| 0 | Meyrick / Legge / Rossi / Chaves | DeltaWing Racing Cars (USA) | | DeltaWing | DWC13 | | Elan | P |
| 007 | Davison / Block / Carter / Davis | TRG-AMR (USA) | Kevin Buckler | Aston Martin | V12 Vantage | GT3 | Aston Martin | GTD |
| 009 | Adam / Lockie / McIntosh II / Nimkoff / Riddle | TRG-AMR (USA) | Kevin Buckler | Aston Martin | V12 Vantage | | Aston Martin | GTD |
| 01 | Pruett / Rojas / McMurray / Karam | Chip Ganassi Racing | | Riley | Mk XXVI | | Ford | P |
| 02 | Dixon / Kanaan / Franchitti / Larson | Chip Ganassi Racing | | Riley | Mk XXVI | | Ford | P |
| 07 | Miller / Nunez / Vautier | SpeedSource (USA) | Sylvain Tremblay | Mazda | Prototype | | Mazda | P |
| 08 | Tagliani / Cumming / Mitchell / Daly | RSR Racing | | Oreca | FLM 09 | | Chevrolet | PC |
| 09 | Ende / Heinemeier Hansson / Junqueira / Menezes | RSR Racing | | Oreca | FLM 09 | | Chevrolet | PC |
| 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 / Frisselle / Bourdais | Action Express Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 6 | Graf / Luhr / Brundle | Muscle Milk Pickett Racing (USA) | | Oreca | 03 | | Nissan | P |
| 7 | Kaffer / Popow / Fuentes / Tutumlu / Marcelli | Starworks Motorsport | | Oreca | FLM 09 | | Chevrolet | PC |
| 8 | van der Zande / Schultis / Lux / Bird | Starworks Motorsport | | Oreca | FLM 09 | | Chevrolet | PC |
| 9 | Giroix / Frisselle / Martin / Frisselle | Action Express Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 10 | Taylor / Taylor / Angelelli / Taylor | Wayne Taylor Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 18 | Bamber / Amos / Blum / Imperatori / Zitza | Muehlner Motorsports America | | Porsche | 991 GT America | | Porsche | GTD |
| 19 | Pobst / Taggart / Gewirtz / Kvamme / Michaelian | Muehlner Motorsports America | | Porsche | 991 GT America | | Porsche | GTD |
| 22 | Keen / MacNeil / Van Gisbergen / Lewis / Dumoulin | Alex Job Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 23 | James / Holzer / Farnbacher / Riberas | Team Seattle/Alex Job Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 25 | Kimber-Smith / Potolicchio / Marsal | 8Star Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 27 | Davis / Foster / Dempsey / Lieb | Dempsey Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 28 | Willsey / Engelhart / Ineichen / Bachler | Dempsey Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 30 | Giermaziak / Cisneros / Thiim / Nielsen | NGT Motorsport | | Porsche | 991 GT America | | Porsche | GTD |
| 31 | Curran / Said / Smith / Papis | Marsh Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 32 | Stippler / Welch / Sofronas / Basseng | GMG Racing | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 33 | Bleekemolen / Keating / 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 | Matos / Ostella / Drissi / Casagrande / Campos | Performance Tech Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 42 | Pla / Rusinov / Yacaman / Webb | OAK Racing (F) | Jacques Nicolet | Morgan | LM P2 | | Nissan | P |
| 44 | Lally / Potter / Henzler / Dumolin | Magnus Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 45 | Pappas / Canache / Pumpelly / 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 | Haase / Rast / Miller / Bell | Paul Miller Racing | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 49 | Perazzini / Ruberti / Roda / Rigon | Spirit of Race | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 50 | Pace / Defoor / Beck / Hinton | Highway To Help | Byron Defoor | Riley | Mk XXVI | | Dinan | P |
| 51 | Gerber / Griffin / Rugolo / Cioci | Spirit of Race | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 52 | Jeannette / Montecalvo / Cheng / Guasch | PR1/Mathiasen Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 54 | Bennett / Gue / Braun / Wilkins | 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 | Bertolini / Jönsson / Krohn / Dumbreck | Krohn Racing | | Ferrari | 458 | Italia GT | Ferrari | GTLM |
| 58 | Heylen / Snow / Seefried | Snow Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 60 | Negri / Pew / Allmendinger / Wilson | Michael Shank Racing with Curb/Agajanian | | Riley | Mk XXVI | | Ford | P |
| 62 | Bruni / Malucelli / Fisichella / Beretta | Risi Competizione (USA) | | Ferrari | 458 | Italia GT | Ferrari | GTLM |
| 63 | Vilander / Balzan / Westphal / Casè | Scuderia Corsa (USA) | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 64 | Wilden / Randall / Farano / Empringham / Johnson | Scuderia Corsa (USA) | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 65 | Serra / Longo / Negrão / Gomes | Scuderia Corsa (USA) | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 70 | Tremblay / Long / Hinchcliffe | SpeedSource (USA) | Sylvain Tremblay | Mazda | Prototype | | Mazda | P |
| 71 | Norman / Siedler / Stanton / Bernhard | Park Place Motorsports | | Porsche | 991 GT America | | Porsche | GTD |
| 72 | Salo / Rotenberg / Mediani / Zlobin / Aleshin | SMP/ESM Racing | Scott Sharp | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 73 | Estre / Lindsey / De Phillippi / Hart / Vess | Park Place Motorsports | | Porsche | 991 GT America | | Porsche | GTD |
| 78 | Hartley / Mayer / Popow / Viso / Saavedra | Starworks Motorsport | | Riley | Mk XXVI | | Dinan | P |
| 81 | Faulkner / Faieta / Avenatti / Huisman | GB Autosport | | Porsche | 991 GT America | | Porsche | GTD |
| 87 | Rayhall / Kovacic / Bielefeld / Kearby / Kasemets | BAR1 Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 90 | Westbrook / Valiante / Rockenfeller | Spirit Of Daytona | | Chevrolet | Corvette DP | | Chevrolet | P |
| 91 | Goossens / Farnbacher / Hunter-Reay | SRT Motorsports (USA) | Bill Riley | SRT | Viper | GTS-R | Viper | GTLM |
| 93 | Bomarito / Bell / Wittmer | 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 / Gidley / Law | GAINSCO/Bob Stallings Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 555 | Bell / Tucker / Sweedler / Segal / Pier Guidi | Level 5 Motorsports | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 556 | Borcheller / Tucker / LaMarra / Cosmo / Valverde | Level 5 Motorsports | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 911 | Tandy / Lietz / Pilet | 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 |