Tools · paas serverless

Companies using Heroku_

As of 4 November 2026, 8,950 companies show Heroku: 8,760 carry it on their website or in their DNS records, 199 name it in their own job postings, and 9 do both.

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

Largest market
United States · 5,066 companies
Companies with 51+ staff
907 · 10% of the footprint
Top industry
Technology & software · 38%
Team that names it most
Software engineering · 412 postings
Hiring on it, last 30 days
131 companies
Most often alongside
Amazon Web Services · 183 companies
8,950companies show Heroku, all sources
8,760on their website or in DNS records
199name it in their own job postings
334postings naming Heroku, last 90 days
02 — Two ways we see a tool

Where Heroku 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 footprint8,760

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

Job postings199

Companies whose own postings say the team works in Heroku. Read hourly from ~70 applicant tracking systems, with the function, a quote and a date. Intent: the team that runs it is hiring.

Both9

Companies in the footprint whose postings also name Heroku. The rest of the posting population (190) runs Heroku without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on Heroku

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

Seen through the website or DNS only

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

8,950 companies show Heroku; 81 of them have over 1,000 employees.

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04 — Footprint breakdown

By country, company size and industry

The 8,760 companies with Heroku on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
5,06658%
United Kingdom
5546%
Brazil
3694%
France
3564%
Canada
2683%
Germany
2393%
Australia
2193%
Spain
1432%
Italy
1081%
Switzerland
991%
Netherlands
981%
Norway
841%
By company size
companiesshare
Self-employed
3,64042%
2-10 employees
2,13424%
11-50 employees
1,92222%
51-200 employees
5777%
201-500 employees
1572%
501-1000 employees
771%
1001-5000 employees
691%
5001-10000 employees
110%
10,001+ employees
160%
By industry
companiesshare
Technology & software
3,30438%
Business & finance services
1,33215%
Consumer services & leisure
1,03812%
Media & content
8319%
Commerce & trade
4335%
Public, community & associations
3644%
Manufacturing & industry
3194%
Property & construction
2823%
Hospitality & travel
2102%
Health care
1802%
Transport, logistics & rental
1362%
Utilities & infrastructure
771%
05 — What their DNS and pages also say

The mail, hosting and web stack of Heroku 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 Workspace4,553 companies · 52%
Microsoft 3652,577 companies · 29%
SendGrid2,458 companies · 28%Cloudflare2,229 companies · 25%Mailchimp1,356 companies · 15%
facebook_pixel1,061 companies · 12%
HubSpot993 companies · 11%
microsoft_teams972 companies · 11%
meta892 companies · 10%
AWS Route 53870 companies · 10%
Amazon SES827 companies · 9%
microsoft_intune787 companies · 9%
Microsoft Entra ID785 companies · 9%
Mailgun731 companies · 8%Vercel687 companies · 8%
mailchimp_transactional621 companies · 7%
06 — Job-posting evidence

Who runs Heroku inside the company

The 199 companies whose postings name Heroku: 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
412 · 226
IT operations & business systems
41 · 27
Product, program & project management
21 · 9
Sales
18 · 7
Data & AI
9 · 8
Customer service & success
5 · 5
Education & training
5 · 2
Marketing & communications
4 · 3
Engineering (non-software)
2 · 2
Unclassified
2 · 2
Posting companies by country
companiesshare
United States
10854%
India
158%
United Kingdom
137%
Germany
105%
France
95%
Canada
63%
Brazil
32%
Japan
32%
Netherlands
32%
Australia
21%
PH
21%
Belgium
11%
Posting companies by size
companiesshare
Self-employed
105%
2-10 employees
3216%
11-50 employees
4824%
51-200 employees
4724%
201-500 employees
2412%
501-1000 employees
116%
1001-5000 employees
189%
5001-10000 employees
53%
10,001+ employees
42%
Hiring on it right now
postings
Postings, last 30 days
215
Postings, last 90 days
334
All open postings
576

131 companies opened a role that names Heroku 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 Heroku teams also ask for

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

08 — paas serverless

Heroku 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.

8,950 companies show Heroku: 8,760 carry it on their website or in their DNS records, 199 name it in their own job postings, and 9 do both. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/heroku)
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 Heroku 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

Heroku data: questions

How many companies use Heroku?

8,950 as of 4 November 2026: 8,760 carry Heroku on their website or in their DNS records and 199 name it in their own job postings; 9 show up in both. We keep the two counts apart because they measure different things.

What does "website or DNS" mean?

Our crawler finds Heroku'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 Heroku. 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 Heroku, 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 8,950 with verified e-mails and a weekly feed of new Heroku users is in the product. Counting is free.

Companies and people

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