# Companies using IBM Informix

11,730 companies in our data use IBM Informix, and 1,547 of them name it in job posts they wrote. Its share of job posts is shrinking, though 962 job posts still named it from October 2025 to August 2026. It comes up most in Software Engineer job posts.

Data as of November 9, 2026. Source: Sumble.

## Which companies name IBM Informix in the most job posts?

Social Insurance Institution has posted more jobs naming IBM Informix than any other company: 361. Social Insurance Institution is the newest of the five companies in the table, with its first job post naming it in July 2023.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Social Insurance Institution](https://sumble.com/orgs/zakład-ubezpieczen-społecznych) | 361 | 5 | "administrowanie motorami bazodanowymi Postgresql/EDB/Informix" (IT Process Support Position (wui) ci_22/2025, Mar 18, 2026) |
| [General Dynamics Information Technology](https://sumble.com/orgs/general-dynamics-information-technology) | 313 | 3 | "Sybase, Informix, SQL, and Imagery Production Chain" (systems administrator, Oct 31, 2026) |
| [AutoZone](https://sumble.com/orgs/autozone) | 197 | 15 | "…Oracle, MySQL, PostgreSQL, Informix, DB2 BI / ETL tools e.g.…" (systems engineer-am, Oct 22, 2026) |
| [Walmart](https://sumble.com/orgs/walmart) | 156 | 169 | "Maintain and improve legacy systems, including but not limited to Mainframe and Informix, ensuring their seamless integration with newer technologies." ((USA) Principal, Software Engineer, Apr 9, 2025) |
| [Luxoft](https://sumble.com/orgs/luxoft) | 129 | 5 | "Experience with Azure MI, Azure Database for Postgres, Azure Cosmos DB, Azure Analysis Services, and Informix." (Lead Data Architect, Sep 17, 2026) |

## Is hiring for IBM Informix growing?

IBM Informix turned up in a shrinking share of job posts: 0.43 in every 10,000 job posts from June to August 2026, compared with 0.51 from March to May. July 2026 was its lowest month since October 2025, at 0.38.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 100 | 1,413,673 | 0.71 |
| Nov 2025 | 90 | 1,822,119 | 0.49 |
| Dec 2025 | 51 | 1,236,103 | 0.41 |
| Jan 2026 | 98 | 1,828,002 | 0.54 |
| Feb 2026 | 109 | 1,856,647 | 0.59 |
| Mar 2026 | 99 | 1,850,711 | 0.53 |
| Apr 2026 | 100 | 1,728,886 | 0.58 |
| May 2026 | 78 | 1,821,509 | 0.43 |
| Jun 2026 | 97 | 1,909,496 | 0.51 |
| Jul 2026 | 69 | 1,815,180 | 0.38 |
| Aug 2026 | 71 | 1,835,698 | 0.39 |

## How many companies named IBM Informix in a job post for the first time in recent months?

36 companies named IBM Informix in a job post for the first time from June to August 2026, against 37 from March to May. Of the 1,547 companies whose job posts name it, 2.3% first named it from June to August.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 37 |
| June to August 2026 | 36 |
| October 2025 to August 2026 | 136 |

Companies whose first job post naming it appeared in that period. Recruiters, staffing firms and job boards are left out.

## How do we know which companies use IBM Informix?

1,547 companies name IBM Informix in their own job posts. The other 10,183 show up because employees list it on their profiles. 558 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name IBM Informix | 1,547 | 13% |
| Employees' profiles list IBM Informix | 10,183 | 87% |

## What size are the companies that use IBM Informix?

Companies with 50 to 999 employees are the largest group of IBM Informix users, at 45%. 2,368 of its companies have fewer than 50 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 20% | 22% |
| 50 to 999 | 45% | 38% |
| 1,000 to 5,000 | 20% | 17% |
| Over 5,000 | 15% | 23% |

## Where are IBM Informix companies based?

Spain is 2.7 times as common among IBM Informix companies as on the typical tech page, at 5%. The United States leads overall with 33%. Its companies are based in 143 countries and territories.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 3,671 | 33% | 43% |
| United Kingdom | 684 | 6.1% | 6.4% |
| Brazil | 626 | 5.6% | 2.8% |
| Spain | 559 | 5% | 1.8% |
| Germany | 480 | 4.3% | 4.4% |
| France | 403 | 3.6% | 4.6% |

## Which teams work with IBM Informix?

At 40 companies, the team named in IBM Informix job posts is IT, at least twice the next.

