Here is a list of all cues used in both Spore & its expansion pack Galactic Adventures. Please let me know if I missed anything.
KPM
Robin Jeffrey - Freylekhs (KPM342)
Robert Foster - Courtly Musicke (b) (KPM487)
Barrie Hingley - Glorious Victory (KPM651)
Richard Myhill - A Fair Maiden (KPM155)
Raul Constantine - Final Hour (KPM603)
Dick Walter - Picasso's Women (a) (KPM660)
Hugh Burns - Alabama Hayride (a) (KPM674)
Richard Myhill - A Bollywood Fantasy (KPM0683)
Kosinus
Christian Seguret, Olivier Andres & Olivier Delevingne - Music from Nowhere (KAR1020)
Laurent Lombard - Electronik (KOS194)
Yoofu - Seko (KOL014)
Sonoton
Udi Harpaz - Evil Times (STT014)
Quango & Sparky - Do the Boogaloo (SCD128)
Paul Lenart - Maggie's Nights A (SCD670)
Clemens Neufeld - Android (SCDV025)
Phred Mosbey - California Way (SCD271)
Gregor Narholz - Strength & Honor (SCD164)
Jens Ewald - Joyful Evening A (SDCV052)
Gregor Narholz - Ambush (SCD437)
John Fox - Sea Battle (SCD203)
Gregor Narholz - Tough Secrets (STT14)
Gregor Narholz - The Land is Ours (SCD221)
Yesman MF Bui - Shuu Shity (SAS063)
Gregor Narholz - Ready for Combat (SCD164)
John Fox - The Jovial Buccaneers (SCD203)
Selected Sound
Cornelus Bolten - The Old Sword (SEL6039)
Ravi Shani - Veena (SEL5133)
Bruton
Steve Byrd - Golden Country (BR407)
Tony Kinsey - Evil Intent (BR471)
Laurence Cottle - Jungle Jump (BR468)
West One Music
Frank Chacksfield - Apres Ski (WOM034)
Ray Denny & Sam Sklair - 5th Avenue (WOM034)
Paul Reeves - Strictly Cha-Cha (d) (WOM140)
Michael Rheault & Miles Foxx Hill - Teddy Boy Twist (b)
Roy Marsh - The Lovers (WOM034)
Keith Andrew Roberts - Slow Muzak (WOM034)
Peter Sander - Hoola Hoola (WOM034)
Richard Harvey - Heaven's Warriors (WOMG008)
Carlin
Larry Hochman - Wagon Train (CAR366)
Harry Bluestone & Emil Cadkin - Vaudeville Act (CAS021)
Harry Bluestone & Emil Cadkin - Victory Roll (CAS011)
Other
Ray Russell - Old Kingdoms (Strip Sounds)
Alec Williams & Chieli Minucci - Creating Ideas (FirstCom)
Darrell Raby - Raising the Dead (LQC004)
Darrell Raby - The Hordes (LQC002)