| 0 | Meyrick / Legge / Rossi / Chaves | DeltaWing Racing Cars (USA) | | DeltaWing | DWC13 | | Elan | P |
| 007 | Block / Carter / Davison / Davis / Adam | TRG-AMR (USA) | Kevin Buckler | Aston Martin | V12 Vantage | GT3 | Aston Martin | GTD |
| 009 | Carter / Block / Davison / Adam / Davis | TRG-AMR (USA) | Kevin Buckler | Aston Martin | V12 Vantage | | Aston Martin | GTD |
| 01 | Pruett / Rojas / McMurray / Karam / Dixon | Chip Ganassi Racing | | Riley | Mk XXVI | | Ford | P |
| 02 | Dixon / Kanaan / Franchitti / Larson / Pruett | Chip Ganassi Racing | | Riley | Mk XXVI | | Ford | P |
| 07 | Long / Miller / Hinchcliffe / Vautier / Carbonell | SpeedSource (USA) | Sylvain Tremblay | Mazda | Prototype | | Mazda | P |
| 1 | Sharp / Dalziel / Brabham | Extreme Speed Motorsports (USA) | Scott Sharp | HPD | ARX-03 | b | Honda | P |
| 2 | Brown / Pagenaud / Van Overbeek / Lazzaro | Extreme Speed Motorsports (USA) | Scott Sharp | HPD | ARX-03 | b | Honda | P |
| 3 | Magnussen / Garcia / Briscoe | Corvette Racing (USA) | | Chevrolet | Corvette C7 | .R | Chevrolet | GTLM |
| 4 | Gavin / Milner / Liddell | Corvette Racing (USA) | | Chevrolet | Corvette C7 | .R | Chevrolet | GTLM |
| 5 | Barbosa / Fittipaldi / Bourdais | Action Express Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 6 | Graf / Luhr / Brundle / Dyer | Pickett Racing (USA) | | Oreca | 03 | | Nissan | P |
| 7 | Popow / Tutumlu / Fuentes / Huff | Starworks Motorsport | | Oreca | FLM 09 | | Chevrolet | PC |
| 8 | van der Zande / Schultis / Lux / Bird | Starworks Motorsport | | Oreca | FLM 09 | | Chevrolet | PC |
| 9 | Frisselle / Giroix / Frisselle / Johansson / Martin | Action Express Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 10 | Taylor / Angelelli / Taylor / Taylor | Wayne Taylor Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 18 | Bamber / Pobst / Blum / Zitza / Imporatori | Mühlner Motorsports America | | Porsche | 991 GT America | | Porsche | GTD |
| 19 | Pobst / Bamber / Kvamme / Gewirtz / Imporatori | Mühlner Motorsports America | | Porsche | 991 GT America | | Porsche | GTD |
| 22 | MacNeil / Keen / Dumoulin / Van Gisbergen | Alex Job Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 23 | James / Riberas / Farnbacher / Holzer | Team Seattle/Alex Job Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 25 | Potolicchio / Kimber-Smith | 8Star Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 27 | Dempsey / Davis / Foster | Dempsey Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 28 | Engelhart / Ineichen / Bachler / Konrad / Willsey | Dempsey Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 30 | Cisneros / Nielsen / Giermaziak / Makowiecki | NGT Motorsport | | Porsche | 991 GT America | | Porsche | GTD |
| 31 | Curran / Said / Smith / Papis | Marsh Racing | Ted Marsh | Chevrolet | Corvette DP | | Chevrolet | P |
| 32 | Stippler / Welch / Sofronas / Basseng | GMG Racing | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 33 | Keating / Bleekemolen / Bleekemolen / Collard | Riley Motorsports (USA) | Bill Riley | SRT | Viper | GT3-R | Viper | GTD |
| 35 | Neiman / von Moltke / Latif / Albuquerque | Flying Lizard Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 38 | Shears / Brownson / Matos / Booth | Performance Tech Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 42 | Pla / Rusinov / Yacaman / Plowman | OAK Racing (F) | Jacques Nicolet | Morgan | LM P2 | | Nissan | P |
