List of Companies Using CircleCI
Prospecting companies using CircleCI? Here they are, biggest first, including Raspberry Pi Foundation, Relay and KCS iT. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$45M
$25M - $50M
379
$125M
$25M - $50M
379
$10M - $25M
378
$250M - $500M
378
$310M
$100M - $250M
378
$25M - $50M
377
$16M
$10M - $25M
377
$452M
$1B - $10B
377
$50M - $100M
377
$1M - $10M
377
$1M - $10M
377
$50M - $100M
376
$500M - $1B
376
$250M - $500M
376
$10M - $25M
376
$8M
$250M - $500M
376
$32M
$25M - $50M
376
$500M - $1B
376
$50M - $100M
375
$18M
$250M - $500M
374
$100M - $250M
374
$250M - $500M
374
$500M - $1B
374
$100M - $250M
373
$37M
$50M - $100M
373
$1B - $10B
373
$25M - $50M
372
$25M - $50M
372
$1M - $10M
372
$365M
$500M - $1B
372
$10M - $25M
372
$81M
$100M - $250M
371
$32M
$100M - $250M
371
$854M
$100M - $250M
371
$332M
$50M - $100M
371
$250M - $500M
370
$25M - $50M
370
$1M - $10M
370
$431M
$1B - $10B
370
$100M - $250M
370
$250M - $500M
369
$25M - $50M
369
$25M - $50M
369
$38M
$250M - $500M
369
$50M
$25M - $50M
369
$100M - $250M
368
$50M - $100M
368
$1B - $10B
368
$97M
$100M - $250M
368
$142M
$1B - $10B
367
$30M
$50M - $100M
367
$100M - $250M
367
$36M
$250M - $500M
367
$250M - $500M
366
$25M - $50M
366
$49M
$100M - $250M
366
$5M
$250M - $500M
366
$100M - $250M
366
$39M
$250M - $500M
366
$500M - $1B
366
$6.5M
$50M - $100M
366
$25M - $50M
365
$500M - $1B
365
$100M - $250M
365
$822M
$100M - $250M
365
$383M
$250M - $500M
365
$31M
$250M - $500M
364
$483M
$500M - $1B
364
$263M
$100M - $250M
363
$10M - $25M
363
$410M
$250M - $500M
363
$64M
$50M - $100M
363
$100M - $250M
363
$250M - $500M
363
$299M
$100M - $250M
363
$100M - $250M
362
$41M
$100M - $250M
362
$1M - $10M
362
$250M - $500M
361
$250M - $500M
361
$116M
$100M - $250M
361
$264M
$50M - $100M
361
$89M
$100M - $250M
360
$11M
$100M - $250M
360
$250M - $500M
359
$10M - $25M
359
$72M
$100M - $250M
359
$1M - $10M
359
$10M - $25M
359
$315M
$100M - $250M
358
$1.5M
$500M - $1B
358
$10B+
358
$1M - $10M
358
$1M - $10M
358
$250M - $500M
358
$50M - $100M
358
$144M
$10M - $25M
357
$250M - $500M
357
$100M - $250M
357
$100M - $250M
356
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 Raspberry Pi Foundation, Relay and KCS iT.
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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