1,102 websites using Circleci (2026) • Hunter TechLookup

The websites using Circleci

A sample of the websites Hunter detects Circleci on, ordered by web popularity.

	Domain name	Industry
1	paypal.com	Software Development	17,911 email addresses
2	adobe.com	Software Development	79,350 email addresses
3	amazon.com	Software Development	365,069 email addresses
4	automattic.com	Software Development	247 email addresses
5	mozilla.org	Software Development	423 email addresses
6	tripadvisor.com	Software Development	1,019 email addresses
7	booking.com	Software Development	1,409 email addresses
8	oracle.com	IT Services and IT Consulting	50,424 email addresses
9	ibm.com	IT Services and IT Consulting	194,826 email addresses
10	patreon.com	Technology, Information and Internet	277 email addresses
11	ft.com	Newspaper Publishing	3,096 email addresses
12	salesforce.com	Software Development	38,688 email addresses
13	cisco.com	Software Development	95,041 email addresses
14	samsung.com	Computers and Electronics Manufacturing	15,615 email addresses
15	netflix.com	Entertainment Providers	8,207 email addresses
16	redhat.com	Software Development	16,795 email addresses
17	economist.com	Newspaper Publishing	1,055 email addresses
18	intel.com	Semiconductor Manufacturing	20,790 email addresses
19	teamviewer.com	Software Development	1,255 email addresses
20	mckinsey.com	Business Consulting and Services	6,864 email addresses
21	opentable.com	Food & Beverages	70 email addresses
22	ups.com	Truck Transportation	73,200 email addresses
23	canva.com	Software Development	1,911 email addresses
24	mapbox.com	Software Development	553 email addresses
25	zillow.com	Real Estate	654 email addresses
26	udemy.com	E-Learning Providers	742 email addresses
27	coursera.org	E-Learning Providers	775 email addresses
28	upwork.com	Software Development	500 email addresses
29	pwc.com	Professional Services	118,215 email addresses
30	akamai.com	Technology, Information and Internet	5,007 email addresses
31	hibu.com	Marketing Services	2,365 email addresses
32	esri.com	Software Development	3,444 email addresses
33	kobo.com	Computers and Electronics Manufacturing	267 email addresses
34	fiverr.com	Software Development	501 email addresses
35	americanexpress.com	Financial Services	4 email addresses
36	hpe.com	IT Services and IT Consulting	7,702 email addresses
37	unicef.org	Non-profit Organizations	8,244 email addresses
38	nike.com	Retail	14,105 email addresses
39	trustedshops.com	Software Development	95 email addresses
40	telekom.de	Telecommunications	9,232 email addresses
41	box.com	Technology, Information and Internet	2,619 email addresses
42	okta.com	Software Development	901 email addresses
43	hp.com	IT Services and IT Consulting	11,386 email addresses
44	arm.com	Semiconductor Manufacturing	9,090 email addresses
45	coinbase.com	Financial Services	2,149 email addresses
46	thetradedesk.com	Technology, Information and Internet	2,459 email addresses
47	nvidia.com	Computer Hardware Manufacturing	20,806 email addresses
48	pingidentity.com	Software Development	1,129 email addresses
49	ign.com	Online Media	419 email addresses
50	algolia.com	Software Development	516 email addresses

Who uses Circleci

Websites running Circleci, counted by industry and by country. Only the largest groups are shown.

By industry

Industry	Websites
Technology, Information and Media	448
Professional Services	254
Financial Services	115
Manufacturing	72
Administrative and Support Services	37
Entertainment Providers	24
Hospitals and Health Care	23
Retail	23
Information Technology and Services	17
Transportation, Logistics, Supply Chain and Storage	12
Consumer Services	10
Real Estate and Equipment Rental Services	9

By country

Country	Websites
United States of America	652
United Kingdom of Great Britain and Northern Ireland	97
Canada	40
France	31
Germany	28
India	27
Australia	21
Japan	20
Brazil	18
Netherlands	14
Sweden	12
Switzerland	9

Circleci by country

The countries where we detected enough Circleci websites to rank them.

Circleci FAQs

Browse every technology

Hunter detects Circleci on 1,102 websites. The figure comes from Hunter's own crawl of company websites and is rebuilt every night, so it moves as sites adopt and drop the technology.

The table on this page is a sample of the websites running Circleci, ordered by web popularity, with the industries they are in and how many email addresses Hunter holds for each. Create a free account to search any of them and see the addresses.

The websites Hunter detects Circleci on most often also run Amazon Web Services, Python and Docker.

Circleci is one of the Cloud Computing Services technologies Hunter tracks. Others it detects widely include cdnjs, Amazon Web Services and Google Cloud.

Yes — that is what Hunter is for. The last column of the table shows how many email addresses Hunter already holds for a website, where it has found any. Sign up to see the addresses themselves, with the name and job title of the person behind each one.

Websites using Circleci

What is Circleci?

The websites using Circleci

You have 1,102 sites. Now reach the people.

Who uses Circleci

By industry

By country

Circleci by country

Circleci FAQs

Websites using Circleci

What is Circleci?

The websites using Circleci

Commonly used alongside Circleci

You have 1,102 sites. Now reach the people.

Alternatives to Circleci

Who uses Circleci

By industry

By country

Circleci by country

Circleci FAQs

How many websites use Circleci?

Which websites use Circleci?

What is commonly used alongside Circleci?

What are the alternatives to Circleci?

Can I find email addresses at the companies using Circleci?

Cookies preferences

Necessary cookies

Product & Analytics

Advertising