Cisco ASA VS Zscaler
As of 30 October 2026, Zscaler is named by 323 companies and Cisco ASA by 320; Cisco ASA skews to companies under 200 people (38% vs 21%), Zscaler to companies over 1,000 (53% vs 41%).
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 ASA's script and mail records show on hundreds of thousands of small sites, Zscaler rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Cisco ASA: 2–200 employees
- 38%
- Zscaler: 2–200 employees
- 21%
- Cisco ASA: 1,000+ employees
- 41%
- Zscaler: 1,000+ employees
- 53%
- Postings per company, 90 days
- 2.6 · 3.3
- Website or DNS footprint
- 0 · 3,109
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | Cisco ASA | share | Zscaler | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 3 | 1% | 2 | 1% | even |
| 2-10 employees | 18 | 6% | 10 | 3% | Cisco ASA |
| 11-50 employees | 34 | 11% | 18 | 6% | Cisco ASA |
| 51-200 employees | 68 | 21% | 41 | 13% | Cisco ASA |
| 201-500 employees | 35 | 11% | 47 | 15% | Zscaler |
| 501-1000 employees | 30 | 9% | 35 | 11% | even |
| 1001-5000 employees | 58 | 18% | 69 | 21% | Zscaler |
| 5001-10000 employees | 20 | 6% | 30 | 9% | Zscaler |
| 10,001+ employees | 54 | 17% | 71 | 22% | Zscaler |
| Segment | Cisco ASA | share | Zscaler | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 142 | 44% | 112 | 35% | Cisco ASA |
| Business & finance services | 65 | 20% | 79 | 24% | Zscaler |
| Manufacturing & industry | 41 | 13% | 53 | 16% | Zscaler |
| Utilities & infrastructure | 17 | 5% | 19 | 6% | even |
| Consumer services & leisure | 9 | 3% | 7 | 2% | even |
| Commerce & trade | 8 | 3% | 17 | 5% | Zscaler |
| Health care | 8 | 3% | 6 | 2% | even |
| Hospitality & travel | 8 | 3% | 4 | 1% | even |
| Media & content | 7 | 2% | 7 | 2% | even |
| Property & construction | 6 | 2% | 6 | 2% | even |
| Public, community & associations | 4 | 1% | 4 | 1% | even |
| Transport, logistics & rental | 3 | 1% | 6 | 2% | even |
| Segment | Cisco ASA | share | Zscaler | share | Leans |
|---|---|---|---|---|---|
| United States | 216 | 68% | 214 | 66% | even |
| United Kingdom | 24 | 8% | 24 | 7% | even |
| Canada | 10 | 3% | 14 | 4% | even |
| Germany | 9 | 3% | 9 | 3% | even |
| France | 8 | 3% | 9 | 3% | even |
| India | 8 | 3% | 5 | 2% | even |
| Italy | 5 | 2% | – | – | outside top 12 |
| Australia | 3 | 1% | 9 | 3% | even |
| Singapore | 3 | 1% | 3 | 1% | even |
| Czechia | 2 | 1% | – | – | outside top 12 |
| Denmark | 2 | 1% | – | – | outside top 12 |
| Ireland | 2 | 1% | 3 | 1% | even |
| Brazil | – | – | 5 | 2% | outside top 12 |
| Belgium | – | – | 4 | 1% | outside top 12 |
| Japan | – | – | 3 | 1% | outside top 12 |
| Segment | Cisco ASA | share | Zscaler | share | Leans |
|---|---|---|---|---|---|
| IT operations & business systems | 919 | 74% | 906 | 68% | Cisco ASA |
| Marketing & communications | 61 | 5% | 3 | 0% | Cisco ASA |
| Engineering (non-software) | 29 | 2% | 2 | 0% | Cisco ASA |
| Construction and civil | 16 | 1% | 2 | 0% | even |
| Sales | 13 | 1% | 103 | 8% | Zscaler |
| Finance & accounting | 11 | 1% | – | – | outside top 12 |
| Product, program & project management | 9 | 1% | 32 | 2% | even |
| Administration & office | 8 | 1% | 3 | 0% | even |
| Data & AI | 6 | 0% | 7 | 1% | even |
| Customer service & success | 5 | 0% | 31 | 2% | even |
| Software engineering | 5 | 0% | 37 | 3% | Zscaler |
| Logistics warehouse and transport | 4 | 0% | – | – | outside top 12 |
| General management & consulting | – | – | 15 | 1% | outside top 12 |
| Business development & strategy | – | – | 6 | 0% | outside top 12 |
The companies behind each column
Companies using Cisco ASA →
Companies using Zscaler →
network security zero trust ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Zscaler is named by 323 companies in job postings and Cisco ASA by 320; 40 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/cisco-asa-vs-zscaler)
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 ASA vs Zscaler: questions
Which is more used, Cisco ASA or Zscaler?
By companies naming it in their own job postings, Zscaler (323) over Cisco ASA (320). By website-and-DNS footprint, Zscaler (3,109 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Cisco ASA?
38% of Cisco ASA companies have 2 to 200 employees, against 21% for Zscaler. 41% of Cisco ASA companies have over 1,000 employees, against 53% for Zscaler.
Do companies run both?
40 companies name both in their postings, usually Cisco ASA in marketing and Zscaler 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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