Cisco IOS VS Cisco Nexus
As of 30 October 2026, Cisco Nexus is named by 138 companies and Cisco IOS by 175; Cisco IOS skews to companies under 200 people (42% vs 32%), Cisco Nexus to companies over 1,000 (49% vs 37%).
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: Cisco IOS's script and mail records show on hundreds of thousands of small sites, Cisco Nexus rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Cisco IOS: 2–200 employees
- 42%
- Cisco Nexus: 2–200 employees
- 32%
- Cisco IOS: 1,000+ employees
- 37%
- Cisco Nexus: 1,000+ employees
- 49%
- Postings per company, 90 days
- 2.6 · 3.3
- 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 | Cisco IOS | share | Cisco Nexus | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 1 | 1% | 3 | 2% | even |
| 2-10 employees | 13 | 7% | 2 | 1% | Cisco IOS |
| 11-50 employees | 20 | 11% | 15 | 11% | even |
| 51-200 employees | 40 | 23% | 27 | 20% | Cisco IOS |
| 201-500 employees | 23 | 13% | 10 | 7% | Cisco IOS |
| 501-1000 employees | 14 | 8% | 14 | 10% | Cisco Nexus |
| 1001-5000 employees | 35 | 20% | 33 | 24% | Cisco Nexus |
| 5001-10000 employees | 9 | 5% | 11 | 8% | Cisco Nexus |
| 10,001+ employees | 20 | 11% | 23 | 17% | Cisco Nexus |
| Segment | Cisco IOS | share | Cisco Nexus | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 77 | 44% | 68 | 49% | Cisco Nexus |
| Manufacturing & industry | 25 | 14% | 12 | 9% | Cisco IOS |
| Business & finance services | 21 | 12% | 25 | 18% | Cisco Nexus |
| Utilities & infrastructure | 14 | 8% | 5 | 4% | Cisco IOS |
| Consumer services & leisure | 10 | 6% | 3 | 2% | Cisco IOS |
| Public, community & associations | 9 | 5% | 5 | 4% | even |
| Health care | 5 | 3% | 6 | 4% | even |
| Property & construction | 5 | 3% | – | – | outside top 12 |
| Transport, logistics & rental | 4 | 2% | – | – | outside top 12 |
| Media & content | 3 | 2% | 7 | 5% | Cisco Nexus |
| Commerce & trade | 2 | 1% | 6 | 4% | Cisco Nexus |
| Agriculture & forestry | – | – | 1 | 1% | outside top 12 |
| Segment | Cisco IOS | share | Cisco Nexus | share | Leans |
|---|---|---|---|---|---|
| United States | 137 | 78% | 89 | 64% | Cisco IOS |
| Germany | 8 | 5% | 3 | 2% | Cisco IOS |
| United Kingdom | 7 | 4% | 12 | 9% | Cisco Nexus |
| Switzerland | 3 | 2% | – | – | outside top 12 |
| Canada | 2 | 1% | – | – | outside top 12 |
| India | 2 | 1% | 6 | 4% | Cisco Nexus |
| Netherlands | 2 | 1% | 4 | 3% | even |
| Portugal | 2 | 1% | – | – | outside top 12 |
| Denmark | 1 | 1% | – | – | outside top 12 |
| France | 1 | 1% | 4 | 3% | Cisco Nexus |
| GH | 1 | 1% | – | – | outside top 12 |
| Greece | 1 | 1% | – | – | outside top 12 |
| Italy | – | – | 4 | 3% | outside top 12 |
| Brazil | – | – | 2 | 1% | outside top 12 |
| Singapore | – | – | 2 | 1% | outside top 12 |
| United Arab Emirates | – | – | 1 | 1% | outside top 12 |
| Australia | – | – | 1 | 1% | outside top 12 |
| Belgium | – | – | 1 | 1% | outside top 12 |
| Segment | Cisco IOS | share | Cisco Nexus | share | Leans |
|---|---|---|---|---|---|
| IT operations & business systems | 497 | 73% | 535 | 76% | Cisco Nexus |
| Engineering (non-software) | 32 | 5% | 11 | 2% | Cisco IOS |
| Software engineering | 29 | 4% | 38 | 5% | even |
| Skilled trades and field service | 13 | 2% | – | – | outside top 12 |
| Sales | 8 | 1% | 11 | 2% | even |
| Customer service & success | 7 | 1% | 2 | 0% | even |
| Administration & office | 1 | 0% | – | – | outside top 12 |
| Data & AI | 1 | 0% | 2 | 0% | even |
| Education & training | 1 | 0% | 6 | 1% | even |
| Facilities cleaning and security | 1 | 0% | – | – | outside top 12 |
| Finance & accounting | 1 | 0% | – | – | outside top 12 |
| General management & consulting | 1 | 0% | 3 | 0% | even |
| Product, program & project management | – | – | 7 | 1% | outside top 12 |
| Construction and civil | – | – | 1 | 0% | outside top 12 |
| Social care and community | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using Cisco IOS →
Companies using Cisco Nexus →
routing switching wireless ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Cisco Nexus is named by 138 companies in job postings and Cisco IOS by 175; 27 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/cisco-ios-vs-cisco-nexus)
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.
Cisco IOS vs Cisco Nexus: questions
Which is more used, Cisco IOS or Cisco Nexus?
By companies naming it in their own job postings, Cisco IOS (175) over Cisco Nexus (138). By website-and-DNS footprint, Cisco Nexus (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Cisco IOS?
42% of Cisco IOS companies have 2 to 200 employees, against 32% for Cisco Nexus. 37% of Cisco IOS companies have over 1,000 employees, against 49% for Cisco Nexus.
Do companies run both?
27 companies name both in their postings, usually Cisco IOS in marketing and Cisco Nexus 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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