Companies using CircleCI by Circle Internet Services, Inc. in 2025
As of 2025, 3,537 verified companies use CircleCI – across industries, company sizes, and geographies. This is real, verified data. Whether you’re looking to analyze the market, build a target list, or get a sales edge – this is your starting point.
What is CircleCI by Circle Internet Services, Inc.?
CircleCI by Circle Internet Services, Inc. is a continuous integration and continuous delivery (CI/CD) platform that automates the software development pipeline. It’s commonly used to accelerate the build, test, and deployment processes for software projects. It is widely adopted in software development, DevOps, and IT operations departments.
Last updated date
Number of Companies using
3,537
The majority are based in the
United States
Most common industry?
Software
CircleCI’s sample user list in 2025
We have data on 3,537 companies that use CircleCI. Our CircleCI customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.
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CircleCI users and customers by country
2.6K Companies
2.6K Companies
2.6K Companies
2.6K Companies
Where CircleCI Shows Up Most
CircleCI is used across a wide range of sectors:
Software
Business Services
Manufacturing
Custom Software & IT Services
Finance
From lean startups to global enterprises, CircleCI’s footprint is wide, and that means opportunity.

Tech Stack Database
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FAQs
Contact UsHow latest this data is?
This data is updated on July 2, 2025
What is CircleCI?
CircleCI is a continuous integration and continuous delivery (CI/CD) platform that automates the software development pipeline, accelerating build, test, and deployment processes.
How many companies are using CircleCI in 2025?
As of 2025, 3,537 companies are using CircleCI.
Which industries are the most common users of CircleCI?
The software industry uses CircleCI the most, followed by business services, manufacturing, custom software & IT services, and finance.
Which countries have the highest adoption of CircleCI?
The United States has the highest adoption of CircleCI, followed by the United Kingdom, France, Canada, and Germany.
Can I get a list of companies using CircleCI?
Yes, a list of companies using CircleCI is available for download. The list includes company specifics such as industry, size, location, funding rounds, and revenue.