Unix alternatives
As of 4 November 2026, 28 linux unix are named by companies instead of Unix: Linux by 15,946 companies, Red Hat Enterprise Linux by 2,259, Ubuntu by 1,521.
As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- Unix, companies in postings
- 2,662
- Most used alternative
- Linux · 15,946
- Fastest hiring, 90 days
- Linux
- Alternatives ranked
- 28
- Catalogue
- T-1.0.1-prov
linux unix companies choose instead of Unix
Companies naming each tool in their own postings, and postings in the last 90 days. Bars are relative to the category leader.
| # | Alternative | Companies | companies | vs Unix | postings, 90 d | Compare |
|---|---|---|---|---|---|---|
| 1 | LinuxLinux Foundation | 15,946 | 599% | 83,661 | Unix vs Linux → | |
| 2 | Red Hat Enterprise LinuxRed Hat | 2,259 | 85% | 9,445 | Unix vs Red Hat Enterprise Linux → | |
| 3 | UbuntuCanonical | 1,521 | 57% | 3,441 | Unix vs Ubuntu → | |
| 4 | CentOSRed Hat | 765 | 29% | 1,664 | Unix vs CentOS → | |
| 5 | DebianDebian Project | 722 | 27% | 1,314 | Unix vs Debian → | |
| 6 | IBM AIXIBM | 383 | 14% | 843 | Unix vs IBM AIX → | |
| 7 | Oracle SolarisOracle | 339 | 13% | 1,126 | Unix vs Oracle Solaris → | |
| 8 | eBPFLinux Foundation | 284 | 11% | 933 | Unix vs eBPF → | |
| 9 | 259 | 10% | 412 | Unix vs cron → | ||
| 10 | SUSE LinuxSUSE | 230 | 9% | 727 | Unix vs SUSE Linux → | |
| 11 | Rocky LinuxRocky Enterprise Software Foundation | 208 | 8% | 529 | Unix vs Rocky Linux → | |
| 12 | 177 | 7% | 434 | Unix vs SELinux → | ||
| 13 | AlmaLinuxAlmaLinux OS Foundation | 143 | 5% | 204 | soon | |
| 14 | POSIXIEEE | 140 | 5% | 288 | Unix vs POSIX → | |
| 15 | Oracle LinuxOracle | 98 | 4% | 351 | soon | |
| 16 | systemdsystemd project | 83 | 3% | 194 | soon | |
| 17 | Amazon LinuxAmazon Web Services | 64 | 2% | 248 | soon | |
| 18 | AppArmorCanonical | 59 | 2% | 110 | soon | |
| 19 | HP-UXHewlett Packard Enterprise | 53 | 2% | 120 | soon | |
| 20 | FedoraFedora Project | 52 | 2% | 178 | soon | |
| 21 | FreeBSDFreeBSD Foundation | 52 | 2% | 339 | soon | |
| 22 | NixOSNixOS Foundation | 50 | 2% | 210 | soon | |
| 23 | dmesgLinux Foundation | 44 | 2% | 74 | soon | |
| 24 | journalctlsystemd project | 37 | 1% | 46 | soon | |
| 25 | eXpress Data Path (XDP)Linux Foundation | 37 | 1% | 78 | soon | |
| 26 | ext4Linux kernel community | 24 | 1% | 52 | soon | |
| 27 | grepGNU Project | 21 | 1% | 36 | soon | |
| 28 | auditdLinux Foundation | 17 | 1% | 41 | soon |
Filter on any of them, or on Unix users who also name an alternative, and open the person who owns the stack.
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28 linux unix are named by companies instead of Unix: Linux by 15,946 companies, Red Hat Enterprise Linux by 2,259, Ubuntu by 1,521, measured from their own job postings. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/unix/alternatives)
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 →
- RankingCompanies whose own postings name the tool as the team's system, from the Breaknorm technology catalogue T-1.0.1-prov. Editions are folded into their parent product.
- 90-day postingsOpen postings first seen or posted in the last 90 days that name the tool.
- Not includedRatings, prices, feature claims, sponsored positions.
Unix alternatives: questions
What is the most used alternative to Unix?
Linux: 15,946 companies name it in their own job postings, against 2,662 for Unix.
How is this list ranked?
By the number of companies whose own postings name the tool as the team's system (Breaknorm technology catalogue T-1.0.1-prov), then by postings in the last 90 days. No ratings, no vendor input, no sponsored positions.
Does this say which is better?
No. It says who uses what, by company size, industry and country, so you can see which tools companies like yours choose. For features and prices, read the vendors.
Can I get the companies on any of these?
Yes: click the tool, see the first 20 companies, and sign up for the full list with verified e-mails. Counting is free.
Get these companies your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on Unix
or on what replaces it
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