CircleCI users list

Email list of companies using CircleCI

Q: How many companies use CircleCI?

Data InfoMetrix tracks 63,497 companies using CircleCI, with 519,242 verified contacts at those accounts as of October 2026. The largest groups are SaaS & Technology, Fintech and E-Commerce. Counts are estimates from our database and market research, so ask us for a live count for your exact criteria.

Q: Who buys and manages CircleCI inside a company?

CircleCI is usually owned by Continuous Integration & Delivery. Decision-makers include CTO, VP of Engineering and VP of Infrastructure; Platform Engineering Lead and DevOps Manager shape the choice, and DevOps Engineers and SREs use it day to day. Our CircleCI list can include any of these roles.

Q: Which CircleCI products or editions can I target?

You can target accounts by the CircleCI products they run, including CircleCI Free, CircleCI Performance, CircleCI Scale, CircleCI Server (Self-Hosted) and CircleCI Releases. Tell us which edition or module matters and we filter the list to those accounts.

Q: What other software do CircleCI customers use?

CircleCI customers commonly also run AWS, Kubernetes, GitHub, Terraform and Datadog. CircleCI is often connected to Bitbucket and Docker, so users of those tools overlap heavily. We can filter any list by this kind of stack overlap.

Q: What are the main alternatives to CircleCI?

The main alternatives to CircleCI are GitHub Actions, Buildkite and GitLab CI. We also keep verified user lists for GitHub Actions, Buildkite and GitLab CI, which is useful for competitive displacement campaigns.

Q: When are CircleCI customers most likely to buy?

Buying triggers we track for CircleCI accounts include CI migration to GitHub Actions, build time initiative, monorepo adoption and engineering growth. A common pain point is build speed and flakiness: Slow, flaky tests block releases.

Q: Can Data InfoMetrix deliver a free sample CircleCI contact list before ordering?

Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target CircleCI criteria—including target job titles, company size, and region—delivered within one business day with no obligation.

Q: How does Data InfoMetrix guarantee email deliverability for CircleCI contacts?

Data InfoMetrix provides a 99% email deliverability guarantee on all CircleCI datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.

Reach engineering and platform leaders using CircleCI for CI/CD pipelines, test insights and releases.

63,497+Companies

519,242+Contacts

Updated Oct 7, 2026GDPR · CCPA99% accuracy

See sample data

Free CircleCI count + 10 sample records

63,497+ companies · 519,242+ contacts available

✓Exact count for your titles, regions and company size
✓10 verified sample records to check quality
✓Price quote within 1 business day

Trusted by B2B and enterprise revenue teams

How many companies use CircleCI?

Data InfoMetrix tracks 63,497+ companies running CircleCI as of October 2026, with 519,242+ verified contacts at those accounts. The largest groups are SaaS & Technology, Fintech and E-Commerce. Buying decisions usually sit with the CTO, VP of Engineering and VP of Infrastructure. Counts are estimates built from technology footprint scans, job-post signals and partner directories, checked by our research team. How we count

Tracked accounts63,497+

Organizations detected running CircleCI.

Verified contacts519,242+

Direct emails and phone dials for decision-makers.

Primary personasVP of Engineering, Head of Developer Productivity, DevOps Manager

Full buying committee mapped.

Deliverability SLA99%

SMTP-verified, with 1:1 replacement of any email that hard bounces within 30 days.

Data specification · Updated Q4 2026

Technology category	DevOps & Cloud Infrastructure
Tracked organizations	63,497+ verified accounts worldwide
Decision-maker contacts	519,242+ records with emails, mobile and direct dials
Key roles	VP of Engineering, Head of Developer Productivity, DevOps Manager, platform administrators, IT directors, procurement
Geography	180+ countries · country-by-country counts on request
Verification	DNS and script telemetry, 5-stage SMTP handshake, manual research
Refresh cadence	Continuous, 30–45 day maximum record age at delivery
Compliance	GDPR, CAN-SPAM, CCPA and CASL
Delivery	24–48 hours as CSV, XLSX or CRM API

Editorial & verification

Researched by the Data InfoMetrix research team. Counts updated October 2026.

How we count and verify data

Size your CircleCI audience

Pick a region, company size and buying role to estimate how many accounts and contacts you can reach.

