List of Companies Using CircleCI
Prospecting companies using CircleCI? Here they are, biggest first, including Byers Eye Institute at Stanford, CY4GATE and Carbon Direct. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$25M - $50M
128
$40M
$50M - $100M
128
$60M
$100M - $250M
128
$59M
$25M - $50M
128
$25M - $50M
128
$100M - $250M
128
$25M - $50M
128
$7M
$100M - $250M
128
$1M - $10M
128
$10M - $25M
128
$25M - $50M
128
$216M
$25M - $50M
128
$1M - $10M
128
$50M - $100M
128
$140M
$50M - $100M
128
$1M - $10M
128
$66M
$50M - $100M
128
$200M
$25M - $50M
128
$100M - $250M
128
$250M - $500M
128
$23M
<$1M
128
$23M
$1M - $10M
127
$1M - $10M
127
$25M - $50M
127
$71M
$1M - $10M
127
$29M
$50M - $100M
127
$39M
$100M - $250M
127
$100M - $250M
127
$1M - $10M
127
$298M
$10M - $25M
127
$50M - $100M
127
$36M
$10M - $25M
127
$70M
$50M - $100M
127
$1M - $10M
127
$25M - $50M
127
$10M - $25M
127
$51M
$500M - $1B
127
$174M
$250M - $500M
127
$100M - $250M
127
$60M
$25M - $50M
127
$50M - $100M
127
$1.1B
$50M - $100M
127
$25M - $50M
127
$37M
$100M - $250M
127
$50M - $100M
127
$100M - $250M
126
$100M
$50M - $100M
126
$25M - $50M
126
$50M - $100M
126
$328M
$50M - $100M
126
$100M - $250M
126
$113M
$50M - $100M
126
$1M - $10M
126
$128M
$50M - $100M
126
$100M - $250M
126
$68M
$10M - $25M
126
<$1M
126
$10M - $25M
126
$1M - $10M
126
$1M - $10M
126
$9.3M
$50M - $100M
126
$249M
$10M - $25M
125
$100M - $250M
125
$10M - $25M
125
$144M
$500M - $1B
125
$250M - $500M
125
$500M - $1B
125
$75M
$10M - $25M
125
$42M
$100M - $250M
125
<$1M
125
$100M - $250M
125
$10M - $25M
125
$38M
$1M - $10M
125
$100M - $250M
124
$1M - $10M
124
$10M - $25M
124
$100M - $250M
124
$50M - $100M
124
$50M - $100M
124
$10M - $25M
124
$50M - $100M
124
$33M
$25M - $50M
124
$1M - $10M
124
$62M
$50M - $100M
124
$10M - $25M
124
$250M - $500M
124
$92M
$250M - $500M
124
$50M - $100M
124
$1M - $10M
124
$129M
$25M - $50M
124
$10M - $25M
124
$17M
$50M - $100M
124
$100M - $250M
123
$57M
$25M - $50M
123
$25M - $50M
123
$61M
$10M - $25M
123
$100M - $250M
123
$15M
$100M - $250M
123
$1M - $10M
123
$50M - $100M
123
About companies using CircleCI
Why target companies using CircleCI?
CircleCI is a DevOps & observability technology. These are the tools engineering teams build, ship and monitor with, and their users are buyers of developer tools, infrastructure and services. Companies on the list include Byers Eye Institute at Stanford, CY4GATE and Carbon Direct.
Which industries use CircleCI the most?
Among companies using CircleCI on LeadIQ, the most common industries are Software Development, IT Services and IT Consulting, Financial Services, Technology, Information and Internet, Insurance and Hospitals and Health Care. Narrow your list to the industry you sell into from there.
Where are companies using CircleCI located?
Companies using CircleCI are most often headquartered in the United States, the United Kingdom, Canada, France, India and Germany.
What other DevOps & observability technologies do companies use?
Prospecting the wider DevOps & observability space? Related technologies with their own company lists include GitHub, New Relic, Docker and Kubernetes.
How do I reach decision makers at companies using CircleCI?
Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.
Insights based on LeadIQ data refreshed in September 2026.
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Top companies by employee count
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