| # | SP/EP Title | Release Date | Label | UK | USA |
| 1. | Out Of Phase | 17.03.1997 | Solid Grooves | | |
| 2. | Square One EP | 08.12.1997 | Solid Grooves | | |
| 3. | Synaptic Funk EP (Distant / Jaded / Meander / Spring) | 12.04.1999 | Soma | | |
| 4. | Out Of Phase EP (Ever (dub) / Gotta Live / Deimos) (repress) | 10.05.1999 | Solid Grooves | | |
| 5. | Distraught / Patient / Grounded | 07.06.1999 | Plastic City | | |
| 6. | Square Three EP (Reversion / Subducted / Twilight / Content) | 19.07.1999 | Solid Trax | | |
| 7. | Timeline EP (Clockwork Orange / Perpetual) & Christian Smith | 06.09.1999 | Yoshitoshi | | |
| 8. | The Incidental Tourist EP (Held Over (dub) / Going Home) | 22.11.1999 | Grayhound | | |
| 9. | Neural Response EP (Serenity / Sedated / Descent / Hubble) | 31.01.2000 | Soma | | |
| 10. | RetroActive Funk EP (Werkd / Intuit / Blissful) | 10.04.2000 | Jump | | |
| 11. | The Drifting EP (Yesterday / Leveled / Dewdropt / Drifting) | 25.09.2000 | Plastic City | | |
| 12. | Square Four | 13.11.2000 | Solid Groove | | |
| 13. | Circular Motion EP (Home Alone / Daydreaming / Roswell / Nightsight) & Arturo Garces | 05.03.2001 | Plush | | |
| 14. | The Consequential Theorist EP (En Route / In The Wake / Looking Ahead) | 17.02.2003 | Grayhound | | |
| 15. | Aural Allusions EP (Busted / Electric / Overboard) | 27.06.2005 | Grayhound | | |
| 16. | Tonal Centres: Vol 1 (On The Brink / Cosmos / Stratus) | 05.05.2009 | Manuscript | | |
| 17. | Billy | 2/2021 | Studio Recall | | |