| 44 | Potter / Lally / Wong / Eversley | Magnus Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 45 | Canache / Pumpelly / Pappas / Winkelhock | Flying Lizard Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 46 | Putman / Jarvis / Espenlaub / Walker | Fall-Line Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 48 | Miller / Rast / Haase / Bell | Paul Miller Racing | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 49 | Perazzini / Ruberti / Roda | Spirit of Race | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 50 | De Foor / Pace / Hinton / Beck | Highway To Help | Byron Defoor | Riley | Mk XXVI | | Dinan | P |
| 51 | Griffin / Rugolo / Cioci | Spirit of Race | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 52 | Guasch / Diaz / Cheng / Drissi / Kovacic | PR1/Mathiasen Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 54 | Bennett / Braun / Wilkins / Gue | Core Autosport | | Oreca | FLM 09 | | Chevrolet | PC |
| 55 | Auberlen / Priaulx / Hand / Martin | BMW Team RLL (USA) | | BMW | Z4 | GTE | BMW | GTLM |
| 56 | Edwards / Müller / Rahal / Werner | BMW Team RLL (USA) | | BMW | Z4 | GTE | BMW | GTLM |
| 57 | Krohn / Jönsson | Krohn Racing (USA) | Tracy Krohn | Ferrari | 458 | Italia GT | Ferrari | GTLM |
| 58 | Snow / Heylen / Seefried | Snow Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 60 | Pew / Negri / Allmendinger / Wilson | Michael Shank Racing | Michael Shank | Riley | Mk XXVI | | Ford | P |
| 63 | Balzan / Westphal / Vilander / Casè | Scuderia Corsa (USA) | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 64 | Randall / Farano / Wilden / Empringham | Scuderia Corsa (USA) | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 70 | Tremblay / Long / Vautier | SpeedSource (USA) | Sylvain Tremblay | Mazda | Prototype | | Mazda | P |
| 71 | Norman / Stanton / Siedler | Park Place Motorsports | | Porsche | 991 GT America | | Porsche | GTD |
| 72 | Zlobin / Salo / Rotenberg | SMP/ESM Racing | Scott Sharp | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 73 | Lindsey / Estre / De Phillippi / Hart / Vess | Park Place Motorsports | | Porsche | 991 GT America | | Porsche | GTD |
| 81 | Faulkner / Faieta / Huisman | GB Autosport | | Porsche | 991 GT America | | Porsche | GTD |
| 87 | Rayhall / Bielefeld / Ducote | BAR1 Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 90 | Westbrook / Valiante / Rockenfeller | Spirit of Daytona | | Chevrolet | Corvette DP | | Chevrolet | P |
| 91 | Farnbacher / Goossens / Hunter-Reay | SRT Motorsports (USA) | Bill Riley | SRT | Viper | GTS-R | Viper | GTLM |
| 93 | Bomarito / Wittmer / Bell | SRT Motorsports (USA) | Bill Riley | SRT | Viper | GTS-R | Viper | GTLM |
| 94 | Farfus / Cameron / Palttala / Dalla Lana | Turner Motorsport | | BMW | Z4 | E89 GT3 | BMW | GTD |
| 97 | Lamy / Mücke / Turner / Dalla Lana / Stanaway | Aston Martin Racing (GB) | David Richards | Aston Martin | V8 Vantage | GTE | Aston Martin | GTLM |
| 99 | Gurney / Fogarty / Law / Gidley | GAINSCO/Bob Stallings Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 555 | Tucker / Bell / Sweedler / Segal | Level 5 Motorsports | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 556 | LaMarra / Borcheller / Segal | Level 5 Motorsports | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 911 | Tandy / Lietz | Porsche North America (USA) | Jon Bennett | Porsche | 991 RSR | I | Porsche | GTLM |
| 912 | Long / Christensen / Bergmeister | Porsche North America (USA) | Jon Bennett | Porsche | 991 RSR | I | Porsche | GTLM |