| Team | Companies |
|---|---:|
| IT | 40 |
| Its | 7 |
| Development | 5 |
| Engineering | 5 |
| IT applications | 5 |
| IT infrastructure | 5 |

## Which roles mention IBM Informix most?

Software Engineer is the most common role, in 22% of job posts naming IBM Informix. The top four roles cover 48% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Software Engineer | 22% | 216 | 57 | 44 |
| Database Administrator | 8.7% | 84 | 22 | 16 |
| IT Support | 8.7% | 84 | 21 | 12 |
| Data Engineer | 7.6% | 73 | 16 | 17 |
| Business Systems | 5% | 48 | 12 | 13 |
| Data Architect | 2.6% | 25 | 5 | 13 |

## Which companies started naming IBM Informix in job posts recently?

From April to August 2026, 42 companies with 50 or more employees posted their first job naming IBM Informix: 24 commercial, 8 mid-market and 10 enterprise. Kapital has the most job posts of the new mid-market companies, 4 from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [IFB International Freightbridge](https://sumble.com/orgs/ifb-international-freightbridge) | 4 |
| Commercial | [B/CORE](https://sumble.com/orgs/bridge-core) | 3 |
| Commercial | [Kastech Software Solutions Group](https://sumble.com/orgs/kastech-software-solutions-group) | 2 |
| Commercial | [act digital EMEA - Alter Solutions](https://sumble.com/orgs/alter-solutions) | 2 |
| Commercial | [Wittel](https://sumble.com/orgs/wittel) | 2 |
| Mid-market | [Kapital](https://sumble.com/orgs/kapital-latam) | 4 |
| Mid-market | [CEC Bank](https://sumble.com/orgs/cec-bank) | 2 |
| Mid-market | [UAMS - University of Arkansas for Medical Sciences](https://sumble.com/orgs/university-of-arkansas-for-medical-sciences) | 1 |
| Mid-market | [hiberus](https://sumble.com/orgs/hiberus-tecnologia) | 1 |
| Mid-market | [NAVWAR](https://sumble.com/orgs/naval-information-warfare-systems-command) | 1 |
| Enterprise | [Kyndryl India](https://sumble.com/orgs/kyndryl-india) | 3 |
| Enterprise | [Iveco Group](https://sumble.com/orgs/iveco-group) | 2 |
| Enterprise | [Synchrony](https://sumble.com/orgs/synchrony) | 2 |
| Enterprise | [UBS](https://sumble.com/orgs/ubs) | 1 |
| Enterprise | [IQVIA](https://sumble.com/orgs/iqvia) | 1 |

Companies that named IBM Informix in a job post for the first time between April and August 2026, ranked by their job posts in those months. AI-native companies get a group of their own, whatever their size. Recruiters and job boards are left out.

## What else do IBM Informix companies use?

IBM Informix companies are 19 times as likely as similar companies to use PowerBuilder: 5.4% of them, against 0.28%. Next is SAP Sybase: 19% of these companies use it, against 1% of similar ones.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| PowerBuilder | 50 | 5.4% | 0.28% | 19 times |
| SAP Sybase | 174 | 19% | 1% | 19 times |
| JSF | 107 | 12% | 0.82% | 14 times |
| Apache Struts | 113 | 12% | 0.9% | 14 times |
| Wildfly | 70 | 7.6% | 0.58% | 13 times |
| IBM Cloud | 49 | 5.3% | 0.41% | 13 times |
| IBM Tivoli | 49 | 5.3% | 0.42% | 12 times |
| Red Hat JBoss | 232 | 25% | 2% | 12 times |

Shares are out of the 926 companies whose job posts name IBM Informix, not counting firms whose job posts name almost every technology.

## Which project themes come up in IBM Informix job posts?

Digital transformation is the broadest theme in IBM Informix job posts (724); the most common specific one is Data Infrastructure Migration, at 433. Cloud Migration is next, in 62 job posts.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 724 |
| Data Infrastructure Migration | 433 |
| Cloud Migration | 62 |
| Microservices Migration | 49 |

- "Experience maintaining legacy infrastructure (such as IBM AIX servers and IBM Informix databases) and successfully executing strategic migrations, system upgrades, and refactoring initiatives onto modern enterprise platforms or virtualized architectures" (City of Phoenix, IT Analyst/Programmer III Systems Administrator - Phoenix Municipal Court, Nov 5, 2026)

## About this data

Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.

Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.

Sumble has a free plan, and the same data is available through its API and MCP server.

A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.

Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.