Region

Company size

Buying role

Estimated segment✓ 99% SLA

63,497+Target accounts

519,242+Direct contacts

Decision-makers35%

Influencers45%

End users20%

Estimates from our current CircleCI dataset. Exact counts come with your quote.

Reach the whole buying committee

A CircleCI account is not one contact. We map the people who evaluate, buy, run and use it across Continuous Integration & Delivery.

Decision-makersC-suite & sponsors

CTOVP of EngineeringVP of InfrastructureHead of Platform Engineering

Influencers & adminsEvaluate & configure

Platform Engineering LeadDevOps ManagerSRE ManagerStaff Engineer

End usersRun it every day

DevOps EngineersSREsSoftware EngineersPlatform Engineers

These are examples. We build records for any department, seniority or custom title.

See exactly what you get

Every record carries 60+ fields, from verified email, direct dial and LinkedIn to full postal address, CircleCI edition, coexisting stack and intent.

Contact	Buying role	Work email	Direct dial	Company phone	Fax	LinkedIn profile	Company	LinkedIn company page	Industry	Address 1	Address 2	City	State	ZIP code	Country	CircleCI footprint	Intent	Status
SRSophia ReyesVP of Platform Engineering	Decision Maker	s.r***@apexc**.io	+1 (415) 55*-**	+1 (415) 55*-**	+1 (415) 55*-**	linkedin.com/in/s*ia-r*******	Apex Cloud Systems Inc.	linkedin.com/company/apex-cloud-sys	Enterprise Software & Cloud SaaS	100 Montgomery St	Ste 1800	San Francisco	CA	94104	United States	CircleCI Enterprise Cloud & Multi-Region Workloads	High	✓ Verified 2026
MWMarcus WebbLead Site Reliability Engineer (SRE)	Influencer	m.we**@kensington*******.uk	+44 (20) 79*-**	+44 (20) 79*-**	+44 (20) 79*-**	linkedin.com/in/m*us-we******	Kensington Global Capital Ltd	linkedin.com/company/kensington-cap	Financial Services & Modern FinTech	25 Bank St Canary Wharf	—	London	Greater London	E14 5JP	United Kingdom	CircleCI Production Cluster & SRE Monitoring	High	✓ Verified 2026
LFLena FischerPrincipal Cloud Infrastructure Architect	Influencer	l.fi**@stack**.de	+49 (30) 55*-**	+49 (30) 55*-**	+49 (30) 55*-**	linkedin.com/in/l*a-fi******	StackLabs Infrastructure GmbH	linkedin.com/company/stacklabs-de	Cloud Hosting & Distributed Systems	Friedrichstraße 176-179	—	Berlin	Berlin	10117	Germany	CircleCI Core Platform & Infrastructure as Code	High	✓ Verified 2026
JOJames O'ConnorDirector of Cloud Operations & DevOps	Decision Maker	j.oc**@veloce****.com	+1 (312) 55*-**	+1 (312) 55*-**	+1 (312) 55*-**	linkedin.com/in/j*s-oc******	Veloce Global Logistics Corp	linkedin.com/company/veloce-logistics	Enterprise Supply Chain & Telematics IoT	233 S Wacker Dr	Ste 4200	Chicago	IL	60606	United States	CircleCI Continuous Deployment & Telemetry Pipelines	High	✓ Verified 2026
ALAstrid LindholmHead of Developer Experience & Tooling	Influencer	a.li**@nordi**.se	+46 (8) 55*-**	+46 (8) 55*-**	+46 (8) 55*-**	linkedin.com/in/a*id-li******	Nordic Digital Commerce AB	linkedin.com/company/nordicpay-ab	E-Commerce & High-Volume Retail Platforms	Hamngatan 15	—	Stockholm	Stockholm County	111 47	Sweden	CircleCI Developer Tooling & API Network	Medium	✓ Verified 2026
DVDavid VanceChief Technology Officer (CTO)	Decision Maker	d.va**@beacond****.com	+1 (703) 55*-**	+1 (703) 55*-**	+1 (703) 55*-**	linkedin.com/in/d*d-va******	Beacon Mission Systems Inc.	linkedin.com/company/beacon-tech	Defense, Aerospace & Industrial Automation	1850 Towers Crescent Plaza	—	Tysons	VA	22182	United States	CircleCI GovCloud / FedRAMP Authorized Cluster	High	✓ Verified 2026
RGRachel Green-CohenDirector of Cloud Infrastructure & DevSecOps	Influencer	r.co**@veritas****.org	+1 (617) 55*-**	+1 (617) 55*-**	+1 (617) 55*-**	linkedin.com/in/r*el-co******	Veritas Health Technologies Inc.	linkedin.com/company/veritas-health-sys	Digital Health & Clinical Cloud Systems	75 Francis St	—	Boston	MA	02115	United States	CircleCI Healthcare Dedicated VPC & HIPAA Compliance	Medium	✓ Verified 2026
YTYuri TanakaSenior SRE & Cloud Systems Engineer	Practitioner	y.ta**@biosynth*****.jp	+81 (3) 55*-**	+81 (3) 55*-**	+81 (3) 55*-**	linkedin.com/in/yi-ta******	BioSynthetix Genomic Systems KK	linkedin.com/company/biosynthetix-kk	Life Sciences & High-Performance Cloud Computing	Roppongi Hills Mori Tower	30F	Tokyo	Tokyo	106-6108	Japan	CircleCI High-Performance Computing (HPC) Node Cluster	Medium	✓ Verified 2026

