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Tools ·

Companies using reply io

As of 4 November 2026, 404 companies carry reply io on their website or in their DNS records; none names it in job postings yet.

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Largest market
United States · 273 companies
Companies with 51+ staff
69 · 17% of the footprint
Top industry
Technology & software · 39%
Team that names it most
–
Hiring on it, last 30 days
0 companies
Most often alongside
–
404companies show reply io, all sources
404on their website or in DNS records
0name it in their own job postings
0postings naming reply io, last 90 days
02Two ways we see a tool

Where reply 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 footprint404

Companies whose own pages load reply io's scripts or embeds, or whose domain's mail and hosting records (SPF, DKIM, MX, CNAME) point at reply 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 reply 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 reply io. The rest of the posting population (0) runs reply io without a public trace on the site or in DNS, which is where job data earns its place.

03Who uses it

Companies on reply io

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

Seen through the website or DNS only

Companies with 1,000+ employees whose website or DNS carries reply-io but whose postings never name it: the part of the market job data alone misses.

404 companies show reply io; 4 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 404 companies with reply io on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
27368%
United Kingdom
3910%
Canada
133%
Germany
92%
France
92%
Netherlands
72%
Australia
61%
Finland
51%
Bulgaria
41%
Switzerland
31%
Cyprus
31%
Spain
31%
By company size
companiesshare
Self-employed
9423%
2-10 employees
6917%
11-50 employees
16942%
51-200 employees
5313%
201-500 employees
72%
501-1000 employees
51%
1001-5000 employees
31%
10,001+ employees
10%
By industry
companiesshare
Technology & software
15739%
Business & finance services
12832%
Consumer services & leisure
246%
Media & content
246%
Commerce & trade
205%
Manufacturing & industry
154%
Public, community & associations
113%
Property & construction
92%
Health care
51%
Hospitality & travel
41%
Transport, logistics & rental
20%
Utilities & infrastructure
20%
05What their DNS and pages also say

The mail, hosting and web stack of reply 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 Workspace325 companies · 80%
Microsoft 365149 companies · 37%
Cloudflare134 companies · 33%SendGrid108 companies · 27%Mailchimp104 companies · 26%HubSpot96 companies · 24%
AWS Route 5369 companies · 17%
Amazon SES52 companies · 13%
facebook_pixel48 companies · 12%
Mailgun45 companies · 11%Atlassian42 companies · 10%apple41 companies · 10%
mailchimp_transactional38 companies · 9%
Intercom37 companies · 9%Anthropic36 companies · 9%
microsoft_teams34 companies · 8%
Cite this

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

404 companies carry reply io on their website or in their DNS records; no company names it in its job postings yet. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/reply-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 reply 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

reply io data: questions

How many companies use reply io?

404 as of 4 November 2026: 404 carry reply 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 reply 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 reply 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 reply 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 404 with verified e-mails and a weekly feed of new reply io users is in the product. Counting is free.

Companies and people

Get this list your way

The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.

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

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