---
title: "Which companies use FastAPI?"
description: "The Flex, Jack & Jill, payabl., EXL and more. 5,283 companies whose own job postings show they use FastAPI: 133 confirmed, 5,150 likely. Updated daily from live"
canonical: https://jobspipe.dev/technologies/fastapi
---

# Which companies use FastAPI?

> The Flex, Jack & Jill, payabl., EXL and more. 5,283 companies whose own job postings show they use FastAPI: 133 confirmed, 5,150 likely. Updated daily from live postings.

**Canonical URL:** https://jobspipe.dev/technologies/fastapi

5,283 companies use FastAPI according to their own job postings: 133 confirmed and 5,150 likely, across 15,705 job postings that name it. The 67 listed below are confirmed users with at least 2 postings and a verified website; the rest are counted here but not named.

- **Confirmed companies:** 133
- **Likely companies:** 5,150
- **Postings naming FastAPI:** 15,705
- **Category:** Web frameworks
- **As of:** 25 Sep 2026

## Companies using FastAPI

| # | Company | Postings naming it | Last seen |
|---|---|---|---|
| 1 | [The Flex](https://jobspipe.dev/hiring/theflex.global) | 74 | 26 Sep 2026 |
| 2 | [Jack & Jill](https://jobspipe.dev/hiring/jackandjill.ai) | 48 | 25 Sep 2026 |
| 3 | [payabl.](https://jobspipe.dev/hiring/payabl.com) | 35 | 22 Sep 2026 |
| 4 | [EXL](https://jobspipe.dev/hiring/exlservice.com) | 32 | 25 Sep 2026 |
| 5 | [Klaviyo](https://jobspipe.dev/hiring/klaviyo.com) | 30 | 19 Sep 2026 |
| 6 | [Iris Software](https://jobspipe.dev/hiring/iris.co.uk) | 28 | 26 Sep 2026 |
| 7 | [Workday](https://jobspipe.dev/hiring/workday.com) | 28 | 26 Sep 2026 |
| 8 | [Juniper Square](https://jobspipe.dev/hiring/junipersquare.com) | 23 | 22 Sep 2026 |
| 9 | [Commure](https://jobspipe.dev/hiring/commure.com) | 20 | 23 Sep 2026 |
| 10 | [Persistent Systems](https://jobspipe.dev/hiring/persistentsystems.com) | 19 | 21 Sep 2026 |
| 11 | [Dex](https://jobspipe.dev/hiring/dex.com) | 17 | 26 Sep 2026 |
| 12 | [Ema](https://jobspipe.dev/hiring/boema.com.au) | 17 | 22 Sep 2026 |
| 13 | [Fitch Group](https://jobspipe.dev/hiring/fitch.group) | 16 | 24 Sep 2026 |
| 14 | [Brillio](https://jobspipe.dev/hiring/brillio.com) | 15 | 25 Sep 2026 |
| 15 | [Jobright.ai](https://jobspipe.dev/hiring/jobright.ai) | 12 | 25 Sep 2026 |
| 16 | [NielsenIQ](https://jobspipe.dev/hiring/niq.com) | 12 | 24 Sep 2026 |
| 17 | [myTomorrows](https://jobspipe.dev/hiring/mytomorrows.com) | 10 | 21 Sep 2026 |
| 18 | [SeatGeek](https://jobspipe.dev/hiring/seatgeek.com) | 10 | 25 Sep 2026 |
| 19 | [Groupe SII](https://jobspipe.dev/hiring/sii-group.com) | 9 | 25 Sep 2026 |
| 20 | [9fin](https://jobspipe.dev/hiring/9fin.com) | 8 | 25 Sep 2026 |
| 21 | [AKASA](https://jobspipe.dev/hiring/akasa.com) | 7 | 5 Sep 2026 |
| 22 | [AZX](https://jobspipe.dev/hiring/azx.io) | 7 | 11 Sep 2026 |
| 23 | [Accrete](https://jobspipe.dev/hiring/accrete.ai) | 6 | 21 Sep 2026 |
| 24 | [Devoteam](https://jobspipe.dev/hiring/devoteam.com) | 6 | 25 Sep 2026 |
| 25 | [BT Group](https://jobspipe.dev/hiring/bt.com.au) | 5 | 25 Sep 2026 |
| 26 | [CN](https://jobspipe.dev/hiring/cn.ca) | 5 | 25 Sep 2026 |
| 27 | [Function Health](https://jobspipe.dev/hiring/tap.bio) | 5 | 25 Sep 2026 |
| 28 | [Mercury](https://jobspipe.dev/hiring/mercurybrasil.com) | 5 | 10 Sep 2026 |
