Kraftwerk reminds me of HLTO-era Burzum (though historically, it should be the other way around), as do Klaus Schulze and Tangerine Dream at times.
The drill 'n' bass (sometimes described as IDM) of acts like Squarepusher, Venetian Snares and Aphex Twin are highly deconstructive, complex and disorienting, like grindcore and death metal. Apart from Kraftwerk, Suicide, and ambient and some industrial music, I couldn't listen to any electronic music until I heard Venetian Snares, purely because they were so "metal."