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mainframe midrange, ranked by real usage_

As of 4 November 2026, IBM i leads mainframe midrange with 1,000 companies naming it in job postings, ahead of IBM IMS at 403.

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Leader
IBM i · 1,000
Runner-up
IBM IMS · 403
Most hiring, 90 days
IBM i
Highest postings per company
VSAM
Catalogue
T-1.0.1-prov
3,505companies across the category
29%of them on IBM i
12,158postings naming a mainframe midrange in 90 days
32tools with enough evidence to rank
02 — Ranking

Every mainframe midrange we can measure

Companies naming the tool, and postings naming it in the last 90 days. Bars are relative to the leader.

#ToolCompaniescompaniesPostings, 90 dayspostingsper company
1
IBM iIBM
1,000
3,7333.7
2
IBM IMSIBM
403
1,3253.3
3
JCLIBM
350
1,3123.7
4
CICSIBM
309
1,0973.6
5
z/OSIBM
257
1,0454.1
6
VSAMIBM
126
6525.2
7
IBM ZIBM
107
3763.5
8
IBM TSOIBM
105
2092.0
9
IBM MVSIBM
92
2172.4
10
RACFIBM
75
2313.1
11
ISPFIBM
65
1201.8
12
EndevorBroadcom
53
1382.6
13
TSO/ISPFIBM
53
1833.5
14
SMP/EIBM
43
1894.4
15
IBM Hardware Management ConsoleIBM
40
902.3
16
TurnoverSoftlanding
40
541.4
17
SDSFIBM
36
1002.8
18
AdabasSoftware AG
35
1444.1
19
ChangeManOpenText
35
1153.3
20
IDMSBroadcom
33
551.7
21
IBM JES2IBM
29
883.0
22
IBM SMFIBM
28
1204.3
23
CA 7Broadcom
27
732.7
24
File-AIDBMC
27
752.8
25
ACF2Broadcom
22
884.0
26
CLISTIBM
22
602.7
27
IDCAMSIBM
19
713.7
28
BMC MainViewBMC
16
432.7
29
EasytrieveBroadcom
16
432.7
30
IBM 3270IBM
16
402.5
31
z/VMIBM
15
372.5
32
Stratus VOSStratus
11
353.2
03 — Head to head

Compare two tools

Same data, two columns: who chooses which by size, industry and country.

IBM i vs IBM IMS1,000 · 403IBM i vs JCL1,000 · 350IBM i vs CICS1,000 · 309IBM i vs z/OS1,000 · 257IBM i vs VSAM1,000 · 126IBM IMS vs JCL403 · 350IBM IMS vs CICS403 · 309IBM IMS vs z/OS403 · 257IBM IMS vs VSAM403 · 126JCL vs CICS350 · 309JCL vs z/OS350 · 257JCL vs VSAM350 · 126CICS vs z/OS309 · 257CICS vs VSAM309 · 126z/OS vs VSAM257 · 126
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

IBM i leads mainframe midrange with 1,000 companies naming it in job postings, ahead of IBM IMS at 403. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/category/mainframe-midrange)
How we know

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 →

  • CatalogueBreaknorm technology catalogue T-1.0.1-prov: 6,296 tools with vendor and category, editions folded into their parent.
  • CompaniesCompanies whose own postings name the tool as the team's system, any confidence. Candidate wish-lists excluded.
  • 90-day postingsOpen postings first seen or posted in the last 90 days that name the tool.
  • Not countedTools used by teams that do not post jobs, and companies without a career site we can read.
FAQ

mainframe midrange: questions

How is this ranking made?

By the number of companies whose own job postings name the tool as the team's system, from the Breaknorm technology catalogue (version T-1.0.1-prov). No vendor paid for a position and no editor chose the order.

Why is this different from review-site rankings?

Review sites rank by reviews collected. This ranks by companies hiring people to work in the tool, which is closer to seats in use. It under-counts tools used by teams that rarely post jobs.

What about product editions?

Editions and sub-products () are counted under the parent so no company is counted twice.

Can I get the companies behind a number?

Yes: click a tool, see the first 20, and sign up for the full list with verified e-mails. Counting is free.

Companies and people

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