> I'm not sure if you're being facetious or asking a genuine question.

A genuine one. I remember a presentation by a bank about their use of Haskell, and wasn't sure if it was Standard Chartered. I remember they had the subset, and mentioned they basically had to a lot from scratch to interface with various systems.

And now that I have the name, I found a link to someone's copy: https://dshevchenko.biz/hs-research/Haskell-in-the-Large.pdf (used to be available at code.haskell.org). My recollection of the paper isn't perfect :)

> My understanding is that they are progressively moving more and more to GHC, although my knowledge is five years out of date.

Ah, thank you!