Mick Harris was of course drummer with Napalm Death and Extreme Noise Terror, among others, so the connection between a noise / grindcore is reasonably direct one. The two Macro Dub Infection compilations compiled by Kevin Martin before he became The Bug proper were pivotal in cataloguing a lot of the early crossover between experimental electronica and dub, and featured Scorn and many others.
Martin and Justin Broadrick from Godflesh (also fond of in dub albums…) produced some heavy techno / dub albums as Techno animal and later Zonal:
Third Eye Foundation were a link between the guitar noise scree of Flying Saucer Attack and drum and bass and other dub-adjacent areas - Semtex is a great place to start:
While Wake The Dead from a couple of years ago continues in ultra-dark form:
Digi-Dub (the label and overall identity for a myriad of artists, often the same people) put out some classics around the turn of the millennium, not least of which is the industrial klang of Scrap Bodies “composed entirely of sounds collected at the Skrotcentralen scrap yard, Uppsala, Sweden”:
https://www.discogs.com/digi-dub-Scrap-Bodies/release/1015097
Also of interest is the 16 Millionths Of An Inch album:
https://www.discogs.com/DigiDub-16-Millionths-Of-An-Inch/release/119252
Unfortunately none of the Digi-Dub seems to be on Bandcamp or similar that I’ve been able to find, though some has been uploaded to YouTube.
And to give your speakers a good rinsing under bass pressure, try the Answers Come In Dreams DVD and CD by Meat Beat Manifesto:
And the album In Dub, again available in a fantastic 5.1 surround mix on DVD:
https://www.discogs.com/Meat-Beat-Manifesto-In-Dub-51-Surround/release/3520123
And not forgetting the ever-weird slection on Jahtari, whose owner Disrupt tends towards chiptune Nintendo dub with some monster bass sounds, eg:
Everything on Jahtari is worth checking out, really, especially the spoken dub poetry LPs with Roger Robinson (of the very heavy King Midas Sound with one K Martin…) and his space station ambient releases: