[sseveran]

Haskell has much more of a group inside of a company will use it as their primary environment then adopting it wholesale. Haskell is used extensively in trading with almost every major bank and hedge fund using it, although no one talks about it. It is also extensively used in energy companies.

There are a few companies out there that use it as their primary language such as Tsuru Capital and my company, Alpha Heavy Industries. By definition companies using it as their primary language will be smaller companies. Standard Chartered has a very large Haskell group.

[anusinha]

OCaml is also used extensively. I believe Jane Street Capital's entire codebase is in OCaml.

[frou_dh]

Jane Street or pointers to them seem to be the primary driver of OCaml on the internet. That's cool, but worrying in lack of diversity.

[five18pm]

That Haskell is used extensively in trading is quite interesting to know. This distinction did not come out that well on the wiki link. This is probably the reorganization that the page needs. Split in to sections highlighting companies which use Haskell as primary language, then split along industry lines.

Highlighting companies which use Haskell as primary language will be beneficial to both the language and the companies. Brings along a trust factor that real money can be made while using on Haskell.

[raverbashing]

Which energy companies and for what?

The major problem with the 'smaller languages' is that sometimes, even if you want to, and can use it effectively, it's difficult to interface with other systems.

For example, services using SOAP. Drivers to DBs and other systems.

Sometimes it's easier to have your core login in Haskell for example, then make it interface with something else in Java/C#/etc which will have plugins for everything.

[gaius]

Drivers to DBs

I found this with OCaml too, so I decided to do something about it: http://gaiustech.github.com/ociml/

[sseveran]

I can't reveal that, but major ones with an international presence. Most use it for modeling. They do lots of modeling.

[gaius]

Are you heavy industrial? Or did you just like the name? I was so disappointed when I discovered Urban Airship didn't actually operate airships...

[enigmo]

We manufacture alpha mining equipment for the financial markets.

[gaius]

Only way to get rich in a gold rush, selling shovels.