iSCSI VS VAST Data
As of 30 October 2026, VAST Data is named by 101 companies and iSCSI by 188; iSCSI skews to companies under 200 people (39% vs 48%), VAST Data to companies over 1,000 (17% vs 36%).
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: iSCSI's script and mail records show on hundreds of thousands of small sites, VAST Data rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- iSCSI: 2–200 employees
- 39%
- VAST Data: 2–200 employees
- 48%
- iSCSI: 1,000+ employees
- 36%
- VAST Data: 1,000+ employees
- 17%
- Postings per company, 90 days
- 2.6 · 3.1
- 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 | iSCSI | share | VAST Data | share | Leans |
|---|---|---|---|---|---|
| 2-10 employees | 7 | 4% | 13 | 13% | VAST Data |
| 11-50 employees | 27 | 14% | 17 | 17% | VAST Data |
| 51-200 employees | 39 | 21% | 18 | 18% | iSCSI |
| 201-500 employees | 33 | 18% | 18 | 18% | even |
| 501-1000 employees | 15 | 8% | 17 | 17% | VAST Data |
| 1001-5000 employees | 40 | 21% | 9 | 9% | iSCSI |
| 5001-10000 employees | 6 | 3% | 3 | 3% | even |
| 10,001+ employees | 21 | 11% | 5 | 5% | iSCSI |
| Self-employed | – | – | 1 | 1% | outside top 12 |
| Segment | iSCSI | share | VAST Data | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 103 | 55% | 60 | 59% | VAST Data |
| Manufacturing & industry | 29 | 15% | 8 | 8% | iSCSI |
| Business & finance services | 24 | 13% | 16 | 16% | VAST Data |
| Commerce & trade | 6 | 3% | 1 | 1% | iSCSI |
| Public, community & associations | 6 | 3% | 3 | 3% | even |
| Health care | 5 | 3% | – | – | outside top 12 |
| Utilities & infrastructure | 5 | 3% | – | – | outside top 12 |
| Media & content | 3 | 2% | 11 | 11% | VAST Data |
| Automotive | 2 | 1% | 1 | 1% | even |
| Consumer services & leisure | 2 | 1% | 1 | 1% | even |
| Property & construction | 2 | 1% | – | – | outside top 12 |
| Transport, logistics & rental | 1 | 1% | – | – | outside top 12 |
| Segment | iSCSI | share | VAST Data | share | Leans |
|---|---|---|---|---|---|
| United States | 124 | 66% | 74 | 73% | VAST Data |
| Germany | 10 | 5% | 1 | 1% | iSCSI |
| Canada | 6 | 3% | 1 | 1% | iSCSI |
| United Kingdom | 6 | 3% | 9 | 9% | VAST Data |
| India | 5 | 3% | 1 | 1% | even |
| Italy | 5 | 3% | – | – | outside top 12 |
| Poland | 4 | 2% | – | – | outside top 12 |
| Brazil | 3 | 2% | – | – | outside top 12 |
| Australia | 2 | 1% | 2 | 2% | even |
| Belgium | 2 | 1% | – | – | outside top 12 |
| France | 2 | 1% | 3 | 3% | even |
| Netherlands | 2 | 1% | – | – | outside top 12 |
| Singapore | – | – | 2 | 2% | outside top 12 |
| Austria | – | – | 1 | 1% | outside top 12 |
| China | – | – | 1 | 1% | outside top 12 |
| Spain | – | – | 1 | 1% | outside top 12 |
| Finland | – | – | 1 | 1% | outside top 12 |
| Segment | iSCSI | share | VAST Data | share | Leans |
|---|---|---|---|---|---|
| IT operations & business systems | 345 | 50% | 80 | 20% | iSCSI |
| Software engineering | 106 | 15% | 70 | 17% | even |
| Sales | 45 | 7% | 44 | 11% | VAST Data |
| Engineering (non-software) | 33 | 5% | 12 | 3% | even |
| Customer service & success | 13 | 2% | 5 | 1% | even |
| Product, program & project management | 8 | 1% | 25 | 6% | VAST Data |
| Quality, safety & environment | 6 | 1% | – | – | outside top 12 |
| Data & AI | 3 | 0% | 17 | 4% | VAST Data |
| Arts media and entertainment | 1 | 0% | – | – | outside top 12 |
| Logistics warehouse and transport | 1 | 0% | – | – | outside top 12 |
| Skilled trades and field service | 1 | 0% | – | – | outside top 12 |
| Marketing & communications | – | – | 18 | 4% | outside top 12 |
| General management & consulting | – | – | 7 | 2% | outside top 12 |
| Business development & strategy | – | – | 3 | 1% | outside top 12 |
| Finance & accounting | – | – | 2 | 0% | outside top 12 |
| Travel, leisure & events | – | – | 2 | 0% | outside top 12 |
The companies behind each column
Companies using iSCSI →
Companies using VAST Data →
storage systems ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
VAST Data is named by 101 companies in job postings and iSCSI by 188; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/iscsi-vs-vast-data)
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.
iSCSI vs VAST Data: questions
Which is more used, iSCSI or VAST Data?
By companies naming it in their own job postings, iSCSI (188) over VAST Data (101). By website-and-DNS footprint, VAST Data (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses iSCSI?
39% of iSCSI companies have 2 to 200 employees, against 48% for VAST Data. 36% of iSCSI companies have over 1,000 employees, against 17% for VAST Data.
Do companies run both?
0 companies name both in their postings, usually iSCSI in marketing and VAST Data 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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