Amazon S3 VS iSCSI
As of 30 October 2026, iSCSI is named by 188 companies and Amazon S3 by 3,346; Amazon S3 skews to companies under 200 people (49% vs 39%), iSCSI to companies over 1,000 (36% vs 26%).
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: Amazon S3's script and mail records show on hundreds of thousands of small sites, iSCSI rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Amazon S3: 2–200 employees
- 49%
- iSCSI: 2–200 employees
- 39%
- Amazon S3: 1,000+ employees
- 26%
- iSCSI: 1,000+ employees
- 36%
- Postings per company, 90 days
- 3.1 · 2.6
- 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 | Amazon S3 | share | iSCSI | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 40 | 1% | – | – | outside top 12 |
| 2-10 employees | 264 | 8% | 7 | 4% | Amazon S3 |
| 11-50 employees | 557 | 17% | 27 | 14% | Amazon S3 |
| 51-200 employees | 809 | 24% | 39 | 21% | Amazon S3 |
| 201-500 employees | 468 | 14% | 33 | 18% | iSCSI |
| 501-1000 employees | 338 | 10% | 15 | 8% | Amazon S3 |
| 1001-5000 employees | 459 | 14% | 40 | 21% | iSCSI |
| 5001-10000 employees | 119 | 4% | 6 | 3% | even |
| 10,001+ employees | 292 | 9% | 21 | 11% | iSCSI |
| Segment | Amazon S3 | share | iSCSI | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 1,854 | 55% | 103 | 55% | even |
| Business & finance services | 640 | 19% | 24 | 13% | Amazon S3 |
| Manufacturing & industry | 257 | 8% | 29 | 15% | iSCSI |
| Media & content | 125 | 4% | 3 | 2% | Amazon S3 |
| Consumer services & leisure | 89 | 3% | 2 | 1% | even |
| Public, community & associations | 69 | 2% | 6 | 3% | even |
| Commerce & trade | 68 | 2% | 6 | 3% | even |
| Utilities & infrastructure | 66 | 2% | 5 | 3% | even |
| Health care | 46 | 1% | 5 | 3% | even |
| Transport, logistics & rental | 39 | 1% | 1 | 1% | even |
| Automotive | 30 | 1% | 2 | 1% | even |
| Hospitality & travel | 26 | 1% | – | – | outside top 12 |
| Property & construction | – | – | 2 | 1% | outside top 12 |
| Segment | Amazon S3 | share | iSCSI | share | Leans |
|---|---|---|---|---|---|
| United States | 2,203 | 66% | 124 | 66% | even |
| United Kingdom | 245 | 7% | 6 | 3% | Amazon S3 |
| Germany | 133 | 4% | 10 | 5% | even |
| India | 117 | 3% | 5 | 3% | even |
| France | 75 | 2% | 2 | 1% | even |
| Canada | 69 | 2% | 6 | 3% | even |
| Australia | 51 | 2% | 2 | 1% | even |
| Singapore | 45 | 1% | – | – | outside top 12 |
| Brazil | 33 | 1% | 3 | 2% | even |
| Netherlands | 32 | 1% | 2 | 1% | even |
| Japan | 26 | 1% | – | – | outside top 12 |
| Spain | 23 | 1% | – | – | outside top 12 |
| Italy | – | – | 5 | 3% | outside top 12 |
| Poland | – | – | 4 | 2% | outside top 12 |
| Belgium | – | – | 2 | 1% | outside top 12 |
| Segment | Amazon S3 | share | iSCSI | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 6,361 | 44% | 106 | 15% | Amazon S3 |
| Data & AI | 4,018 | 28% | 3 | 0% | Amazon S3 |
| IT operations & business systems | 1,820 | 13% | 345 | 50% | iSCSI |
| Product, program & project management | 237 | 2% | 8 | 1% | even |
| Customer service & success | 138 | 1% | 13 | 2% | even |
| Engineering (non-software) | 129 | 1% | 33 | 5% | iSCSI |
| Sales | 106 | 1% | 45 | 7% | iSCSI |
| Finance & accounting | 24 | 0% | – | – | outside top 12 |
| General management & consulting | 22 | 0% | – | – | outside top 12 |
| Unclassified | 20 | 0% | – | – | outside top 12 |
| Quality, safety & environment | 16 | 0% | 6 | 1% | even |
| Arts media and entertainment | 14 | 0% | 1 | 0% | even |
| Logistics warehouse and transport | – | – | 1 | 0% | outside top 12 |
| Skilled trades and field service | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using Amazon S3 →
Companies using iSCSI →
storage systems ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
iSCSI is named by 188 companies in job postings and Amazon S3 by 3,346; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/amazon-s3-vs-iscsi)
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.
Amazon S3 vs iSCSI: questions
Which is more used, Amazon S3 or iSCSI?
By companies naming it in their own job postings, Amazon S3 (3,346) over iSCSI (188). By website-and-DNS footprint, iSCSI (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Amazon S3?
49% of Amazon S3 companies have 2 to 200 employees, against 39% for iSCSI. 26% of Amazon S3 companies have over 1,000 employees, against 36% for iSCSI.
Do companies run both?
0 companies name both in their postings, usually Amazon S3 in marketing and iSCSI 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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