List of Companies Using CircleCI
Prospecting companies using CircleCI? Here they are, biggest first, including Ajaib, Paper and CareMetx, LLC. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$245M
$50M - $100M
943
$389M
$100M - $250M
943
$500M - $1B
941
$82M
$500M - $1B
941
$120K
$250M - $500M
940
$121M
$500M - $1B
939
$10M - $25M
939
$82M
$10B+
938
$1B - $10B
938
$500M - $1B
936
$334M
$100M - $250M
936
$1B - $10B
936
$100M - $250M
935
$1B - $10B
935
$330M
$250M - $500M
935
$315M
$100M - $250M
934
$471M
$250M - $500M
933
$16M
$250M - $500M
932
$492M
$1B - $10B
932
$500M - $1B
931
$1M - $10M
930
$250M - $500M
930
$10B+
929
$350K
$500M - $1B
929
$338M
$250M - $500M
929
$250M - $500M
928
$100M - $250M
928
$1B - $10B
927
$21M
$500M - $1B
927
$100M - $250M
925
$100M - $250M
924
$100M - $250M
923
$1B - $10B
921
$500M - $1B
921
$1B
$50M - $100M
919
$557M
$250M - $500M
918
$212M
$50M - $100M
917
$186M
$250M - $500M
916
$1.8B
$1B - $10B
914
$1B - $10B
914
$866M
$100M - $250M
913
$250M - $500M
913
$315M
$1B - $10B
913
$500M - $1B
913
$915M
$500M - $1B
911
$3.1M
$50M - $100M
911
$100M - $250M
910
$1.2B
$100M - $250M
910
$102M
$50M - $100M
909
$250M - $500M
909
$25M - $50M
909
$1B - $10B
908
$10B+
907
$1M - $10M
907
$1B - $10B
907
$1.3M
$1B - $10B
905
$250M - $500M
905
$100M - $250M
905
$5M
$50M - $100M
903
$50M - $100M
903
$100M - $250M
903
$6.8M
$1B - $10B
903
$84M
$500M - $1B
902
$373M
$250M - $500M
902
$250M - $500M
901
$250M - $500M
900
$10M - $25M
898
$500M - $1B
897
$500M - $1B
897
$151M
$250M - $500M
896
$1B - $10B
896
$822M
$500M - $1B
895
$37M
$100M - $250M
894
$59M
$100M - $250M
893
$44M
$250M - $500M
893
$397M
$250M - $500M
892
$88M
$250M - $500M
891
$57M
$100M - $250M
891
$1M - $10M
891
$100M - $250M
891
$106M
$100M - $250M
890
$1M - $10M
890
$50M - $100M
890
$1B - $10B
890
$127M
$500M - $1B
887
$500M - $1B
885
$50M - $100M
885
$250M - $500M
884
$50M - $100M
883
$50M - $100M
882
$989M
$500M - $1B
881
$1B - $10B
881
$990M
$100M - $250M
881
$250M - $500M
880
$50M - $100M
880
$1B - $10B
880
$100M - $250M
880
$250M - $500M
879
$545M
$100M - $250M
879
$100M - $250M
878
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 Ajaib, Paper and CareMetx, LLC.
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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