All artists and labels should have an entry in Wikipedia. Over the coming months I will try to create entries where none exists! Here are the ones I have created so far:
https://en.wikipedia.org/wiki/Maciek_Pysz
http://en.wikipedia.org/wiki/Insight_(album)
http://en.wikipedia.org/wiki/Yuri_Goloubev
https://en.wikipedia.org/wiki/Edition_Records
Here are some labels I rate very highly for the quality of their jazz output:
only jazz 