List of Companies Using CircleCI
Prospecting companies using CircleCI? Here they are, biggest first, including Socket, UltiMaker and Vouch Insurance. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$125M
$250M - $500M
143
$17M
$25M - $50M
143
$185M
$250M - $500M
143
$1M - $10M
142
$1M - $10M
142
$1M - $10M
142
$50M - $100M
142
$10M - $25M
142
$50M - $100M
142
$22M
$10M - $25M
142
$100M - $250M
142
$69M
$100M - $250M
142
$100M - $250M
141
$123M
$100M - $250M
141
$100M - $250M
141
$418M
$100M - $250M
141
$1M - $10M
141
$250M - $500M
141
$7.4M
$100M - $250M
141
$1.9B
$100M - $250M
141
$25M - $50M
141
$154M
$25M - $50M
141
$58M
$25M - $50M
141
$57M
$50M - $100M
141
$25M - $50M
141
$50M - $100M
141
$253M
$100M - $250M
141
$22M
$500M - $1B
141
$25M - $50M
141
$100M - $250M
140
$100M - $250M
140
$35M
$10M - $25M
140
$115M
$100M - $250M
140
$8.4M
$50M - $100M
140
$7.5M
$50M - $100M
140
$21K
$10M - $25M
140
$1M - $10M
140
$28M
$10M - $25M
140
$76M
$100M - $250M
140
$10M - $25M
140
$25M - $50M
140
$28M
$100M - $250M
140
$1M - $10M
140
$25M - $50M
140
$10M - $25M
139
$1M - $10M
139
$100M - $250M
139
$100M - $250M
139
$26M
$100M - $250M
139
$50M - $100M
139
$46M
$50M - $100M
139
<$1M
138
$10M - $25M
138
$1M - $10M
138
$25M - $50M
138
$354M
$25M - $50M
138
$179M
$50M - $100M
138
$10M - $25M
138
$57M
$50M - $100M
138
$34M
$1M - $10M
138
$50M - $100M
138
$25M - $50M
138
$248M
$50M - $100M
138
$82M
$50M - $100M
138
$100M - $250M
138
$25M - $50M
138
$10M - $25M
138
$100M - $250M
137
$10M - $25M
137
$10M - $25M
137
$3.1M
$100M - $250M
137
$50M - $100M
137
$1B - $10B
137
$50M - $100M
137
$5M
$25M - $50M
137
$50M - $100M
137
$100M - $250M
137
$238M
$100M - $250M
137
$50M - $100M
137
$17M
$1M - $10M
137
$25M - $50M
137
$100M - $250M
137
$1M - $10M
136
$10M - $25M
136
$4M
$100M - $250M
136
$25M - $50M
136
$10M - $25M
136
$1M - $10M
136
$13M
$100M - $250M
136
$57M
$50M - $100M
136
$100M - $250M
136
$25M - $50M
136
$21M
$25M - $50M
136
$50M - $100M
136
$50M - $100M
136
$10M - $25M
136
$100M - $250M
136
$10M - $25M
135
$25M - $50M
135
$100M - $250M
135
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 Socket, UltiMaker and Vouch Insurance.
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
Top companies in United States by employee countTop companies in United Kingdom by employee countTop companies in Canada by employee countTop companies in Germany by employee countTop companies in France by employee countTop companies in Australia by employee countTop companies in Netherlands by employee countTop companies in India by employee countTop companies in Spain by employee countTop companies in Switzerland by employee countTop companies in Sweden by employee countTop companies in Italy by employee countTop companies in Denmark by employee countTop companies in Brazil by employee countTop companies in Ireland by employee count
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