| 29 | [Mindera](https://jobspipe.dev/hiring/mindera.com) | 5 | 24 Sep 2026 |
| 30 | [TRACTIAN](https://jobspipe.dev/hiring/tractian.com) | 5 | 25 Sep 2026 |
| 31 | [Twine](https://jobspipe.dev/hiring/twine.net) | 5 | 25 Sep 2026 |
| 32 | [Arbital Health](https://jobspipe.dev/hiring/arbitalhealth.com) | 4 | 19 Aug 2026 |
| 33 | [BillionToOne](https://jobspipe.dev/hiring/billiontoone.com) | 4 | 13 Sep 2026 |
| 34 | [envelio GmbH](https://jobspipe.dev/hiring/envelio.com) | 4 | 26 Sep 2026 |
| 35 | [Lendable](https://jobspipe.dev/hiring/lendable.co.uk) | 4 | 7 Sep 2026 |
| 36 | [Rock Encantech](https://jobspipe.dev/hiring/rockencantech.com.br) | 4 | 22 Sep 2026 |
| 37 | [Softeq](https://jobspipe.dev/hiring/softeq.com) | 4 | 24 Sep 2026 |
| 38 | [A.P. Moller - Maersk](https://jobspipe.dev/hiring/maersk.com) | 3 | 25 Sep 2026 |
| 39 | [A*STAR - Agency for Science, Technology and Research](https://jobspipe.dev/hiring/a-star.edu.sg) | 3 | 24 Sep 2026 |
| 40 | [AceStack](https://jobspipe.dev/hiring/acestackllp.com) | 3 | 25 Sep 2026 |
| 41 | [Basis Research Institute](https://jobspipe.dev/hiring/basis.ai) | 3 | 30 Jul 2026 |
| 42 | [Bloomberg](https://jobspipe.dev/hiring/bloomberg.com) | 3 | 25 Sep 2026 |
| 43 | [CrowdStrike](https://jobspipe.dev/hiring/crowdstrike.com) | 3 | 25 Sep 2026 |
| 44 | [Emerson](https://jobspipe.dev/hiring/emersongroupinc.com) | 3 | 25 Sep 2026 |
| 45 | [GeorgiaTEK Systems Inc.](https://jobspipe.dev/hiring/georgiatek.com) | 3 | 25 Sep 2026 |
| 46 | [Machine Learning Reply](https://jobspipe.dev/hiring/reply.com) | 3 | 26 Sep 2026 |
| 47 | [Probity Inc.](https://jobspipe.dev/hiring/probity.com) | 3 | 24 Sep 2026 |
| 48 | [Re:Build Manufacturing](https://jobspipe.dev/hiring/rebuildmanufacturing.com) | 3 | 22 Sep 2026 |
| 49 | [Salk Institute for Biological Studies](https://jobspipe.dev/hiring/salk.edu) | 3 | 25 Sep 2026 |
| 50 | [Suade](https://jobspipe.dev/hiring/suade.org) | 3 | 1 Sep 2026 |
| 51 | [Worldpay](https://jobspipe.dev/hiring/worldpay.com) | 3 | 25 Sep 2026 |
| 52 | [Apptad](https://jobspipe.dev/hiring/apptad.com) | 2 | 24 Sep 2026 |
| 53 | [Ataccama](https://jobspipe.dev/hiring/ataccama.com) | 2 | 22 Sep 2026 |
| 54 | [Baufest](https://jobspipe.dev/hiring/baufest.com) | 2 | 25 Sep 2026 |
| 55 | [CLOSTERA](https://jobspipe.dev/hiring/clostera.com) | 2 | 24 Sep 2026 |
| 56 | [Codal](https://jobspipe.dev/hiring/codal.com) | 2 | 28 Aug 2026 |
| 57 | [Compass Consult](https://jobspipe.dev/hiring/compassconsult.co) | 2 | 25 Sep 2026 |
| 58 | [DBC Company](https://jobspipe.dev/hiring/dbccompany.com.br) | 2 | 25 Sep 2026 |
| 59 | [Faculty](https://jobspipe.dev/hiring/faculty.ai) | 2 | 6 Sep 2026 |
| 60 | [Findr](https://jobspipe.dev/hiring/findr-tech.com) | 2 | 25 Sep 2026 |
| 61 | [Fleetcraft](https://jobspipe.dev/hiring/fleetcraft.nl) | 2 | 25 Sep 2026 |
| 62 | [GridCARE](https://jobspipe.dev/hiring/gridcare.ai) | 2 | 18 Sep 2026 |
| 63 | [IC](https://jobspipe.dev/hiring/ic.com) | 2 | 25 Sep 2026 |
| 64 | [IMC](https://jobspipe.dev/hiring/imc.net.in) | 2 | 9 Jul 2025 |
| 65 | [Linde](https://jobspipe.dev/hiring/lindeco.com) | 2 | 25 Sep 2026 |
| 66 | [The Depository Trust & Clearing Corporation (DTCC)](https://jobspipe.dev/hiring/dtcc.com) | 2 | 24 Sep 2026 |
| 67 | [Tricon Solutions](https://jobspipe.dev/hiring/triconitsolutions.com) | 2 | 25 Sep 2026 |

