ECM

ECM at early 70s gave us all the line of excellent avant-garde jazz albums, recorded with their precise and crystal clear sound mix. Unfortunately very soon (mid-late 70s) they switched to less experimental more simplified music, mixing soft fusion with lot of folklore,what very soon became their "classic 80s" sound - safe well polished chamber world fusion very often on the border with terrible new age sound. 

To be honest, they tried to return back to a bit more experimental (for its time) music, Molvaers some early albums were released on ECM, and some nowadays their releases are a bit more adventurous than all others, but historically looking they made the way (during few decades) from indie experimental label with very own face and sound to commercially successful conformist European chamber contemporary jazz /world fusion/new age label (still having their face and sound - and you don't expect no surprises from their well-crafted and super safe saloon music, still of highest standard though).

ECM by no way is the label associated with progressive (or just innovative) nu jazz nowadays as well. Their few nu jazz releases usually present mix of contemporary jazz (or new age) with some nu jazz elements - saloon conformist music for younger consumers. But - of high quality as well.