| 01 | Sharp / Cosmo / Van Overbeek | Extreme Speed Motorsports | Scott Sharp | Ferrari | 458 | Italia GT | Ferrari | GT | ALMS |
| 016 | Dyson / Smith / Kane | Dyson Racing (USA) | | Lola | B12/60 | | Mazda | LMP1 | ALMS |
| 02 | Brown / Segal / Lazzaro | Extreme Speed Motorsports | Scott Sharp | Ferrari | 458 | Italia GT | Ferrari | GT | ALMS |
| 022 | MacNeil / Keen / Dumoulin | Alex Job Racing (USA) | Alex Job | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 023 | Sweedler / Bell / von Moltke | Alex Job Racing (USA) | | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 024 | Faieta / Wagner / Avenatti | Competition Motorsports | Alex Job | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 025 | Richard / Cameron / Ende | Dempsey Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 03 | Magnussen / Garcia / Taylor | Corvette Racing (USA) | Gary Pratt | Chevrolet | Corvette C6 | .R ZR1 | Chevrolet | GT | ALMS |
| 031 | Benitez, Jr. / Thiim / Benitez | NGT Motorsport | | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 044 | Law / Neiman / Lally | Flying Lizard Motorsports (USA) | | Porsche | 997 GT3 RSR | | Porsche | GT | ALMS |
| 05 | Bennett / Braun / Lux | Core Autosport | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 055 | Tucker / Barbosa / Bouchut | Level 5 Motorsports (USA) | Scott Tucker | HPD | ARX-03 | b | Honda | LMP2 | ALMS |
| 06 | Popow / Viso / Frisselle | Core Autosport | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 1 | Lotterer / Fässler / Tréluyer | Audi Sport Team Joest (D) | | Audi | R18 | TDI | Audi | LMP1 | WEC |
| 2 | McNish / Kristensen / Capello | Audi Sport Team Joest (D) | | Audi | R18 | TDI | Audi | LMP1 | WEC |
| 3 | Duval / Bernhard / Dumas | Audi Sport Team Joest (D) | | Audi | R18 | TDI | Audi | LMP1 | WEC |
| 4 | Gavin / Milner / Westbrook | Corvette Racing (USA) | Gary Pratt | Chevrolet | Corvette C6 | .R ZR1 | Chevrolet | GT | ALMS |
| 5 | Guasch / Gidley / Wills | Muscle Milk Pickett Racing (USA) | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 6 | Graf / Luhr / Pagenaud | Muscle Milk Pickett Racing (USA) | | HPD | ARX-03 | a | HPD | LMP1 | ALMS |
| 7 | Ducote / Echeverria / Sanchez | Merchant Services Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 8 | Marcelli / Downs / Stirling | Merchant Services Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 9 | Drissi / Junqueira / Gonzalez | RSR Racing | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 11 | Cumming / Bullit / Estre | JDX Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 12 | Prost / Jani / Heidfeld | Rebellion Racing (CH) | Bart Hayden | Lola | B12/60 | -65 | Toyota | LMP1 | WEC |
| 13 | Belicchi / Primat / Bleekemolen | Rebellion Racing (CH) | Bart Hayden | Lola | B12/60 | -65 | Toyota | LMP1 | WEC |
| 15 | Moreau / Kraihamer / Baguette | OAK Racing (F) | | Pescarolo | 01 | OAK | Judd | LMP1 | WEC |
| 16 | Boullion / Collard / Jousse | Pescarolo Team (F) | | Pescarolo | 01 | Evo | Judd | LMP1 | WEC |
| 17 | Henzler / Sellers / Ragginger | Team Falken Tire | | Porsche | 997 GT3 RSR | | Porsche | GT | ALMS |
| 18 | Nicolosi / Vera / Matos | Performance Tech Motorsports | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 21 | Leventis / Watts / Kane | Strakka Racing (GB) | Nick Leventis | HPD | ARX-03 | a | Honda | LMP1 | WEC |
| 22 | Brabham / Chandhok / Dumbreck | JRM (GB) | James Rumsey | HPD | ARX-03 | a | Honda | LMP1 | WEC |
| 23 | Tresson / Mailleux / Lombard | Signatech Nissan (F) | Philippe Sinault | Oreca | 03 | | Nissan | LMP2 | WEC |