## Recently adopted

- [DaCodes.](https://jobspipe.dev/hiring/dacodes.com), first seen 26 Sep 2026
- [Twine](https://jobspipe.dev/hiring/twine.net), first seen 25 Sep 2026
- [ARCITECH](https://jobspipe.dev/hiring/arcitech.ai), first seen 25 Sep 2026
- [Lincoln Financial](https://jobspipe.dev/hiring/lincolnfinancial.com), first seen 25 Sep 2026
- [Simform](https://jobspipe.dev/hiring/simform.com), first seen 25 Sep 2026
- [PagBank](https://jobspipe.dev/hiring/pagbank.com.br), first seen 25 Sep 2026
- [Avensys Consulting](https://jobspipe.dev/hiring/aven-sys.com), first seen 25 Sep 2026
- [Plexus Tech](https://jobspipe.dev/hiring/plexus.es), first seen 25 Sep 2026
- [Trusted Shops](https://jobspipe.dev/hiring/trustedshops.com), first seen 25 Sep 2026
- [Ivy Partners](https://jobspipe.dev/hiring/ivy.partners), first seen 25 Sep 2026
- [Ernesto Ventós](https://jobspipe.dev/hiring/ventos.com), first seen 25 Sep 2026
- [EQ Bank](https://jobspipe.dev/hiring/eqbank.ca), first seen 25 Sep 2026

## Roles that name it most

- Software Developers
- Information and Communications Technology Services Managers
- Mathematicians, Actuaries and Statisticians
- Systems Analysts
- Computer Network Professionals
- Industrial and Production Engineers
- Engineering Professionals Not Elsewhere Classified
- Software and Applications Developers and Analysts Not Elsewhere Classified

## By country

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

## FAQ

### How many companies use FastAPI?

5,283 companies have job postings that show they use FastAPI, as of 25 Sep 2026. 133 are confirmed and 5,150 are likely.

### Which companies use FastAPI?

The Flex, Jack & Jill, payabl., EXL, Klaviyo are among the confirmed FastAPI users with the most postings naming it. The full list on this page names 67 companies.

### Where are the companies that use FastAPI hiring?

Most postings that name FastAPI are in United States, India, United Kingdom. Country is where the job is, not where the company is headquartered.

### Which roles ask for FastAPI?

Software Developers, Information and Communications Technology Services Managers, Mathematicians, Actuaries and Statisticians are the occupations whose postings name FastAPI most often.

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

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 FastAPI 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 FastAPI, 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":["fastapi"],"tier_min":"confirmed","limit":25}'
```


---
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