List of Companies Using CircleCI
Prospecting companies using CircleCI? Here they are, biggest first, including IQVIA, Fidelity Investments and Barclays. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$4.6B
$10B+
86K
$162M
$10B+
85K
$10B+
84K
$1B - $10B
84K
$5.5B
$10B+
83K
$7.3B
$10B+
82K
$3.4B
$10B+
82K
$1M - $10M
81K
$10B+
81K
$2.2B
$10B+
80K
$818M
$10B+
80K
$10B+
79K
$4.8M
$1B - $10B
78K
$2.7B
$10B+
77K
$10B+
76K
$4.2B
$10B+
74K
$4.9B
$10B+
73K
$8.9B
$10B+
73K
$2.3B
$10B+
72K
$90M
$10B+
72K
$1.2B
$10B+
72K
$2.6B
$10B+
71K
$3.9B
$10B+
70K
$1B - $10B
69K
$1.2B
$10B+
69K
$330M
$10B+
69K
$1.1B
$10B+
68K
$75M
$1B - $10B
68K
$1.1B
$10B+
68K
$337M
$10B+
68K
$3B
$10B+
68K
$3.3B
$10B+
68K
$8.5B
$10B+
67K
$532M
$10B+
66K
$10B+
64K
$5M
$10B+
64K
$9.1B
$10B+
62K
$10B+
61K
$500M
$10B+
61K
$1.6B
$10B+
61K
$8B
$10B+
60K
$10B+
60K
$5.5B
$10B+
60K
$23B
$10B+
60K
$10B+
59K
$469M
$10B+
58K
$6.5B
$10B+
58K
$1.1B
$10B+
57K
$500M
$10B+
57K
$225M
$10B+
57K
$10B+
57K
$1.2B
$1B - $10B
57K
$10B+
56K
$142M
$10B+
56K
$1.6B
$10B+
56K
$10B+
54K
$4.1B
$10B+
54K
$7.7B
$10B+
54K
$10B+
54K
$9.7B
$10B+
53K
$10B+
52K
$787M
$10B+
52K
$10B+
52K
$4.1B
$10B+
52K
$10B+
52K
$3.2B
$10B+
51K
$5B
$10B+
50K
$3.2M
$10B+
50K
$9.8B
$10B+
50K
$10B+
50K
$13B
$10B+
49K
$10B+
49K
$14B
$10B+
49K
$3.4B
$10B+
49K
$100M - $250M
48K
$300M
$10B+
48K
$3.1B
$10B+
48K
$29B
$1B - $10B
48K
$3.4B
$10B+
48K
$1.9B
$1B - $10B
47K
$5.5B
$10B+
46K
$579M
$10B+
46K
$180M
$1B - $10B
46K
$1.5B
$10B+
45K
$10B+
45K
$10B+
45K
$112M
$10B+
44K
$811M
$10B+
44K
$4M
$1B - $10B
44K
$69M
$1B - $10B
44K
$509M
$1B - $10B
44K
$579M
$10B+
44K
$18B
$10B+
44K
$18B
$10B+
43K
$879M
$1B - $10B
43K
$950M
$1B - $10B
43K
$2.5M
$10B+
43K
$12B
$10B+
43K
$10B+
43K
$1B - $10B
43K
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 IQVIA, Fidelity Investments and Barclays.
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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