| 001 | Sharp / Van Overbeek / *Farnbacher | Extreme Speed Motorsports | Scott Sharp | Ferrari | 458 Italia | GTC | Ferrari | GT | |
| 002 | Cosmo / Bell / Brown | Extreme Speed Motorsports | Scott Sharp | Ferrari | 458 Italia | GTC | Ferrari | GT | |
| 004 | Lazzaro / Murry / Braun | Robertson Racing | | Ford | GT | | Elan | GT | |
| 005 | Dalziel / Bennett / Montecalvo | Core Autosport | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 006 | Jeannette / Gonzalez / Junco | Core Autosport | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 008 | Pastorelli / *Schwager / *Sandberg | West Yokohama Racing | | Lamborghini | Gallardo | LP560 | Lamborghini | GT | |
| 01 | Pagenaud / Brabham / Franchitti | Highcroft Racing (USA) | | HPD | ARX-01 | e | HPD | LMP1 | |
| 011 | Ham / Blackett / Cumming | JDX Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 016 | Dyson / Cochran / Smith | Dyson Racing Team Inc. (USA) | | Lola | B09/80 | -86 | Mazda | LMP1 | |
| 017 | Sellers / Ragginger / Henzler | Team Falken Tire | | Porsche | 997 GT3 RSR | | Porsche | GT | |
| 018 | Lueders / Nicolosi / Boon | Performance Tech Motorsports | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 023 | Keen / Sweedler / Wong | Alex Job Racing (USA) | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 023T | Keen / Sweedler / Wong | Alex Job Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 03 | Beretta / Milner / Garcia | Corvette Racing (USA) | | Chevrolet | Corvette C6.R | ZR1 | Chevrolet | GT | |
| 030 | Edwards / Cisneros / Kauffmann | NGT Motorsports | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 032 | Sofronas / Seyffarth / *Curtis | Spectra Resources, GMG Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 034 | LeSaffre / Faieta / Davis | Kelly Moss Motorsports | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 036 | Petersen / Guasch / Cameron | Genoa Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 038 | Mowlem / Moro / Lombard | Iconik Energy Drinks - WRO | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 04 | Gavin / Magnussen / Westbrook | Corvette Racing (USA) | | Chevrolet | Corvette C6.R | ZR1 | Chevrolet | GT | |
| 040 | Said / Robertson / Robertson | Robertson Racing | | Ford | GT | | Elan | GT | |
| 044 | Law / Holzer / Neiman | Flying Lizard Motorsports (USA) | | Porsche | 997 GT3 RSR | | Porsche | GT | |
| 045 | Bergmeister / Lieb / Long | Flying Lizard Motorsports (USA) | | Porsche | 997 GT3 RSR | | Porsche | GT | |
| 048 | Miller / Rast / Maassen | Paul Miller Racing | | Porsche | 997 GT3 RSR | | Porsche | GT | |
| 050 | James / *Leuenberger | Panoz Racing (USA) | | Panoz | Abruzzi | | Abruzzi | GT | |
| 052 | Lewis / Dobson / Richard | PR1 Mathiasen Motorsports | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 054 | Faulkner / Pappas / Bleekemolen | Black Swan Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 055 | Hunter-Reay / Diaz / *Tucker | Level 5 Motorsports (USA) | Scott Tucker | Lola | B11/40 | -43 | Honda | LMP2 | |
| 06 | Pickett / Graf / Luhr | Muscle Milk Aston Martin Racing (USA) | | Lola | Aston Martin DBR1-2 | | Aston Martin | LMP1 | |
| 062 | Melo / Vilander / *Salo | Risi Competizione (USA) | | Ferrari | 458 Italia | GTC | Ferrari | GT | |
| 063 | Zugel / Julian / Lux | Genoa Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 066 | Pumpelly / Ende / Li | TRG (USA) | Kevin Buckler | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 068 | von Moltke / Norman / Ludwig | TRG (USA) | Kevin Buckler | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 077 | Stanton / Potter / Marsh | Magnus Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 089 | Marcelli / Mitchell / Drissi | Intersport Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 098 | Jones / Wilden / Moran, Jr. | Jaguar RSR (USA) | | Jaguar | XKR | | Jaguar | GT | |
| 099 | da Matta / Junqueira / Servia | Jaguar RSR (USA) | | Jaguar | XKR | | Jaguar | GT | |
| 1 | Rockenfeller / Bernhard / Dumas | Audi Sport Team Joest (D) | | Audi | R15 | TDI | Audi | LMP1 | ILMC |
| 2 | McNish / Kristensen / Capello | Audi Sport Team Joest (D) | | Audi | R15 | TDI | Audi | LMP1 | ILMC |
| 7 | Wurz / Davidson / Gené | Peugeot Sport Total (F) | | Peugeot | 908 | | Peugeot | LMP1 | ILMC |
| 8 | Lamy / Montagny / Sarrazin | Peugeot Sport Total (F) | | Peugeot | 908 | | Peugeot | LMP1 | ILMC |
| 10 | Duval / Lapierre / Panis | Team Oreca Matmut (F) | | Peugeot | 908 | HDi FAP | Peugeot | LMP1 | ILMC |
| 12 | Jani / Bleekemolen / Prost | Rebellion Racing (CH) | Bart Hayden | Lola | B10/60 | -65 | Toyota | LMP1 | ILMC |
| 15 | Lahaye / Ragues / Moreau | OAK Racing (F) | | Pescarolo | 01 | OAK | Judd | LMP1 | ILMC |
| 24 | Hein / Yvon / Nicolet | OAK Racing (F) | | Pescarolo | 01 | OAK | Judd | LMP1 | ILMC |
| 26 | Mailleux / Ordoñez / Ayari | Signatech Nissan (F) | | Oreca | 03 | | Nissan | LMP2 | ILMC |
| 33 | Bouchut / Barbosa / Tucker | Level 5 Motorsports (USA) | Scott Tucker | Lola | B11/80 | -83 | Honda | LMP2 | ILMC |
| 35 | da Rocha / Lafargue / Barlesi | OAK Racing (F) | | Pescarolo | 01 | OAK | Judd | LMP2 | ILMC |
| 50 | Gardel / *Bornhauser / *Canal | Larbre Competition (F) | Jack Leconte | Chevrolet | Corvette C6.R | ZR1 | Chevrolet | GTE Am | ILMC |
| 51 | Kaffer / Fisichella / Bruni | AF Corse (I) | | Ferrari | F430 | GTC | Ferrari | GT | ILMC |
| 55 | Werner / Auberlen / Farfus | BMW Motorsport | | BMW | M3 E92 | GT | BMW | GT | ILMC |
| 56 | Müller / Hand / Priaulx | BMW Motorsport | | BMW | M3 E92 | GT | BMW | GT | ILMC |
| 57 | Krohn / Jönsson / Rugolo | Krohn Racing (USA) | | Ferrari | F430 | GTC | Ferrari | GTE Am | ILMC |
| 59 | Delétraz / Makowiecki / Ortelli | Luxury Racing (F) | | Ferrari | 458 Italia | GTC | Ferrari | GT | ILMC |
| 60 | Giroix / *Wainwright / *Goethe | Gulf AMR Middle East (UAE) | | Aston Martin | V8 Vantage | GT2 | Aston Martin | GTE Am | ILMC |
| 62 | Ehret / Willis / Lynn | CRS Racing (GB) | | Ferrari | F430 | GTC | Ferrari | GTE Am | ILMC |
| 63 | Lietz / Ried / Roda | Proton Competition | | Porsche | 997 GT3 RSR | | Porsche | GTE Am | ILMC |