Illustrative rows showing 20 of 60+ fields. Full records are unmasked.

We deliver 60+ data fields per record, including intent data. The sample shows a selection only. Tell us which fields you need, including any that aren't listed here, and we'll add them to your list.

Also available:Seniority & departmentJob functionTenure in roleEmployee countAnnual revenueSIC & NAICS codesParent companyWebsite & domainProduct editionContract & renewal timingIntent topics & scoreEmail verification date

How we prove an account runs CircleCI

No scraped résumés or stale directories. Three layers confirm a live installation before a contact reaches your list. Read our verification protocol

Pillar 1 · Telemetry

Live DNS & script signals

We inspect response headers, DNS MX and CNAME records and live JavaScript bundles to confirm a running CircleCI instance.

DNS · CNAME · MX recordsHTTP headers · JS bundles✓ Verified against live infrastructure

Pillar 2 · Operational intent

90-day hiring signals

We track job requisitions that ask for CircleCI skills, which shows ongoing budget and headcount.

Now hiringCircleCI Administrator

Now hiringCircleCI Architect

Now hiringCircleCI Engineer

Pillar 3 · Human & mailbox QA

Pre-delivery SMTP handshake

Each email is tested against the destination mail server, and titles are checked against current company rosters.

SMTP check ✓LinkedIn match ✓Title verified ✓

✓ Deliverable inbox and current role

Deliverability SLA

<3%

Maximum bounce rate, or we replace the contacts. Your sender reputation stays clean.

1:1 hard bounce replacement

Every email that hard-bounces within 30 days of delivery is replaced free, record for record.

24-hour pre-delivery ping

Live SMTP and MX checks right before we send your file.

Instant CRM import

Clean CSV or XLSX, ready for one-click import.

Ready for your outbound stack

Imports straight into the tools you use.

What are you trying to do?

Each campaign needs a different data strategy. Pick your goal to see how we build the audience.

Find companies on rival platforms and reach the people evaluating a move to, or away from, CircleCI.

Conquesting playbook

Pitch integrations, add-ons and complementary tools to companies already running CircleCI.

Ecosystem playbook

Build account lists around CircleCI deployment scale and engage the full committee across departments.

ABM playbook

Conquesting audienceSample

GitHub Actions

Buildkite

GitLab CI

→

CircleCI

Know the stack around every account

CircleCI rarely runs alone. Every record is tagged with the tools detected alongside it, so you can segment by complementary stacks.

AWS

Open the coexistence matrix

What CircleCI customers look like

Anonymised profiles of companies in our CircleCI dataset of 63,497+ accounts. Named accounts are shared in your free sample, never on a public page.

