| 0 | Meyrick / Legge / Chaves | DeltaWing Racing Cars (USA) | | DeltaWing | DWC13 | | Elan | P |
| 007 | Davison / Block / Carter | TRG-AMR (USA) | Kevin Buckler | Aston Martin | V12 Vantage | GT3 | Aston Martin | GTD |
| 009 | Davis / Wilson / Riddle | TRG-AMR (USA) | Kevin Buckler | Aston Martin | V12 Vantage | | Aston Martin | GTD |
| 01 | Pruett / Rojas / Franchitti | Chip Ganassi Racing | | Riley | Mk XXVI | | Ford | P |
| 02 | Dixon / Kanaan / Karam | Chip Ganassi Racing | | Riley | Mk XXVI | | Ford | P |
| 07 | Miller / Nunez / Vautier | SpeedSource (USA) | Sylvain Tremblay | Mazda | Prototype | | Mazda | P |
| 08 | Tagliani / Cumming / Mitchell | RSR Racing | | Oreca | FLM 09 | | Chevrolet | PC |
| 09 | Ende / Heinemeier Hansson / Junqueira | 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 | Extreme Speed Motorsports (USA) | Scott Sharp | HPD | ARX-03 | b | Honda | P |
| 3 | Garcia / Magnussen / 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 | Luhr / Graf / Mardenborough | Muscle Milk Pickett Racing (USA) | | Oreca | 03 | | Nissan | P |
| 7 | | Starworks Motorsport | | Oreca | FLM 09 | | Chevrolet | PC |
| 8 | van der Zande / Bird / Fuentes / Cheng | Starworks Motorsport | | Oreca | FLM 09 | | Chevrolet | PC |
| 9 | Frisselle / Frisselle / Fogarty | Action Express Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 10 | Taylor / Angelelli / Taylor | Wayne Taylor Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 13 | Heylen / Plumb / Snow / Plumb | Rum Bum/Snow Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 17 | Henzler / Sellers / Holzer | Team Falken Tire | | Porsche | 991 RSR | I | Porsche | GTLM |
| 18 | Bamber / Verdonck | Muehlner Motorsports America | | Porsche | 991 GT America | | Porsche | GTD |
| 19 | Bamber / Melgrati / Gimple | Muehlner Motorsports America | | Porsche | 991 GT America | | Porsche | GTD |
| 22 | Keen / MacNeil / Frommenwiler | Alex Job Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 23 | James / Riberas / Farnbacher | Team Seattle/Alex Job Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 25 | Kimber-Smith / Marsal / Lux / Rayhall | 8Star Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 27 | Davis / Dempsey / Siedler / Foster | Dempsey Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 28 | Ineichen / Engelhart / Konrad | Dempsey Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 30 | Giermaziak / Cisneros / Nielsen | MOMO / NGT Motorsport | | Porsche | 991 GT America | | Porsche | GTD |
| 31 | Curran / Said / Cosmo | Marsh Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 32 | Basseng / Welch / Sofronas | GMG Racing | | Audi | R8 LMS | | Audi | GTD |
| 33 | Keating / Bleekemolen / Bleekemolen | Riley Motorsports (USA) | Bill Riley | SRT | Viper | GT3-R | Viper | GTD |
| 35 | Neiman / von Moltke / Albuquerque | Flying Lizard Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 38 | Matos / Shears / Ostella | Performance Tech Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 42 | Pla / Brundle / Yacaman | OAK Racing (F) | Jacques Nicolet | Morgan | LM P2 | | Nissan | P |
| 44 | Potter / Lally / Seefried | Magnus Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 45 | Canache / Pumpelly / Winkelhock / Latif | Flying Lizard Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 46 | Mies / Putman / Espenlaub | Fall-Line Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 48 | Haase / Miller / Bell | Paul Miller Racing | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 49 | Ruberti / Roda / Venturi | Spirit of Race | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 50 | Pace / Defoor / Hinton | Highway To Help | | Riley | Mk XXVI | | Dinan | P |
| 51 | Gerber / Griffin / Rugolo / Cioci | Spirit of Race | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 52 | Jeannette / Guasch / Montecalvo | PR1/Mathiasen Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 54 | Gue / Bennett / Braun | Core Autosport | | Oreca | FLM 09 | | Chevrolet | PC |
| 55 | Auberlen / Priaulx / Hand | BMW Team RLL (USA) | | BMW | Z4 | GTE | BMW | GTLM |
| 56 | Edwards / Müller / Werner | BMW Team RLL (USA) | | BMW | Z4 | GTE | BMW | GTLM |
| 57 | Bertolini / Jönsson / Krohn | Krohn Racing | | Ferrari | 458 | Italia GT | Ferrari | GTLM |
| 60 | Negri / Pew / Wilson | Michael Shank Racing with Curb/Agajanian | | Riley | Mk XXVI | | Ford | P |
| 62 | Bruni / Malucelli / Fisichella | Risi Competizione (USA) | | Ferrari | 458 | Italia GT | Ferrari | GTLM |
| 63 | Balzan / Casè / Marcelli / Westphal | Scuderia Corsa (USA) | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 70 | Tremblay / Long / Devlin | SpeedSource (USA) | Sylvain Tremblay | Mazda | Prototype | | Mazda | P |
| 71 | Norman / Lindsey / Estre / Vess | Park Place Motorsports | | Porsche | 991 GT America | | Porsche | GTD |
| 73 | Estre / Norman / Vess / Lindsey | Park Place Motorsports | | Porsche | 991 GT America | | Porsche | GTD |
| 78 | Popow / Kaffer / Mayer / Saavedra | Starworks Motorsport | | Riley | Mk XXVI | | Honda | P |
| 81 | Faulkner / Faieta / Avenatti | GB Autosport | | Porsche | 991 GT America | | Porsche | GTD |
| 85 | Miller / Kraut / Simpson | JDC/Miller Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 87 | Kasemets / Kearby / Hamilton | BAR1 Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 88 | Plowman / Bielefeld / Ducote / Drissi | 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) | | SRT | Viper | GTS-R | Viper | GTLM |
| 93 | Wittmer / Bell / Bomarito | SRT Motorsports (USA) | | SRT | Viper | GTS-R | Viper | GTLM |
| 94 | Cameron / Palttala / Dalla Lana / Lewis | Turner Motorsport | | BMW | Z4 | E89 GT3 | BMW | GTD |
| 555 | Sweedler / Mediani / Bell / Segal | AIM Autosport | | 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 |