| 0 | Legge / Chaves | DeltaWing Racing Cars (USA) | | DeltaWing | DWC13 | | Elan | P |
| 007 | Carter / Davison / Block | TRG-AMR (USA) | Kevin Buckler | Aston Martin | V12 Vantage | GT3 | Aston Martin | GTD |
| 01 | Pruett / Rojas / Karam | Chip Ganassi Racing with Felix Sabates | | Riley | Mk XXVI | | Ford | P |
| 07 | Miller / Nunez / Vautier | SpeedSource (USA) | Sylvain Tremblay | Mazda | Prototype | | Mazda | P |
| 08 | Cumming / Tagliani / Mitchell | RSR Racing | | Oreca | FLM 09 | | Chevrolet | PC |
| 09 | Ende / Lewis / Junqueira | RSR Racing | | Oreca | FLM 09 | | Chevrolet | PC |
| 1 | Sharp / Dalziel | Extreme Speed Motorsports (USA) | Scott Sharp | HPD | ARX-03 | b | Honda | P |
| 2 | Brown / Lazzaro / Van Overbeek | Extreme Speed Motorsports (USA) | Scott Sharp | HPD | ARX-03 | b | Honda | P |
| 3 | Magnussen / Garcia | Corvette Racing (USA) | | Chevrolet | Corvette C7 | .R | Chevrolet | GTLM |
| 4 | Gavin / Milner | Corvette Racing (USA) | | Chevrolet | Corvette C7 | .R | Chevrolet | GTLM |
| 5 | Barbosa / Fittipaldi / Frisselle | Action Express Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 7 | Fuentes / Martin | Starworks Motorsport | | Oreca | FLM 09 | | Chevrolet | PC |
| 8 | van der Zande / Schultis | Starworks Motorsport | | Oreca | FLM 09 | | Chevrolet | PC |
| 9 | Frisselle / Fogarty / Frisselle | Action Express Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 10 | Taylor / Taylor / Angelelli | Konica Minolta Chevrolet Corvette Dallara for Wayne Taylor Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 17 | Henzler / Sellers | Team Falken Tire | | Porsche | 991 RSR | I | Porsche | GTLM |
| 18 | Madsen / Ludwig / Calvert-Jones | Muehlner Motorsports America | | Porsche | 991 GT America | | Porsche | GTD |
| 19 | | Muehlner Motorsports America | | Porsche | 991 GT America | | Porsche | GTD |
| 22 | MacNeil / Keen / Frommenwiler | Alex Job Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 23 | James / Farnbacher | Team Seattle/Alex Job Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 25 | Lux / Rayhall / Kimber-Smith | 8Star Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 27 | Dempsey / Davis / Foster | Dempsey Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 30 | Nielsen / Giermaziak | MOMO / NGT Motorsport | | Porsche | 991 GT America | | Porsche | GTD |
| 31 | Curran / Said / Cosmo | Marsh Racing | | Chevrolet | Corvette DP | | Chevrolet | P |
| 33 | Bleekemolen / Keating | Riley Motorsports (USA) | Bill Riley | Dodge | Viper | SRT GT3-R | Viper | GTD |
| 35 | Neiman / von Moltke / Pumpelly | Flying Lizard Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 38 | Ostella / Hedlund | Performance Tech Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 42 | Yacaman / Brundle / Tung | OAK Racing (F) | Jacques Nicolet | Morgan | LM P2 | | Nissan | P |
| 44 | Potter / Lally / Asch | Magnus Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 45 | Canache / Pumpelly / Sandberg | Flying Lizard Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 46 | Espenlaub / Putman / Bonanomi | Fall-Line Motorsports | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 48 | Haase / Miller | Paul Miller Racing | | Audi | R8 LMS | Grand-Am | Audi | GTD |
| 51 | Griffin / Gerber / Rugolo | Spirit of Race | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 52 | Montecalvo / Jeannette | PR1/Mathiasen Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 54 | Bennett / Braun / Gue | Core Autosport | | Oreca | FLM 09 | | Chevrolet | PC |
| 55 | Auberlen / Priaulx | BMW Team RLL (USA) | | BMW | Z4 | GTE | BMW | GTLM |
| 56 | Edwards / Müller | BMW Team RLL (USA) | | BMW | Z4 | GTE | BMW | GTLM |
| 57 | Krohn / Jönsson | Krohn Racing | | Ferrari | 458 | Italia GT | Ferrari | GTLM |
| 58 | Snow / Heylen | Snow Racing | | Porsche | 991 GT America | | Porsche | GTD |
| 60 | Pew / Negri | Michael Shank Racing with Curb/Agajanian | | Riley | Mk XXVI | | Ford | P |
| 62 | Kaffer / Fisichella | Risi Competizione (USA) | | Ferrari | 458 | Italia GT | Ferrari | GTLM |
| 63 | Balzan / Westphal / Davis | Scuderia Corsa (USA) | | Ferrari | 458 | Italia Grand-Am | Ferrari | GTD |
| 70 | Tremblay / Long / Devlin | SpeedSource (USA) | Sylvain Tremblay | Mazda | Prototype | | Mazda | P |
| 71 | | Park Place Motorsports | | Porsche | 991 GT America | | Porsche | GTD |
| 73 | Lindsey / Norman / van Lagen | Park Place Motorsports | | Porsche | 991 GT America | | Porsche | GTD |
| 81 | Barker / Faulkner / Avenatti | GB Autosport | | Porsche | 991 GT America | | Porsche | GTD |
| 85 | Miller / Simpson / Drissi | JDC/Miller Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 88 | Bielefeld / Plowman / Cheng | BAR1 Motorsports | | Oreca | FLM 09 | | Chevrolet | PC |
| 90 | Westbrook / Valiante | Spirit of Daytona | | Chevrolet | Corvette DP | | Chevrolet | P |
| 91 | Farnbacher / Goossens / Bomarito | SRT Motorsports (USA) | | Dodge | Viper | SRT GTS-R | Viper | GTLM |
| 93 | Bomarito / Wittmer / Goossens | SRT Motorsports (USA) | | Dodge | Viper | SRT GTS-R | Viper | GTLM |
| 94 | Palttala / Cameron | Turner Motorsport | | BMW | Z4 | E89 GT3 | BMW | GTD |
| 555 | Sweedler / Bell | 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 / Pilet | Porsche North America (USA) | Jon Bennett | Porsche | 991 RSR | I | Porsche | GTLM |