| 00 | Miller / Nunez / Vautier | Visit Florida Racing/Speedsource/Yellow Dragon M/S | Sylvain Tremblay | Mazda | 6 | GX | Mazda | GX |
| 01 | Pruett / Rojas / Montoya / Kimball | Chip Ganassi Racing with Felix Sabates (USA) | Mike Hull | Riley | Mk XXVI | | BMW | DP |
| 02 | Franchitti / McMurray / Hand / Dixon | Chip Ganassi Racing with Felix Sabates (USA) | Mike Hull | Riley | Mk XXVI | | BMW | DP |
| 03 | Sharp / Brown / van Overbeek / Hedlund | Extreme Speed Motorsports | Scott Sharp | Ferrari | 458 | Italia Grand-Am | Ferrari | GT |
| 2 | Dalziel / Popow / Bourdais / McNish | Starworks with Alex Popow | Peter Baron | Riley | Mk XXVI | | Ford | DP |
| 3 | Potolicchio / Lamy / Sarrazin / Davidson / Minassian | 8 Star Motorsports | Enzo Potolicchio | Chevrolet | Corvette DP | | Chevrolet | DP |
| 5 | Frisselle / Piquet, Jr. / Nasr / Fittipaldi | Action Express Racing | Robert Johnson | Chevrolet | Corvette DP | | Chevrolet | DP |
| 6 | Cumming / Valiante / Goncalvez / Yacaman | Michael Shank Racing | Michael Shank | Riley | Mk XXVI | | Ford | DP |
| 8 | Charouz / Bellarosa / Hartley / Ardagna / Mayer | Starworks Motorsport | Peter Baron | Riley | Mk XXVI | | Ford | DP |
| 9 | Rockenfeller / Barbosa / Frisselle | Action Express Racing | Robert Johnson | Chevrolet | Corvette DP | | Chevrolet | DP |
| 10 | Angelelli / Taylor / Hunter-Reay | Wayne Taylor Racing | Simon Hodgson | Chevrolet | Corvette DP | | Chevrolet | DP |
| 13 | Plumb / Biela / Haase / Winkelhock | Audi Sport Customer Racing/Rum Bum Racing | Matt Plumb | Audi | R8 LMS | Grand-Am | Audi | GT |
| 16 | Norman / Canache / Lewis / Donohue | Napleton Racing | Ron Barnaba | Porsche | Cayman | GX | Porsche | GX |
| 17 | Burtin / Ragginger / Baldwin / Farnbacher / Renauer | Burtin Racing with Goldcrest Motorsports | Claudio Burtin | Porsche | 997 GT3 Cup | | Porsche | GT |
| 18 | Thomas / Estre / Siedler | Muehlner Motorsports America | Bernard Muehlner | Porsche | 997 GT3 Cup | | Porsche | GT |
| 19 | Thomas / Salazar / Costabal / Hancock / Roush | Muehlner Motorsports America | Bernhard Muehlner | Porsche | 997 GT3 Cup | | Porsche | GT |
| 20 | Visconde / Júnior / Figueiredo / Maurício / *Lunardi | Dener Motorsport | Dener Pires | Porsche | 997 GT3 Cup | | Porsche | GT |
| 21 | Kanaan / Barrichello / Giaffone / Figueiredo / Maurício | Dener Motorsport | Dener Pires | Porsche | 997 GT3 Cup | | Porsche | GT |
| 22 | O'Young / Rogers / Clay / Thomas / Thomson | Bullet Racing | Steve Paquette | Porsche | Cayman | GX | Porsche | GX |
| 23 | MacNeil / Bleekemolen / Holzer / Faulkner | Alex Job Racing (USA) | Alex Job | Porsche | 997 GT3 Cup | | Porsche | GT |
| 24 | Albuquerque / Jarvis / Mortara / von Moltke | Audi Sport Customer Racing/AJR | Brad Kettler | Audi | R8 LMS | Grand-Am | Audi | GT |
| 25 | Whitis / Carbonell | Freedom Autosport/Speedsource | Sylvain Tremblay | Mazda | 6 | GX | Mazda | GX |
| 27 | Anassis / Massari / Kasemets | BTE Sport | Anthony Massari | Riley | Mk XI | | Ford | DP |
| 30 | Cisneros / Edwards / Giermaziak / Pilet | MOMO/NGT Motorsport | Ramez Wahab | Porsche | 997 GT3 Cup | | Porsche | GT |
| 31 | Curran / Davis / Aschenbach | Marsh Racing | Ted Marsh | Chevrolet | Corvette | | Chevrolet | GT |
| 32 | Tandy / Christensen / Engelhart | Konrad Motorsport/Orbit | Rodger Hawley | Porsche | 997 GT3 Cup | | Porsche | GT |
| 38 | Davis / Eversley / Mosing / Foss / Tecce | BGB Motorsports | John Tecce | Porsche | Cayman | GX | Porsche | GX |
| 42 | Pagenaud / Cameron / Nonnamaker | Team Sahlen | Jon Chapman | Riley | Mk XXVI | | BMW | DP |
