Psygnosis simply for Drakan. I recently replayed it and it holds up pretty well, even if the melee combat as Rynn is a little clunky.

Another one, who is still around and very successful in their niche, is Egosoft. X4 at release was a little so-so, but mostly due to performance issues and me being spoiled from years and years worth of mods for the previous games (but also, without any of the really good DLCs, only three of the six or so factions are in the game).