CircleCI account profiles · anonymised

Company size	Industry	Country	Employees	Revenue
Mid-market	Fintech	United States	500–999	$100M–$250M
Mid-market	E-Commerce	United Kingdom	200–999	$50M–$250M
Enterprise	Media & Gaming	United States	5,000+	$1B+
Upper mid-market	SaaS & Technology	Canada	1,000–4,999	$250M–$1B
SMB	Fintech	Germany	50–199	$10M–$50M
Enterprise	E-Commerce	United States	10,000+	$5B+
Mid-market	Media & Gaming	Australia	500–999	$100M–$250M
Mid-market	SaaS & Technology	United States	200–999	$50M–$250M

Markets we cover

United States

India

United Kingdom

Canada

Germany

Australia

Singapore

France

New Zealand

Netherlands

Plus 170 more countries. Ask for a country-by-country count of CircleCI accounts and we'll include it with your free sample.

Build the list your way

Every list is assembled from source to your product tier, job function, geography and revenue band. Nothing is a fixed export.

Editions & modules

Filter by what they actually run.

+CircleCI Free+CircleCI Performance+CircleCI Scale+CircleCI Server (Self-Hosted)+CircleCI Releases

Firmographics

Match revenue, size and industry.

+Industry+$1M–$10B+ revenue+Headcount+Ownership & funding+HQ & branches

Geography

Target any territory.

+US & Canada+US states+UK, DACH, Nordics+APAC & ANZ+Metro clusters

Need multi-attribute segments? Open the Audience Builder

What CircleCI teams are struggling with

Know the friction before you reach out, and position your product where it matters.

Friction 1

Build speed and flakiness

ImpactSlow, flaky tests block releases.

OpportunityOffer test optimisation services.

Friction 2

CI cost

ImpactCredit usage grows.

OpportunityTarget with CI cost reviews and alternatives.

Friction 3

Security after past incidents

ImpactSecrets rotation and controls matter.

OpportunityPitch pipeline security.

Intent triggers we track

✓CI migration to GitHub Actions

✓Build time initiative

✓Monorepo adoption

✓Engineering growth

“The accuracy of their technographic data was outstanding. Every AWS contact we reached out to was actively running live production clusters.”

VP of Field Engineering, a cloud infrastructure companyName withheld at the client's request

Read the $2.2M ARR case study

CircleCI list questions, answered

How many companies use CircleCI?

Data InfoMetrix tracks 63,497 companies using CircleCI, with 519,242 verified contacts at those accounts as of October 2026. The largest groups are SaaS & Technology, Fintech and E-Commerce. Counts are estimates from our database and market research, so ask us for a live count for your exact criteria.

Who buys and manages CircleCI inside a company?

CircleCI is usually owned by Continuous Integration & Delivery. Decision-makers include CTO, VP of Engineering and VP of Infrastructure; Platform Engineering Lead and DevOps Manager shape the choice, and DevOps Engineers and SREs use it day to day. Our CircleCI list can include any of these roles.

Which CircleCI products or editions can I target?

You can target accounts by the CircleCI products they run, including CircleCI Free, CircleCI Performance, CircleCI Scale, CircleCI Server (Self-Hosted) and CircleCI Releases. Tell us which edition or module matters and we filter the list to those accounts.

What other software do CircleCI customers use?

CircleCI customers commonly also run AWS, Kubernetes, GitHub, Terraform and Datadog. CircleCI is often connected to Bitbucket and Docker, so users of those tools overlap heavily. We can filter any list by this kind of stack overlap.

What are the main alternatives to CircleCI?

The main alternatives to CircleCI are GitHub Actions, Buildkite and GitLab CI. We also keep verified user lists for GitHub Actions, Buildkite and GitLab CI, which is useful for competitive displacement campaigns.

When are CircleCI customers most likely to buy?

Buying triggers we track for CircleCI accounts include CI migration to GitHub Actions, build time initiative, monorepo adoption and engineering growth. A common pain point is build speed and flakiness: Slow, flaky tests block releases.

Can Data InfoMetrix deliver a free sample CircleCI contact list before ordering?

Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target CircleCI criteria—including target job titles, company size, and region—delivered within one business day with no obligation.

How does Data InfoMetrix guarantee email deliverability for CircleCI contacts?

Data InfoMetrix provides a 99% email deliverability guarantee on all CircleCI datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.

Sourcing and compliance. Business contacts come from public company sources, professional directories and opt-in publishing partners, then go through SMTP verification and human review. Lists are for B2B outreach: include an unsubscribe link and honour opt-outs (CAN-SPAM), and have a lawful basis such as legitimate interest when you email people in the EU or UK (GDPR). Read how we source and verify data