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I thought the link would be of companies that use Haskell as their primary language of development, but it is more of companies which use/had used Haskell in on

I thought the link would be of companies that use Haskell as their primary language of development, but it is more of companies which use/had used Haskell in one of their projects. The former would be interesting to know, if indeed such companies exist.

reinhardt 14y ago
That would probably limit a lot the number and diversity of the potential candidates. As a complete outsider I find more interesting that Haskell is used for even few projects inside, say, Credit Suisse than a one-man shop nobody has heard of that uses Haskell exclusively; YMMV.
sseveran 14y ago
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.
- raverbashing 14y ago
  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 14y ago
    Drivers to DBs I found this with OCaml too, so I decided to do something about it: http://gaiustech.github.com/ociml/ http://gaiustech.github.com/ociml/
  - sseveran 14y ago
    I can't reveal that, but major ones with an international presence. Most use it for modeling. They do lots of modeling.
- five18pm 14y ago
  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.
- anusinha 14y ago
  OCaml is also used extensively. I believe Jane Street Capital's entire codebase is in OCaml.
  - frou_dh 14y ago
    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.
- gaius 14y ago
  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 14y ago
    We manufacture alpha mining equipment for the financial markets.
    - gaius 14y ago
      Only way to get rich in a gold rush, selling shovels.
jurre 14y ago
Amsterdam based Silk is built in Haskell (http://www.silkapp.com/ http://www.silkapp.com/), it's one of the few companies I know of but I guess they do exist.
carterschonwald 14y ago
Depending on how some endeavors pan out, my wee company, WellPosed, is likely to be in that rarified category in the near future :-) (strictly speaking it may be 2-3 distinct enterprises under the same umbrella, but same thing). Also some interesting stuff on the algorithmic & open source pipeline that'll be made available as those services come out. (a vague summary of the pending products/services can be seen in this month's who's hiring thread.)
jamwt 14y ago
At bu.mp, for our main backend repository `sloccount` says: python: 22961 (67.22%) ansic: 6338 (18.55%) haskell: 4378 (12.82%) sh: 482 (1.41%) Edit: I should note, however, that the trend over the last year has been increasing that haskell share; you get just a lot done in not a lot of code... reuse is very good.
- enigmo 14y ago
  I didn't really believe Github's inflated line counts (125klocs) and was curious was sloccount would say... I'm a bit surprised with the results. The sheer quantity of C/C++, brainless coding over a few days, was impressive. Experience buys something I guess :-/ haskell: 65025 (88.22%) cpp: 6944 (9.42%) ansic: 1133 (1.54%) python: 391 (0.53%) java: 204 (0.28%) sh: 7 (0.01%)
meriksson 14y ago
There is at least one: Scrive. Their codebase is almost completely Haskell. I think the only other language they use is Javascript for web stuff (but their web apps are built with Happstack). https://scrive.com https://scrive.com

reinhardt 14y ago

That would probably limit a lot the number and diversity of the potential candidates. As a complete outsider I find more interesting that Haskell is used for even few projects inside, say, Credit Suisse than a one-man shop nobody has heard of that uses Haskell exclusively; YMMV.

sseveran 14y ago

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.

raverbashing 14y ago
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 14y ago
  Drivers to DBs I found this with OCaml too, so I decided to do something about it: http://gaiustech.github.com/ociml/ http://gaiustech.github.com/ociml/
- sseveran 14y ago
  I can't reveal that, but major ones with an international presence. Most use it for modeling. They do lots of modeling.
five18pm 14y ago
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.
anusinha 14y ago
OCaml is also used extensively. I believe Jane Street Capital's entire codebase is in OCaml.
- frou_dh 14y ago
  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.
gaius 14y ago
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 14y ago
  We manufacture alpha mining equipment for the financial markets.
  - gaius 14y ago
    Only way to get rich in a gold rush, selling shovels.

jurre 14y ago

Amsterdam based Silk is built in Haskell (http://www.silkapp.com/ http://www.silkapp.com/), it's one of the few companies I know of but I guess they do exist.

carterschonwald 14y ago

Depending on how some endeavors pan out, my wee company, WellPosed, is likely to be in that rarified category in the near future :-) (strictly speaking it may be 2-3 distinct enterprises under the same umbrella, but same thing). Also some interesting stuff on the algorithmic & open source pipeline that'll be made available as those services come out. (a vague summary of the pending products/services can be seen in this month's who's hiring thread.)

jamwt 14y ago

At bu.mp, for our main backend repository `sloccount` says: python: 22961 (67.22%) ansic: 6338 (18.55%) haskell: 4378 (12.82%) sh: 482 (1.41%) Edit: I should note, however, that the trend over the last year has been increasing that haskell share; you get just a lot done in not a lot of code... reuse is very good.

enigmo 14y ago
I didn't really believe Github's inflated line counts (125klocs) and was curious was sloccount would say... I'm a bit surprised with the results. The sheer quantity of C/C++, brainless coding over a few days, was impressive. Experience buys something I guess :-/ haskell: 65025 (88.22%) cpp: 6944 (9.42%) ansic: 1133 (1.54%) python: 391 (0.53%) java: 204 (0.28%) sh: 7 (0.01%)

meriksson 14y ago

There is at least one: Scrive. Their codebase is almost completely Haskell. I think the only other language they use is Javascript for web stuff (but their web apps are built with Happstack). https://scrive.com https://scrive.com