---
title: "Which companies use IBM Mainframe (z/OS)?"
description: "Kyndryl, Infosys, Ensono, Broadcom and more. 2,595 companies whose own job postings show they use IBM Mainframe (z/OS): 136 confirmed, 2,459 likely."
canonical: https://jobspipe.dev/technologies/ibm-mainframe
---

# Which companies use IBM Mainframe (z/OS)?

> Kyndryl, Infosys, Ensono, Broadcom and more. 2,595 companies whose own job postings show they use IBM Mainframe (z/OS): 136 confirmed, 2,459 likely. Updated daily from live postings.

**Canonical URL:** https://jobspipe.dev/technologies/ibm-mainframe

2,595 companies use IBM Mainframe (z/OS) according to their own job postings: 136 confirmed and 2,459 likely, across 11,018 job postings that name it. The 72 listed below are confirmed users with at least 2 postings and a verified website; the rest are counted here but not named.

- **Confirmed companies:** 136
- **Likely companies:** 2,459
- **Postings naming IBM Mainframe (z/OS):** 11,018
- **Category:** Developer tools
- **As of:** 25 Sep 2026

## Companies using IBM Mainframe (z/OS)

| # | Company | Postings naming it | Last seen |
|---|---|---|---|
| 1 | [Kyndryl](https://jobspipe.dev/hiring/kyndryl.com) | 141 | 7 Oct 2026 |
| 2 | [Infosys](https://jobspipe.dev/hiring/infosys.com) | 100 | 7 Oct 2026 |
| 3 | [Ensono](https://jobspipe.dev/hiring/ensono.com) | 70 | 8 Oct 2026 |
| 4 | [Broadcom](https://jobspipe.dev/hiring/broadcom.com) | 62 | 7 Oct 2026 |
| 5 | [BMC Software](https://jobspipe.dev/hiring/bmc.com) | 56 | 7 Oct 2026 |
| 6 | [The Depository Trust & Clearing Corporation (DTCC)](https://jobspipe.dev/hiring/dtcc.com) | 55 | 8 Oct 2026 |
| 7 | [Rocket Software](https://jobspipe.dev/hiring/rocketsoftware.com) | 41 | 7 Oct 2026 |
| 8 | [Wells Fargo](https://jobspipe.dev/hiring/wellsfargo.com) | 32 | 6 Oct 2026 |
| 9 | [PNC](https://jobspipe.dev/hiring/pnc.com) | 20 | 6 Oct 2026 |
| 10 | [Travel + Leisure Co.](https://jobspipe.dev/hiring/travelandleisureco.com) | 19 | 1 Oct 2026 |
| 11 | [First Citizens Bank](https://jobspipe.dev/hiring/firstcitizens.com) | 18 | 6 Oct 2026 |
| 12 | [Inetum](https://jobspipe.dev/hiring/inetum.com) | 18 | 6 Oct 2026 |
| 13 | [Scotiabank](https://jobspipe.dev/hiring/scotiabank.com) | 17 | 7 Oct 2026 |
| 14 | [Citech](https://jobspipe.dev/hiring/citech.fr) | 15 | 8 Oct 2026 |
| 15 | [IT Link](https://jobspipe.dev/hiring/itlink.fr) | 13 | 8 Oct 2026 |
| 16 | [Morgan Stanley](https://jobspipe.dev/hiring/morganstanley.com) | 13 | 7 Oct 2026 |
