Aside from Mojang..

[Brettaka]

Riot, DICE, Valve, Re-Logic (sort of dead :C), Firaxis, Maxis (sort of dead also :C). Hi-Rez is pretty cool too, although they haven't done a whole lot.

 

[Nosjock]

Bungie
Frictional games
Valve

 

[ShaunDepro]

For le two top shooter games.

Dice (but not EA)
Treyarch (but not Activision, most awful support ever)

 

[zukodark]

Signature /\ Then you only have killed me 1,503333333333333% of everytime I have died IRL.
Edit: Topic: ZD company have made the amazing "CreativeBrain" a amazing game where you can make EVERYTHING! With a few clicks you can make a new animal! Make adventure maps exactly how you want them! It is amazing!
Edit: Oh sorry, that was later in time.

 

[Sneeze7]

Am I allowed to do iOS games? xD

If so, kiloo, a company that makes iOS games.

But video game companies, I'd go with Ubisoft, I lerve Assassins Creed.

 

[Le0]

Bethesda and EA
and Blue Fang.... zoo tycoon, anyone?

 

[Brettaka]

Also CyberConnect2 for Asura's Wrath. Fantastic game, everyone play it. C:

 

[OlsenInc]

Valve: counter-strike 1.5/1.6
Ubisoft: AC 1/2/3 (Don't like revelation / brotherhood)
Nitendo: Pokemon, mario, sonic and zelda
Bungie: Halo

 

[Neodude]

I would have to say Nintendo for sure
Almighty Valve
Sega along with Creative Assembly(Total War Game series)
Bethesda-for both fallout and ES alike
And then Both gearbox and 2KGames....berderlands of course

 

[schnikes]

Firaxis and 2K games = Civilization <33333

 

[Chezerony]

I liek Gamefreak. :3

 

[VebbiHD]

<- Doesn't like Valve

Btw, anyone heard about EA saying that YouTubers should stop monetizing off videos on their games.

Wasn't this mentioned in one of BebobVox's videos?