · 10%
Microsoft Entra ID14 companies · 10%
microsoft_intune13 companies · 9%
Resend13 companies · 9%
microsoft_teams12 companies · 8%
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

143 companies carry onthe io on their website or in their DNS records; no company names it in its job postings yet. (Breaknorm, 5 November 2026, https://breaknorm.co/tools/onthe-io)
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 onthe io 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

onthe io data: questions

How many companies use onthe io?

143 as of 5 November 2026: 143 carry onthe io on their website or in their DNS records and 0 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 onthe io'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 onthe io. 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 onthe io, 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 143 with verified e-mails and a weekly feed of new onthe io users is in the product. Counting is free.

Companies and people

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Every company on onthe io,
with the person who owns it

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