| 17 | [Brown Brothers Harriman](https://jobspipe.dev/hiring/bbh.com) | 12 | 2 Oct 2026 |
| 18 | [Consort Group](https://jobspipe.dev/hiring/consort-group.com) | 12 | 29 Sep 2026 |
| 19 | [Zenith Infotech](https://jobspipe.dev/hiring/zenithinfotech.com.sg) | 12 | 5 Oct 2026 |
| 20 | [Cloud and Things](https://jobspipe.dev/hiring/cloudandthings.com) | 10 | 6 Oct 2026 |
| 21 | [GFT TECHNOLOGIES](https://jobspipe.dev/hiring/gft.com) | 10 | 29 Sep 2026 |
| 22 | [R+V Versicherung AG](https://jobspipe.dev/hiring/ruv.de) | 10 | 24 Sep 2026 |
| 23 | [NEXT](https://jobspipe.dev/hiring/nextandco.com.au) | 9 | 2 Oct 2026 |
| 24 | [Infotel](https://jobspipe.dev/hiring/infotel.com) | 8 | 5 Oct 2026 |
| 25 | [Viveris](https://jobspipe.dev/hiring/viveris.fr) | 8 | 6 Oct 2026 |
| 26 | [Babel](https://jobspipe.dev/hiring/babelgroup.com) | 7 | 4 Oct 2026 |
| 27 | [Boston Consulting Group (BCG)](https://jobspipe.dev/hiring/bcg.com) | 7 | 29 Sep 2026 |
| 28 | [BRQ Digital Solutions](https://jobspipe.dev/hiring/brq.com) | 7 | 7 Oct 2026 |
| 29 | [Crédit Agricole Technologies et Services](https://jobspipe.dev/hiring/carrieres.creditagricoletechnologiesservices.com) | 7 | 7 Oct 2026 |
| 30 | [Finanz Informatik](https://jobspipe.dev/hiring/f-i.de) | 7 | 7 Oct 2026 |
| 31 | [Infinite Computer Solutions](https://jobspipe.dev/hiring/infinite.com) | 7 | 7 Oct 2026 |
| 32 | [KPMG](https://jobspipe.dev/hiring/kpmg.com) | 7 | 7 Oct 2026 |
| 33 | [P&V Group](https://jobspipe.dev/hiring/groupepv.coop) | 7 | 25 Sep 2026 |
| 34 | [Advanced Systems Design](https://jobspipe.dev/hiring/asd-web.com) | 6 | 29 Sep 2026 |
| 35 | [Coforge](https://jobspipe.dev/hiring/coforge.com) | 6 | 6 Oct 2026 |
| 36 | [Deutsche WertpapierService Bank AG](https://jobspipe.dev/hiring/dwpbank.de) | 5 | 4 Oct 2026 |
| 37 | [iSupplier](https://jobspipe.dev/hiring/isupplier.fr) | 5 | 24 Sep 2026 |
| 38 | [LCL](https://jobspipe.dev/hiring/lcl.fr) | 5 | 6 Oct 2026 |
| 39 | [Northwestern Mutual](https://jobspipe.dev/hiring/northwesternmutual.com) | 5 | 29 Sep 2026 |
| 40 | [Seneca Resources](https://jobspipe.dev/hiring/senecahq.com) | 5 | 30 Sep 2026 |
| 41 | [Sports Illustrated](https://jobspipe.dev/hiring/si.com) | 5 | 29 Sep 2026 |
| 42 | [Thrivent](https://jobspipe.dev/hiring/thrivent.com) | 5 | 4 Sep 2026 |
| 43 | [Creospan Private Limited](https://jobspipe.dev/hiring/creospan.com) | 4 | 5 Oct 2026 |
| 44 | [TM Floyd & Company (TMF)](https://jobspipe.dev/hiring/tmfloyd.com) | 4 | 7 Oct 2026 |
