Apache ZooKeeper VS Cilium
As of 30 October 2026, Cilium is named by 114 companies and Apache ZooKeeper by 105; Apache ZooKeeper skews to companies under 200 people (48% vs 48%), Cilium to companies over 1,000 (26% vs 31%).
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: Apache ZooKeeper's script and mail records show on hundreds of thousands of small sites, Cilium rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Apache ZooKeeper: 2–200 employees
- 48%
- Cilium: 2–200 employees
- 48%
- Apache ZooKeeper: 1,000+ employees
- 31%
- Cilium: 1,000+ employees
- 26%
- Postings per company, 90 days
- 1.7 · 2.7
- 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 | Apache ZooKeeper | share | Cilium | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 4 | 4% | 3 | 3% | even |
| 2-10 employees | 4 | 4% | 10 | 9% | Cilium |
| 11-50 employees | 24 | 23% | 16 | 14% | Apache ZooKeeper |
| 51-200 employees | 22 | 21% | 29 | 25% | Cilium |
| 201-500 employees | 12 | 11% | 18 | 16% | Cilium |
| 501-1000 employees | 6 | 6% | 8 | 7% | even |
| 1001-5000 employees | 12 | 11% | 20 | 18% | Cilium |
| 5001-10000 employees | 4 | 4% | 4 | 4% | even |
| 10,001+ employees | 17 | 16% | 6 | 5% | Apache ZooKeeper |
| Segment | Apache ZooKeeper | share | Cilium | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 66 | 63% | 79 | 69% | Cilium |
| Business & finance services | 15 | 14% | 11 | 10% | Apache ZooKeeper |
| Commerce & trade | 6 | 6% | 1 | 1% | Apache ZooKeeper |
| Consumer services & leisure | 6 | 6% | 1 | 1% | Apache ZooKeeper |
| Manufacturing & industry | 6 | 6% | 8 | 7% | even |
| Media & content | 4 | 4% | 3 | 3% | even |
| Public, community & associations | 1 | 1% | 5 | 4% | Cilium |
| Utilities & infrastructure | 1 | 1% | 2 | 2% | even |
| Transport, logistics & rental | – | – | 3 | 3% | outside top 12 |
| Hospitality & travel | – | – | 1 | 1% | outside top 12 |
| Segment | Apache ZooKeeper | share | Cilium | share | Leans |
|---|---|---|---|---|---|
| United States | 83 | 79% | 73 | 64% | Apache ZooKeeper |
| Germany | 4 | 4% | 5 | 4% | even |
| India | 4 | 4% | 2 | 2% | Apache ZooKeeper |
| Canada | 3 | 3% | 2 | 2% | even |
| United Kingdom | 3 | 3% | 13 | 11% | Cilium |
| France | 2 | 2% | 3 | 3% | even |
| United Arab Emirates | 1 | 1% | – | – | outside top 12 |
| BD | 1 | 1% | – | – | outside top 12 |
| Finland | 1 | 1% | – | – | outside top 12 |
| Ireland | 1 | 1% | – | – | outside top 12 |
| PK | 1 | 1% | – | – | outside top 12 |
| Portugal | 1 | 1% | – | – | outside top 12 |
| Norway | – | – | 2 | 2% | outside top 12 |
| Australia | – | – | 1 | 1% | outside top 12 |
| Belgium | – | – | 1 | 1% | outside top 12 |
| Switzerland | – | – | 1 | 1% | outside top 12 |
| Czechia | – | – | 1 | 1% | outside top 12 |
| Denmark | – | – | 1 | 1% | outside top 12 |
| Segment | Apache ZooKeeper | share | Cilium | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 209 | 60% | 238 | 58% | even |
| Data & AI | 51 | 15% | 11 | 3% | Apache ZooKeeper |
| IT operations & business systems | 35 | 10% | 112 | 27% | Cilium |
| Engineering (non-software) | 5 | 1% | 4 | 1% | even |
| Customer service & success | 3 | 1% | 1 | 0% | even |
| General management & consulting | 2 | 1% | – | – | outside top 12 |
| Product, program & project management | 2 | 1% | 1 | 0% | even |
| Sales | 1 | 0% | 14 | 3% | Cilium |
| Unclassified | 1 | 0% | 1 | 0% | even |
| Facilities cleaning and security | – | – | 1 | 0% | outside top 12 |
| Marketing & communications | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using Apache ZooKeeper →
Companies using Cilium →
container orchestration ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Cilium is named by 114 companies in job postings and Apache ZooKeeper by 105; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/apache-zookeeper-vs-cilium)
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.
Apache ZooKeeper vs Cilium: questions
Which is more used, Apache ZooKeeper or Cilium?
By companies naming it in their own job postings, Cilium (114) over Apache ZooKeeper (105). By website-and-DNS footprint, Cilium (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Apache ZooKeeper?
48% of Apache ZooKeeper companies have 2 to 200 employees, against 48% for Cilium. 31% of Apache ZooKeeper companies have over 1,000 employees, against 26% for Cilium.
Do companies run both?
0 companies name both in their postings, usually Apache ZooKeeper in marketing and Cilium 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.
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