A few personal favorites that I haven't seen mentioned here yet:
Maneesh De Moor - Sadhana. I don't understand why this album isn't talked about with the same reverence as Are You Shpongled? and Tales of the Inexpressible.
Amethystium - Apheleon. Probably my favorite of the Amethysium disks but they're pretty similar in vibe. A modern take on the Tangerine Dream/Vangelis/Brian Eno sound.
Abakus - This Much Closer to the Sun. Kuba, plus real melody. Really good, bouncy dub.
Bahramji & Maneesh De Moor - Call of the Mystic. Deep, chilled, and utterly tripped out dub.
Gas - Gas 0095. Woob's evil twin, this one. And better, IMO.
And even though it's not a primarily electronic album, Nicholas Gunn - Breathe really reminds me of Shpongle melodically at times. Acoustic Shpongle anyone?