| 45 | [Arkhya Tech. Inc.](https://jobspipe.dev/hiring/arkhyatech.com) | 3 | 28 Sep 2026 |
| 46 | [ASSYST, Inc.](https://jobspipe.dev/hiring/assyst.net) | 3 | 7 Oct 2026 |
| 47 | [Exprivia IT Solutions (Asia)](https://jobspipe.dev/hiring/exprivia.com) | 3 | 30 Sep 2026 |
| 48 | [Ingram Micro](https://jobspipe.dev/hiring/ingrammicro.com) | 3 | 25 Sep 2026 |
| 49 | [Oliver James](https://jobspipe.dev/hiring/oliverjames.com) | 3 | 5 Oct 2026 |
| 50 | [Recruber](https://jobspipe.dev/hiring/recruber.com) | 3 | 7 Oct 2026 |
| 51 | [TECKpert](https://jobspipe.dev/hiring/teckpert.com) | 3 | 29 Sep 2026 |
| 52 | [TJX Canada – Winners, Marshalls, HomeSense](https://jobspipe.dev/hiring/jobs.tjx.com) | 3 | 25 Sep 2026 |
| 53 | [Toyota North America](https://jobspipe.dev/hiring/careers.toyota.com) | 3 | 5 Oct 2026 |
| 54 | [UMB Bank](https://jobspipe.dev/hiring/umb.com) | 3 | 25 Sep 2026 |
| 55 | [Agility Partners](https://jobspipe.dev/hiring/agilitypartners.io) | 2 | 28 Sep 2026 |
| 56 | [Cyber Space Technologies LLC](https://jobspipe.dev/hiring/cyberspaceinc.com) | 2 | 25 Sep 2026 |
| 57 | [First Horizon Bank](https://jobspipe.dev/hiring/firsthorizon.com) | 2 | 4 Oct 2026 |
| 58 | [GTECH LLC](https://jobspipe.dev/hiring/greattechglobal.com) | 2 | 25 Sep 2026 |
| 59 | [GuidePoint Security](https://jobspipe.dev/hiring/guidepointsecurity.com) | 2 | 2 Oct 2026 |
| 60 | [HealthFitness](https://jobspipe.dev/hiring/healthfitness.com) | 2 | 30 Sep 2026 |
| 61 | [Hexaware Technologies](https://jobspipe.dev/hiring/hexaware.com) | 2 | 27 Sep 2026 |
| 62 | [Impellam Group](https://jobspipe.dev/hiring/impellam.com) | 2 | 28 Sep 2026 |
| 63 | [OP](https://jobspipe.dev/hiring/op.tech) | 2 | 25 Sep 2026 |
| 64 | [SCC France](https://jobspipe.dev/hiring/france.scc.com) | 2 | 25 Sep 2026 |
| 65 | [Skandia](https://jobspipe.dev/hiring/skandia.se) | 2 | 29 Sep 2026 |
| 66 | [SQ - Solutions](https://jobspipe.dev/hiring/sq-solutions.de) | 2 | 25 Sep 2026 |
| 67 | [TD Securities](https://jobspipe.dev/hiring/tdsecurities.com) | 2 | 1 Oct 2026 |
| 68 | [Technologix IT Inc](https://jobspipe.dev/hiring/technologixit.com) | 2 | 25 Sep 2026 |
| 69 | [Thompsons HR Consulting Pvt Ltd](https://jobspipe.dev/hiring/thompsonshr.com) | 2 | 8 Sep 2026 |
| 70 | [Tryg](https://jobspipe.dev/hiring/tryg.dk) | 2 | 23 Sep 2026 |
| 71 | [UAB Medicine](https://jobspipe.dev/hiring/uabmedicine.org) | 2 | 30 Sep 2026 |
| 72 | [Yorkshire Global Solutions Inc.](https://jobspipe.dev/hiring/ygs-us.com) | 2 | 25 Sep 2026 |