| 24 | Lahaye / Pla / Nicolet | OAK Racing (F) | Jacques Nicolet | Morgan | LM P2 | | Judd | LMP2 | WEC |
| 25 | Martin / Graves / Kerr | ADR-Delta (GB) | | Oreca | 03 | | Nissan | LMP2 | WEC |
| 28 | Jousse / Giroix / Charouz | Gulf Racing Middle East (UAE) | | Lola | B12/80 | | Nissan | LMP2 | WEC |
| 29 | Fatien / Ihara / Johansson | Gulf Racing Middle East (UAE) | | Lola | B12/80 | | Nissan | LMP2 | WEC |
| 30 | Cisneros / Edwards / Kauffmann | NGT Motorsport | | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 31 | Holzer / Schultis / Moro | Lotus (D) | | Lola | B12/80 | | Lotus | LMP2 | WEC |
| 32 | Sofronas / Welch / Villeneuve | GMG Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 34 | LeSaffre / Faulkner / Bleekemolen | Green Hornet Racing | | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 37 | Plowman / Heinemeier Hansson / Heylen / *Dracone | Conquest Endurance | | Morgan | LM P2 | | Judd | LMP2 | ALMS |
| 41 | Zugel / Gonzalez / Julian | Greaves Motorsport (GB) | Jacob Greaves | Zytek | Z11SN | | Nissan | LMP2 | WEC |
| 44 | Potolicchio / Sarrazin / Dalziel | Starworks Motorsport (USA) | | HPD | ARX-03 | b | Honda | LMP2 | WEC |
| 45 | Bergmeister / Holzer / Long | Flying Lizard Motorsports (USA) | | Porsche | 997 GT3 RSR | | Porsche | GT | ALMS |
| 48 | Miller / Bell / Maassen | Paul Miller Racing | Paul Miller | Porsche | 997 GT3 RSR | | Porsche | GT | ALMS |
| 49 | Kaffer / Pérez Companc / Ayari | Pecom Racing (RA) | | Oreca | 03 | | Nissan | LMP2 | WEC |
| 50 | Lamy / Bornhauser / Canal | Larbre Competition (F) | Jack Leconte | Chevrolet | Corvette C6 | .R ZR1 | Chevrolet | GTE Am | WEC |
| 51 | Fisichella / Bruni / Vilander | AF Corse (I) | Amato Ferrari | Ferrari | 458 | Italia GT | Ferrari | GTE Pro | WEC |
| 52 | Leitzinger / Dobson / Junco | PR1 Mathiasen motorsports | | Oreca | FLM 09 | | Chevrolet | LMPC | ALMS |
| 54 | Pappas / Fogarty / Curtis | Black Swan Racing | | Lola | B11/80 | -83 | Honda | LMP2 | ALMS |
| 55 | Camathias / Palttala / Binnie | JWA-Avila (GB) | | Porsche | 997 GT3 RSR | | Porsche | GTE Am | WEC |
| 56 | Hand / Summerton / Müller | BMW Team RLL (USA) | | BMW | M3 | E92 GT | BMW | GT | ALMS |
| 57 | Krohn / Jönsson / Rugolo | Krohn Racing (USA) | Tracy Krohn | Ferrari | 458 | Italia GT | Ferrari | GTE Am | WEC |
| 58 | Ehret / Farnbacher / Jakubowski | Luxury Racing (F) | | Ferrari | 458 | Italia GT | Ferrari | GTE Am | WEC |
| 59 | Melo / Makowiecki / Vernay | Luxury Racing (F) | | Ferrari | 458 | Italia GT | Ferrari | GTE Pro | WEC |
| 61 | Kauffman / Waltrip / Aguas | AF Corse-Waltrip (I) | Amato Ferrari | Ferrari | 458 | Italia GT | Ferrari | GTE Am | WEC |
| 66 | Pumpelly / Di Guida / Bunting | TRG (USA) | Kevin Buckler | Porsche | 997 GT3 Cup | | Porsche | GTC | ALMS |
| 70 | Bourret / Belloc / Gibon | Larbre Competition (F) | Jack Leconte | Chevrolet | Corvette C6 | .R ZR1 | Chevrolet | GTE Am | WEC |
| 71 | Bertolini / Beretta / Cioci | AF Corse (I) | Amato Ferrari | Ferrari | 458 | Italia GT | Ferrari | GTE Pro | WEC |
| 77 | Lietz / Lieb / Pilet | Team Felbermayr Proton (D) | | Porsche | 997 GT3 RSR | | Porsche | GTE Pro | WEC |
| 88 | Ried / Ruberti / Roda | Team Felbermayr Proton (D) | | Porsche | 997 GT3 RSR | | Porsche | GTE Am | WEC |
| 95 | Tucker / Diaz / Hunter-Reay | Level 5 Motorsports (USA) | Scott Tucker | HPD | ARX-03 | b | Honda | LMP2 | ALMS |
| 97 | Fernandez / Mücke / Turner | Aston Martin Racing (GB) | David Richards | Aston Martin | V8 Vantage | GTE | Aston Martin | GTE Pro | WEC |
| 155 | Auberlen / Alzen / Müller | BMW Team RLL (USA) | | BMW | M3 | E92 GT | BMW | GT | ALMS |