List of Companies Using CircleCI
Prospecting companies using CircleCI? Here they are, biggest first, including K Health, Known and Testing Mavens. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$419M
$100M - $250M
386
$250M - $500M
386
$25M - $50M
386
$81M
$100M - $250M
385
$25M - $50M
385
$793M
$250M - $500M
385
$13M
$10M - $25M
385
$10M - $25M
385
$25M - $50M
384
$18M
$250M - $500M
384
$50M - $100M
384
$100M - $250M
384
$37M
$50M - $100M
384
$250M - $500M
384
$1B - $10B
384
$25M - $50M
384
$25M - $50M
383
$100M - $250M
383
$250M - $500M
383
$100M - $250M
383
$1M - $10M
383
$25M - $50M
383
$500M - $1B
383
$14M
$10M - $25M
383
$152M
$100M - $250M
382
$250M - $500M
382
$32M
$25M - $50M
382
$1M - $10M
382
$1M - $10M
382
$10M - $25M
382
$14M
$10M - $25M
381
$250M - $500M
381
$25M - $50M
381
$5M
$250M - $500M
381
$577M
$25M - $50M
381
$59M
$500M - $1B
381
$10M - $25M
381
$330M
$50M - $100M
381
$201M
$500M - $1B
380
$457M
$100M - $250M
380
$32M
$100M - $250M
380
$8M
$250M - $500M
380
$264M
$50M - $100M
380
$10M - $25M
379
$1B - $10B
379
$100M - $250M
379
$201M
$250M - $500M
379
$25M - $50M
378
$45M
$25M - $50M
378
$6.5M
$50M - $100M
378
$50M - $100M
377
$48M
$25M - $50M
377
$100M - $250M
377
$431M
$1B - $10B
377
$1M - $10M
377
$10M - $25M
376
$100M - $250M
376
$50M - $100M
376
$500M - $1B
376
$31M
$250M - $500M
375
$25M - $50M
375
$116M
$100M - $250M
375
$107M
$250M - $500M
375
$900M
$100M - $250M
374
$250M - $500M
374
$10M - $25M
374
$323M
$500M - $1B
374
$1.5B
$100M - $250M
374
$500M - $1B
373
$37M
$10M - $25M
373
$10M
$250M - $500M
373
$500M - $1B
373
$250M - $500M
372
$72M
$100M - $250M
372
$822M
$100M - $250M
372
$39M
$10M - $25M
372
$10M - $25M
372
$250M - $500M
372
$100M - $250M
372
$142M
$1B - $10B
371
$50M - $100M
371
$1M - $10M
371
$250M - $500M
369
$25M - $50M
369
$21M
$100M - $250M
369
$50M - $100M
369
$97M
$100M - $250M
369
$30M
$50M - $100M
368
$25M - $50M
368
$100M - $250M
368
$500M - $1B
368
$250M - $500M
368
$383M
$250M - $500M
368
$250M - $500M
367
$49M
$100M - $250M
367
$250M - $500M
367
$38M
$250M - $500M
367
$294M
$100M - $250M
367
$50M
$25M - $50M
367
$250M - $500M
367
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 K Health, Known and Testing Mavens.
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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