CircleCI VS Flux CD
As of 30 October 2026, Flux CD is named by 140 companies and CircleCI by 506; CircleCI skews to companies under 200 people (55% vs 44%), Flux CD to companies over 1,000 (27% vs 23%).
As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
The website-and-DNS footprint is not comparable between a marketing suite and a CRM: CircleCI's script and mail records show on hundreds of thousands of small sites, Flux CD rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- CircleCI: 2–200 employees
- 55%
- Flux CD: 2–200 employees
- 44%
- CircleCI: 1,000+ employees
- 23%
- Flux CD: 1,000+ employees
- 27%
- Postings per company, 90 days
- 1.9 · 2.0
- Website or DNS footprint
- 0 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | CircleCI | share | Flux CD | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 5 | 1% | 3 | 2% | even |
| 2-10 employees | 39 | 8% | 11 | 8% | even |
| 11-50 employees | 113 | 22% | 20 | 14% | CircleCI |
| 51-200 employees | 128 | 25% | 31 | 22% | CircleCI |
| 201-500 employees | 63 | 12% | 16 | 11% | even |
| 501-1000 employees | 43 | 8% | 21 | 15% | Flux CD |
| 1001-5000 employees | 67 | 13% | 20 | 14% | even |
| 5001-10000 employees | 10 | 2% | 5 | 4% | even |
| 10,001+ employees | 38 | 8% | 13 | 9% | even |
| Segment | CircleCI | share | Flux CD | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 333 | 66% | 85 | 61% | CircleCI |
| Business & finance services | 78 | 15% | 29 | 21% | Flux CD |
| Media & content | 21 | 4% | 5 | 4% | even |
| Manufacturing & industry | 18 | 4% | 10 | 7% | Flux CD |
| Commerce & trade | 14 | 3% | 3 | 2% | even |
| Consumer services & leisure | 7 | 1% | – | – | outside top 12 |
| Health care | 7 | 1% | – | – | outside top 12 |
| Utilities & infrastructure | 7 | 1% | 4 | 3% | even |
| Transport, logistics & rental | 6 | 1% | 1 | 1% | even |
| Public, community & associations | 5 | 1% | 2 | 1% | even |
| Automotive | 4 | 1% | – | – | outside top 12 |
| Property & construction | 4 | 1% | – | – | outside top 12 |
| Hospitality & travel | – | – | 1 | 1% | outside top 12 |
| Segment | CircleCI | share | Flux CD | share | Leans |
|---|---|---|---|---|---|
| United States | 325 | 64% | 79 | 56% | CircleCI |
| United Kingdom | 53 | 10% | 10 | 7% | CircleCI |
| India | 20 | 4% | – | – | outside top 12 |
| Germany | 15 | 3% | 13 | 9% | Flux CD |
| Canada | 13 | 3% | 1 | 1% | even |
| France | 13 | 3% | 5 | 4% | even |
| Japan | 13 | 3% | – | – | outside top 12 |
| United Arab Emirates | 5 | 1% | 1 | 1% | even |
| Australia | 4 | 1% | 5 | 4% | Flux CD |
| Spain | 3 | 1% | – | – | outside top 12 |
| Ireland | 3 | 1% | – | – | outside top 12 |
| Netherlands | 3 | 1% | – | – | outside top 12 |
| Poland | – | – | 4 | 3% | outside top 12 |
| Brazil | – | – | 3 | 2% | outside top 12 |
| Belgium | – | – | 2 | 1% | outside top 12 |
| Czechia | – | – | 2 | 1% | outside top 12 |
| Bulgaria | – | – | 1 | 1% | outside top 12 |
| Segment | CircleCI | share | Flux CD | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 1,127 | 74% | 294 | 76% | Flux CD |
| IT operations & business systems | 117 | 8% | 41 | 11% | Flux CD |
| Data & AI | 69 | 5% | 17 | 4% | even |
| Engineering (non-software) | 15 | 1% | 4 | 1% | even |
| Quality, safety & environment | 15 | 1% | – | – | outside top 12 |
| Customer service & success | 10 | 1% | – | – | outside top 12 |
| Sales | 9 | 1% | – | – | outside top 12 |
| Product, program & project management | 8 | 1% | 4 | 1% | even |
| Marketing & communications | 4 | 0% | – | – | outside top 12 |
| Finance & accounting | 3 | 0% | 1 | 0% | even |
| General management & consulting | 2 | 0% | – | – | outside top 12 |
| Human resources | 2 | 0% | – | – | outside top 12 |
The companies behind each column
Companies using CircleCI →
Companies using Flux CD →
ci cd ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Flux CD is named by 140 companies in job postings and CircleCI by 506; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/circleci-vs-fluxcd)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
- Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
- SegmentsCountry, size and industry from the company profile built from its website.
- Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
CircleCI vs Flux CD: questions
Which is more used, CircleCI or Flux CD?
By companies naming it in their own job postings, CircleCI (506) over Flux CD (140). By website-and-DNS footprint, Flux CD (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses CircleCI?
55% of CircleCI companies have 2 to 200 employees, against 44% for Flux CD. 23% of CircleCI companies have over 1,000 employees, against 27% for Flux CD.
Do companies run both?
0 companies name both in their postings, usually CircleCI in marketing and Flux CD in sales, or during a migration.
Where do these numbers come from?
From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.
Get either list your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on either tool,
with the person who owns it
Filter on CircleCI or Flux CD. Start free, no card.