| 43 | Sahlen / Drissi / Nonnamaker / Junqueira / Nonnamaker | Team Sahlen | Jon Chapman | Riley | Mk XXVI | | BMW | DP |
| 44 | Potter / Lally / Lietz / Armindo | Magnus Racing | John Potter | Porsche | 997 GT3 Cup | | Porsche | GT |
| 45 | Carter / Boden / Putman / Espenlaub / Plumb | Magnus Racing | John Potter | Porsche | 997 GT3 Cup | | Porsche | GT |
| 50 | de Quesada / Pace / Defoor / Beck / James | Highway to Help | Byron Defoor | Riley | Mk XXVI | | BMW | DP |
| 51 | Lacey / Figge / Bell / Farano / Empringham | APR Motorsport Ltd. UK | Jeff Mishtawy | Audi | R8 LMS | Grand-Am | Audi | GT |
| 52 | Stippler / Rast / Baas / Basseng | Audi Sport Customer Racing/APR Motorsport Ltd. UK | Jeff Mishtawy | Audi | R8 LMS | Grand-Am | Audi | GT |
| 56 | Kauffman / Aguas / Waltrip / Bowyer | AF - Waltrip (I) | Amato Ferrari | Ferrari | 458 | Italia Grand-Am | Ferrari | GT |
| 57 | Liddell / Edwards / Magnussen / Milner | Stevenson Motorsports | John Stevenson | Chevrolet | Camaro | GT.R | Chevrolet | GT |
| 59 | Keen / Davis / Lieb / Sellers | Brumos Racing | Donald Schinsing | Porsche | 997 GT3 Cup | | Porsche | GT |
| 60 | Pew / Negri / Allmendinger / Wilson / Ambrose | Michael Shank Racing | Michael Shank | Riley | Mk XXVI | | Ford | DP |
| 61 | Papis / Segal / Vilander / Fisichella | R. Ferri/AIM Motorsport Racing with Ferrari (CDN) | Remo Ferri | Ferrari | 458 | Italia Grand-Am | Ferrari | GT |
| 62 | Snow / Snow / Maassen / Seefried / Bachler | Snow Racing/Wright Motorsports | Robert Viglione | Porsche | 997 GT3 Cup | | Porsche | GT |
| 63 | Balzan / Pier Guidi / Frezza / Beretta | Scuderia Corsa (USA) | Giacomo Mattioli | Ferrari | 458 | Italia Grand-Am | Ferrari | GT |
| 64 | Longo / Negrão / Serra / Matos | Scuderia Corsa (USA) | Giacomo Mattioli | Ferrari | 458 | Italia Grand-Am | Ferrari | GT |
| 66 | Keating / Farnbacher / Wittmer / Bergmeister | TRG (USA) | Kevin Buckler | Porsche | 997 GT3 Cup | | Porsche | GT |
| 67 | Krohn / Jönsson / Collard / Dumas | TRG (USA) | Kevin Buckler | Porsche | 997 GT3 Cup | | Porsche | GT |
| 68 | Lewis / Michaelian / Van De Laar / Breukers / van de Laar | TRG (USA) | Kevin Buckler | Porsche | 997 GT3 Cup | | Porsche | GT |
| 69 | Assentato / Longhi / Lazzaro / Wilkins / *Cosmo | AIM Autosport Team FXDD with Ferrari | Andrew Bordin | Ferrari | 458 | Italia Grand-Am | Ferrari | GT |
| 70 | Tremblay / Long | Mazdaspeed/Speedsource | Sylvain Tremblay | Mazda | 6 | GX | Mazda | GX |
| 72 | Vess / Dumoulin / Phipps / Cole / Skeen | Park Place Motorsports | John Horton | Porsche | 997 GT3 Cup | | Porsche | GT |
| 73 | Pumpelly / Lindsey / Long / Hart / Graeff | Park Place Motorsports | John Horton | Porsche | 997 GT3 Cup | | Porsche | GT |
| 77 | Lowe / Bennett / Braun / Tracy | Doran Racing (USA) | Kevin Doran | Dallara | Riley Mk XXVI | | Ford | DP |
| 78 | Fuentes / Pérez de Lara / Camarillo / Peralta | Racers Edge Motorsports | | Mazda | RX-8 | | Mazda | GT |
| 80 | Haacker / Collins / Fogg / Walsh | TruSpeed Motorsports | Rob Morgan | Porsche | 997 GT3 Cup | | Porsche | GT |
| 87 | Heylen / Smith | Vehicle Technologies | John Shapiro | Dodge | Viper | | Dodge | GT |
| 90 | Garcia / Westbrook / Taylor / Gavin | Spirit of Daytona Racing | Troy Flis | Chevrolet | Corvette DP | | Chevrolet | DP |
| 93 | Auberlen / Marsal / Martin / Priaulx / Schaldach | Turner Motorsport | Will Turner | BMW | M3 | | BMW | GT |
| 94 | Auberlen / Johnson / Dalla Lana / Said / Martin | Turner Motorsport | Will Turner | BMW | M3 | | BMW | GT |
| 99 | Gurney / Fogarty / Gidley / Law | GAINSCO/Bob Stallings Racing | Bob Stallings | Chevrolet | Corvette DP | | Chevrolet | DP |