---
title: "Which companies in Japan use PostgreSQL?"
description: "株式会社ギークリー（GEEKLY）, Planisware and more. 311 companies hiring in Japan whose own job postings show they use PostgreSQL: 14 confirmed, 297 likely. Updated daily f"
canonical: https://jobspipe.dev/technologies/postgresql/jp
---

# Which companies in Japan use PostgreSQL?

> 株式会社ギークリー（GEEKLY）, Planisware and more. 311 companies hiring in Japan whose own job postings show they use PostgreSQL: 14 confirmed, 297 likely. Updated daily from live postings.

**Canonical URL:** https://jobspipe.dev/technologies/postgresql/jp

311 companies with postings in Japan use PostgreSQL according to their own job postings: 14 confirmed and 297 likely. The 2 listed below are confirmed users with at least 2 postings and a verified website; the rest are counted here but not named.

- **Confirmed companies:** 14
- **Likely companies:** 297
- **Category:** Databases
- **As of:** 25 Sep 2026

## Companies using PostgreSQL

| # | Company | Postings naming it | Last seen |
|---|---|---|---|
| 1 | [株式会社ギークリー（GEEKLY）](https://jobspipe.dev/hiring/geekly.co.jp) | 6 | 25 Sep 2026 |
| 2 | [Planisware](https://jobspipe.dev/hiring/planisware.com) | 5 | 25 Sep 2026 |

## By country

- [United States](https://jobspipe.dev/technologies/postgresql/us)
- [India](https://jobspipe.dev/technologies/postgresql/in)
- [Canada](https://jobspipe.dev/technologies/postgresql/ca)
- [United Kingdom](https://jobspipe.dev/technologies/postgresql/gb)
- [Brazil](https://jobspipe.dev/technologies/postgresql/br)
- [France](https://jobspipe.dev/technologies/postgresql/fr)
- [Germany](https://jobspipe.dev/technologies/postgresql/de)
- [Poland](https://jobspipe.dev/technologies/postgresql/pl)
- [Singapore](https://jobspipe.dev/technologies/postgresql/sg)

Worldwide: [Which companies use PostgreSQL?](https://jobspipe.dev/technologies/postgresql)

## Related

- [PostgreSQL by industry, country and company size](https://jobspipe.dev/companies-using/postgresql)
- [Companies hiring PostgreSQL roles in the last 30 days](https://jobspipe.dev/hiring/technology/postgresql)

## FAQ

### How many companies use PostgreSQL in Japan?

311 companies in Japan have job postings that show they use PostgreSQL, as of 25 Sep 2026. 14 are confirmed and 297 are likely.

### Which companies use PostgreSQL in Japan?

株式会社ギークリー（GEEKLY）, Planisware are among the confirmed PostgreSQL users with the most postings naming it in Japan. The full list on this page names 2 companies.

### How does JobsPipe know a company uses PostgreSQL?

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 PostgreSQL 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 PostgreSQL, 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":["postgresql"],"tier_min":"confirmed","company_country_code_or":["JP"],"limit":25}'
```


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