List of the companies who uses Haskell in production. Based on https://github.com/commercialhaskell/commercialhaskell#companies, with my own additions.
- Anchor
- Applikativ
- Capital Match
- Chordify
- CircuitHub
- Elsen
- Extensibl
- FP Complete
- FPInsight
- Front Row Education
- Helium Systems
- Infinipool
- IOHK
- Iris Connect
- Keera Studios
- Kite & Lightning
- Least Fixed
- LexisNexis Risk Solutions
- Lumi Guide
- Microsoft
- MyFansDemand
- Picus Security
- Prezi
- Rheo Systems
- Scoompa
- Serokell
- Silk
- Snowdrift.coop
- Soostone
- Stack Builders
- Standard Chartered
- Suite Solutions
- SumAll
- Swift Navigation
- Systor Vest
- thoughtbot
- Tsuru Capital
- Typeable
- VaryWell
- VFILES
- Virtual Forge
- Wagon
- Wellposed
- Well-Typed
- Tweag I/O