Tools · email marketing

Companies using Constant Contact_

As of 4 November 2026, 61,824 companies show Constant Contact: 61,542 carry it on their website or in their DNS records, 340 name it in their own job postings, and 58 do both.

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

Largest market
United States · 55,111 companies
Companies with 51+ staff
13,014 · 21% of the footprint
Top industry
Public, community & associations · 23%
Team that names it most
Marketing & communications · 1,671 postings
Hiring on it, last 30 days
226 companies
Most often alongside
Mailchimp · 135 companies
61,824companies show Constant Contact, all sources
61,542on their website or in DNS records
340name it in their own job postings
1,821postings naming Constant Contact, last 90 days
02 — Two ways we see a tool

Where Constant Contact 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 footprint61,542

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

Job postings340

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

Both58

Companies in the footprint whose postings also name Constant Contact. The rest of the posting population (282) runs Constant Contact without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on Constant Contact

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

Auburn UniversityUniversities · United States5001-10000 employeesDiocese of KnoxvilleCatholic parishes · Knoxville, United States201-500 employeesHarding UniversityUniversities · Searcy, United States501-1000 employeesBlueLinxConstruction materials distribution · Marietta, United States1001-5000 employeesCity of New HavenMunicipal authorities & general public bodies · New Haven, United States1001-5000 employeesCommunity ActionLocal social welfare foundations · Beaverton, United States201-500 employeesHEI Hotels & ResortsReal estate investment firms · Fairfield, United States10,001+ employeesTexas BaptistsChristian ministries & missions · Dallas, United States201-500 employeesDeKalb County, GAMunicipal authorities & general public bodies · Decatur, United States5001-10000 employeesTouro University CaliforniaUniversities · Vallejo, United States201-500 employeesArchdiocese of DetroitCatholic parishes · Detroit, United States1001-5000 employeesUnited WayGeneral purpose charities · Alexandria, United States201-500 employeesVolunteer State Community CollegeVocational technical schools · Gallatin, United States501-1000 employeesOakton CollegeUniversities · Des Plaines, United States1001-5000 employeesKingston Community Health CentresGeneral practice primary care · Kingston (SW Pittsburgh Township), Canada201-500 employeesMarcus & MillichapCommercial property & business brokerage · United States1001-5000 employeesFirst SupplyPipes valves & fittings distribution · 501-1000 employeesStart EarlyLocal social welfare foundations · United States201-500 employeesJCC Mid-WestchesterGeneral movement & wellness studios · Scarsdale, United States201-500 employeesVenturaHr & people consulting · United StatesSelf-employed
Seen through the website or DNS only

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

61,824 companies show Constant Contact; 1,300 of them have over 1,000 employees.

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04 — Footprint breakdown

By country, company size and industry

The 61,542 companies with Constant Contact on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
55,11190%
Canada
3,1715%
United Kingdom
1,0192%
Australia
3010%
Germany
880%
Spain
750%
France
720%
Ireland
660%
Mexico
490%
Netherlands
480%
India
360%
Norway
320%
By company size
companiesshare
Self-employed
12,78721%
2-10 employees
17,67929%
11-50 employees
17,76029%
51-200 employees
7,88113%
201-500 employees
2,6364%
501-1000 employees
1,1172%
1001-5000 employees
9892%
5001-10000 employees
1770%
10,001+ employees
2140%
By industry
companiesshare
Public, community & associations
14,39423%
Business & finance services
11,05218%
Consumer services & leisure
8,18513%
Property & construction
4,9678%
Media & content
4,8418%
Manufacturing & industry
4,2987%
Health care
4,2037%
Commerce & trade
3,4676%
Technology & software
2,0133%
Hospitality & travel
1,5663%
Automotive
7241%
Transport, logistics & rental
6151%
05 — What their DNS and pages also say

The mail, hosting and web stack of Constant Contact 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.

Microsoft 36539,456 companies · 64%
microsoft_teams18,851 companies · 31%
Cloudflare17,267 companies · 28%
Google Workspace17,105 companies · 28%
microsoft_intune14,197 companies · 23%
Microsoft Entra ID14,174 companies · 23%
SendGrid10,908 companies · 18%Mailchimp9,804 companies · 16%apple6,329 companies · 10%
facebook_pixel6,113 companies · 10%
proofpoint_essentials4,320 companies · 7%
rackspace_email4,049 companies · 7%
Amazon SES3,700 companies · 6%
HubSpot3,533 companies · 6%Mailgun3,380 companies · 5%Anthropic2,715 companies · 4%
06 — Job-posting evidence

Who runs Constant Contact inside the company

The 340 companies whose postings name Constant Contact: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
Marketing & communications
1,671 · 206
Administration & office
36 · 30
Business development & strategy
35 · 30
Sales
18 · 14
social care and community
17 · 14
Travel, leisure & events
13 · 10
Product, program & project management
10 · 8
Design & UX
8 · 7
arts media and entertainment
6 · 4
Education & training
6 · 4
Posting companies by country
companiesshare
United States
29486%
Canada
165%
India
41%
France
31%
United Kingdom
31%
United Arab Emirates
10%
Australia
10%
AW
10%
Germany
10%
Spain
10%
Poland
10%
Posting companies by size
companiesshare
Self-employed
154%
2-10 employees
5516%
11-50 employees
5316%
51-200 employees
8324%
201-500 employees
5316%
501-1000 employees
226%
1001-5000 employees
3310%
5001-10000 employees
103%
10,001+ employees
165%
Hiring on it right now
postings
Postings, last 30 days
1,737
Postings, last 90 days
1,821
All open postings
2,000

226 companies opened a role that names Constant Contact 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 Constant Contact teams also ask for

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

08 — email marketing

Constant Contact 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.

61,824 companies show Constant Contact: 61,542 carry it on their website or in their DNS records, 340 name it in their own job postings, and 58 do both. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/constant-contact)
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 Constant Contact 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

Constant Contact data: questions

How many companies use Constant Contact?

61,824 as of 4 November 2026: 61,542 carry Constant Contact on their website or in their DNS records and 340 name it in their own job postings; 58 show up in both. We keep the two counts apart because they measure different things.

What does "website or DNS" mean?

Our crawler finds Constant Contact'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 Constant Contact. 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 Constant Contact, 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 61,824 with verified e-mails and a weekly feed of new Constant Contact users is in the product. Counting is free.

Companies and people

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Every company on Constant Contact,
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