- 35007 - Space Rock
- The 3rd and the Mortal - Progressive Metal
- 4/3 De Trio - Art Rock
- The 5UU's - RIO/Avant-Prog
- 65daysofstatic - Experimental/Post-Rock
- 90 Day Men - Art Rock

- A Silver Mt. Zion - Experimental/Post-Rock
- A.C.T. - Art Rock
- Abercrombie, John - Jazz Rock/Fusion
- Absolute Zero - RIO/Avant-Prog
- After Crying - Symphonic Prog
- Age of Nemesis - Progressive Metal
- Jan Akkerman - Art Rock
- Amon Düül - Krautrock
- Amon Düül II - Krautrock
- Amplifier - Psychedelic/Space Rock
- Anathema - Progressive Metal
- Anderson, Ian - Prog Folk
- Anderson, Jon - Prog Related
- Anekdoten - Art Rock
- Ange - Symphonic Prog
- Änglagård - Symphonic Prog
- Aphrodite's Child - Symphonic Prog
- Arcturus - Progressive Metal
- Area - Jazz Rock/Fusion
- Arena - Neo Progressive
- Argent - Art Rock
- Asia - Prog Related
- Atomic Rooster - Art Rock
- Ayreon - Progressive Metal

- Banco del Mutuo Soccorso - Italian Symphonic Prog
- Barclay James Harvest - Art Rock
- Barrett, Syd - Prog Related
- Beck, Jeff - Prog Related
- Belew, Adrian - Art Rock
- Big Big Train - Art Rock
- Birdsongs of the Mesozoic - RIO/Avant-Prog
- Black Bonzo - Art Rock
- Blackfield - Prog Related
- Blackmore's Night - Prog Folk
- Bodin, Tomas - Symphonic Prog
- Boud Deun - Jazz Rock/Fusion
- Brand X - Jazz Rock/Fusion
- Bruford, Bill - Jazz Rock/Fusion
- Bush, Kate - Prog Related

- California Guitar Trio (CGT) - Art Rock
- Camel - Symphonic Prog
- Can - Krautrock
- Captain Beefheart - RIO/Avant-Prog
- Captain Beyond - Art Rock
- Caravan - Canterbury Scene
- Carptree - Neo Progressive
- Chroma Key - Psychedelic/Space Rock
- Clearlight - Symphonic Prog
- Cobham, Billy - Jazz Rock/Fusion
- Coheed and Cambria - Prog Related
- Colosseum - Jazz Rock/Fusion
- Colosseum II - Jazz Rock/Fusion
- Cressida - Symphonic Prog
- Crimson Jazz Trio - Prog Related
- Cross, David - Jazz Rock/Fusion
- Cryptic Vision - Crossover Prog
- Curved Air - Crossover Prog

- Deep Purple - Proto-Prog
- Deus Ex Machina - Jazz Rock/Fusion
- Deuter - Krautrock
- Di Meola, Al - Jazz Rock/Fusion
- The Dixie Dregs - Jazz Rock/Fusion
- Djam Karet - Crossover Prog
- Doors, The - Proto-Prog
- Dream Theater - Progressive Metal
- dredg - Crossover Prog
- Dungen - Psychedelic/Space Rock

- East of Eden - Eclectic Prog
- Egg - Canterbury Scene
- Electric Light Orchestra (ELO) - Prog Related
- Eloy - Psychedelic/Space Rock
- Emerson, Lake and Palmer (ELP) - Symphonic Prog
- Emerson, Keith - Crossover Prog
- Enchant - Heavy Prog
- Eno, Brian - Progressive Electronic
- Estradasphere - RIO/Avant-Prog
- Explosions in the Sky - Experimental/Post-Rock

- Family - Eclectic Prog
- Fates Warning - Progressive Metal