## Recently adopted

- [Archer Recruitment](https://jobspipe.dev/hiring/archer.ie), first seen 7 Oct 2026
- [Norfolk Southern](https://jobspipe.dev/hiring/norfolksouthern.com), first seen 7 Oct 2026
- [RWD Consulting, LLC](https://jobspipe.dev/hiring/rwdconsultingllc.com), first seen 7 Oct 2026
- [Blue Chip Talent](https://jobspipe.dev/hiring/bctalent.com), first seen 7 Oct 2026
- [SoHoft](https://jobspipe.dev/hiring/sohoft.fr), first seen 7 Oct 2026
- [General Dynamics](https://jobspipe.dev/hiring/generaldynamics.com), first seen 7 Oct 2026
- [Nexus Corporation](https://jobspipe.dev/hiring/nexusgroup.bh), first seen 7 Oct 2026
- [SMARTFOX](https://jobspipe.dev/hiring/smartfox.llc), first seen 7 Oct 2026
- [RemoteHunter](https://jobspipe.dev/hiring/remotehunter.com), first seen 7 Oct 2026
- [K-LAGAN](https://jobspipe.dev/hiring/k-lagan.com), first seen 7 Oct 2026
- [Goodman Masson Deutschland](https://jobspipe.dev/hiring/goodmanmasson.de), first seen 7 Oct 2026
- [FR Consultancy](https://jobspipe.dev/hiring/frconsultancy.com.au), first seen 6 Oct 2026

## Roles that name it most

- Software Developers
- Systems Administrators
- Systems Analysts
- Information and Communications Technology Services Managers
- Database Designers and Administrators
- Information and Communications Technology User Support Technicians
- Computer Network Professionals
- Applications Programmers

## By country

- [United States](https://jobspipe.dev/technologies/ibm-mainframe/us)
- [India](https://jobspipe.dev/technologies/ibm-mainframe/in)
- [Canada](https://jobspipe.dev/technologies/ibm-mainframe/ca)
- [France](https://jobspipe.dev/technologies/ibm-mainframe/fr)
- [Brazil](https://jobspipe.dev/technologies/ibm-mainframe/br)
- [Mexico](https://jobspipe.dev/technologies/ibm-mainframe/mx)
- [Spain](https://jobspipe.dev/technologies/ibm-mainframe/es)
- [United Kingdom](https://jobspipe.dev/technologies/ibm-mainframe/gb)
- [Germany](https://jobspipe.dev/technologies/ibm-mainframe/de)
- [Singapore](https://jobspipe.dev/technologies/ibm-mainframe/sg)

## FAQ

### How many companies use IBM Mainframe (z/OS)?

2,595 companies have job postings that show they use IBM Mainframe (z/OS), as of 25 Sep 2026. 136 are confirmed and 2,459 are likely.

### Which companies use IBM Mainframe (z/OS)?

Kyndryl, Infosys, Ensono, Broadcom, BMC Software are among the confirmed IBM Mainframe (z/OS) users with the most postings naming it. The full list on this page names 72 companies.

### Where are the companies that use IBM Mainframe (z/OS) hiring?

Most postings that name IBM Mainframe (z/OS) are in United States, India, Canada. Country is where the job is, not where the company is headquartered.

### Which roles ask for IBM Mainframe (z/OS)?

Software Developers, Systems Administrators, Systems Analysts are the occupations whose postings name IBM Mainframe (z/OS) most often.

### How does JobsPipe know a company uses IBM Mainframe (z/OS)?

From the company's own job postings. Each posting is read for the technologies it names, and every company and technology pair is graded: confirmed when two independent checks agree on IBM Mainframe (z/OS) in at least one posting, likely when it is a stated requirement or appears in two separate postings. A single passing mention is not counted here. It is evidence of a team working with IBM Mainframe (z/OS), not a purchase record.

## Reproduce

```bash
curl -X POST https://api.jobspipe.dev/v1/companies/search -H "Authorization: Bearer $JOBSPIPE_API_KEY" -H "Content-Type: application/json" -d '{"company_technology_slug_or":["ibm-mainframe"],"tier_min":"confirmed","limit":25}'
```


---
Try it with no key: `curl -d '{"limit":3}' https://api.jobspipe.dev/v1/sandbox/jobs/search`. AI agents: the full machine-readable index of this site is https://jobspipe.dev/llms.txt?src=md-twin - API quickstart, MCP server, pricing. Free key (1,000 jobs to start): https://jobspipe.dev/signup