D-TRASH Records: http://dtrashrecords.com/
A much loved classic netlabel, they release heavy electronic music since 1998. Mostly digital hardcore similar to Atari Teenage Riot, sometimes more digital, sometimes more hardcore punk.
My recent favourites from them are DK-Dance:http://www.lunaticfringe.org/~schizoid/dtrashrecords/digitaldownloads/digitaldownload.php?ID=DTRASH202http://www.lunaticfringe.org/~schizoid/dtrashrecords/digitaldownloads/digitaldownload.php?ID=DTRASH152
A Japanese netlabel mainly releasing lolicore, which is basically a mix of breakcore, speedcore, other hardcore electronic music and anime samples.
Some releases I like:http://anyrec.webcrow.jp/2018/03/09/any-086-when-they-cry-ep/https://anythingrecords.bandcamp.com/album/any-055-hi-speed-otaku-core-vol-3
MO, who is running the netlabel, also released on other netlabels, my favourite is probably this, which appeared Dochakuso Records:http://dochakuso.web.fc2.com/release/dcks-0050.html
They release "microtonal music", which is apparently pretty exotic. I don't know much about music theory, but I really like their dub reggae:http://split-notes.com/tony-dubshot-omega-dub/http://split-notes.com/tony-dubshot-weird-science/
I wish they kept uploading their stuff to archive.org instead of being exclusively on bandcamp.