| 01 | Sharp / Farnbacher / Van Overbeek | Extreme Speed Motorsports | Scott Sharp | Ferrari | F430 | GTC | Ferrari | GT2 | |
| 02 | Brown / Barbosa / Cosmo | Extreme Speed Motorsports | Scott Sharp | Ferrari | F430 | GTC | Ferrari | GT2 | |
| 04 | Murry / Bell / Lazzaro | Robertson Racing (USA) | | Ford | GT | -R Mk.7 | Ford | GT2 | |
| 07 | Wurz / Davidson / Gené | Team Peugeot Total (F) | | Peugeot | 908 | HDi FAP | Peugeot | LMP1 | ILMC |
| 08 | Lamy / Montagny / Sarrazin | Team Peugeot Total (F) | | Peugeot | 908 | HDi FAP | Peugeot | LMP1 | ILMC |
| 1 | Pagenaud / Brabham / Franchitti | Patrón Highcroft Racing (USA) | | HPD | ARX-01 | c | HPD | LMP2 | |
| 3 | Beretta / O'Connell / Garcia | Corvette Racing (USA) | | Chevrolet | Corvette C6 | .R ZR1 | Chevrolet | GT2 | |
| 4 | Magnussen / Collard / Gavin | Corvette Racing (USA) | | Chevrolet | Corvette C6 | .R ZR1 | Chevrolet | GT2 | |
| 5 | Prendeville / Dempsey / *Toivonen | Libra Racing | | Radical | SR9 | | IES | LMP2 | |
| 6 | Graf / Maassen / Luhr | Muscle Milk Team CytoSport (USA) | | Porsche | RS Spyder | Evo | Porsche | LMP2 | |
| 7 | McNish / Kristensen / Capello | Audi Sport Team Joest (D) | | Audi | R15 TDI | | Audi | LMP1 | ILMC |
| 7T | McNish / Kristensen / Capello | Audi Sport Team Joest (D) | | Audi | R15 TDI | | Audi | LMP1 | ILMC |
| 7A | McNish / Kristensen / Capello | Audi Sport Team Joest (D) | | Audi | R15 TDI | | Audi | LMP1 | ILMC |
| 8 | Cocker / Drayson / *Pirro | Drayson Racing (GB) | | Lola | B09/60 | | Judd | LMP1 | ILMC |
| 9 | Lotterer / Fässler / Tréluyer | Audi Sport Team Joest (D) | | Audi | R15 TDI | | Audi | LMP1 | ILMC |
| 10 | Davis / Said / Bell | ACS Express Racing | | Ford | GT | -R Mk.7 | Ford | GT2 | |
| 12 | McMurry / Willman / Burgess | Autocon Motorsports (USA) | | Lola | B06/10 | -14 | AER | LMP1 | |
| 16 | Meyrick / Dyson / Smith | Dyson Racing Team (USA) | | Lola | B09/80 | -86 | Mazda | LMP2 | |
| 17 | Sellers / Ragginger | Team Falken Tire | | Porsche | 997 GT3 RSR | | Porsche | GT2 | |
| 23 | Sweedler / Kapudija / Lueders | Alex Job Racing | Alex Job | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 28 | Baron / Villeneuve / Beggs | 911 Design | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 33 | Leitzinger / *Drissi / *Wallace | JaguarRSR (USA) | | Jaguar | XKR | -S | Jaguar | GT2 | ILMC |
| 35 | da Rocha / Lafargue / Nicolet | OAK Racing (F) | | Pescarolo | 01 | Evo | Judd | LMP2 | ILMC |
| 36 | Montecalvo / Figge / Lux | Genoa Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 37 | Field / Field / Devlin | Intersport Racing (USA) | | Lola | B06/10 | -14 | AER | LMP1 | |
| 40 | Stanton / Robertson / Robertson | Robertson Racing (USA) | | Ford | GT | -R Mk.7 | Ford | GT2 | |
| 44 | Law / Holzer / Neiman | Flying Lizard Motorsports (USA) | | Porsche | 997 GT3 RSR | | Porsche | GT2 | ILMC |
| 45 | Bergmeister / Long / Lieb | Flying Lizard Motorsports (USA) | | Porsche | 997 GT3 RSR | | Porsche | GT2 | ILMC |
| 48 | Miller / Hines / Ehret | Paul Miller Racing | Ali Dunn | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 50 | James / Leuenberger | Panoz Team (USA) | | Panoz | Abruzzi | | Abruzzi | GT2 | |
| 52 | Gonzalez / Diaz / Lewis | PR1/Mathiasen Motorsports | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 54 | Bleekemolen / Bleekemolen / Pappas | Black Swan Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 55 | Tucker / Bouchut / Wilkins | Level 5 Motorsports | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 61 | Melo / Fisichella / Salo | Risi Competizione (USA) | | Ferrari | F430 | GTC | Ferrari | GT2 | ILMC |
| 62 | Vilander / Bruni | Risi Competizione | | Ferrari | F430 | GTC | Ferrari | GT2 | ILMC |
| 63 | Ende / Lally / Richard | TRG (USA) | Kevin Buckler | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 69 | Rodriguez / Bieker / Wilson | Werks II Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 73 | Downs / Downs / Downs | Intersport Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 75 | Goossens / Dalziel / *Gentilozzi | JaguarRSR (USA) | | Jaguar | XKR | -S | Jaguar | GT2 | ILMC |
| 77 | Davis / Potter / Eversley | Magnus Racing | John Potter | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 88 | Lewis / Aschenbach / Vento | Velox Motorsports | | Porsche | 997 GT3 Cup | | Porsche | GTC | |
| 89 | Marcelli / Ducote / Ducote | Intersport Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 90 | Hand / Müller / Priaulx | BMW Rahal Letterman Racing Team (USA) | | BMW | M3 | E92 GT | BMW | GT2 | ILMC |
| 92 | Auberlen / Milner / Werner | BMW Rahal Letterman Racing Team (USA) | | BMW | M3 | E92 GT | BMW | GT2 | ILMC |
| 95 | Werner / Tucker / Frisselle | Level 5 Motorsports | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 99 | Jeannette / Julian / Zugel | Green Earth Team Gunnar | | Oreca | FLM 09 | | Chevrolet | LMPC | |
| 911 | Dumas / Bernhard / Rockenfeller | Porsche Motorsports North America (D) | | Porsche | 997 GT3 R | Hybrid | Porsche | GTH | |