| 023 | Triarsi / Koch / Megennis | Triarsi Competizione (USA) | Ferrari | 296 | GT3 Evo | Ferrari | GTD |
| 033 | Calado / Agostini | Triarsi Competizione (USA) | Ferrari | 296 | GT3 Evo | Ferrari | GTD Pro |
| 04 | Kurtz / Quinn / Sowery | Crowdstrike Racing by APR (P) | ORECA | 07 | | Gibson | LMP2 |
| 068 | Hasse-Clot / Estep / Fossard | Car Blanche (USA) | Aston Martin | Vantage AMR | GT3 Evo | Aston Martin | GTD |
| 1 | Verhagen / De Phillippi | Paul Miller Racing (USA) | BMW | M4 | G82 GT3 Evo | BMW | GTD Pro |
| 2 | Fayer / McElrea / Jensen | United Autosports USA (USA) | ORECA | 07 | | Gibson | LMP2 |
| 3 | Garcia / Sims | Corvette Racing by Pratt Miller Motorsports (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD Pro |
| 4 | Milner / Catsburg | Corvette Racing by Pratt Miller Motorsports (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD Pro |
| 5 | van der Helm / Heinrich / Frederick | JDC-Miller MotorSports (USA) | Porsche | 963 | | Porsche | GTP |
| 6 | Vanthoor / Estre | Porsche Penske Motorsport (D) | Porsche | 963 | | Porsche | GTP |
| 7 | Nasr / Andlauer | Porsche Penske Motorsport (D) | Porsche | 963 | | Porsche | GTP |
| 8 | Farano / Vautier / Alvarez | Tower Motorsports (USA) | ORECA | 07 | | Gibson | LMP2 |
| 9 | Caldarelli / Mitchell | Pfaff Motorsports (CDN) | Lamborghini | Temerario | GT3 | Lamborghini | GTD Pro |
| 10 | Taylor / Albuquerque | Cadillac Wayne Taylor Racing (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 11 | Lütke / Heinemeier Hansson / *Beche | TDS Racing (F) | ORECA | 07 | | Gibson | LMP2 |
| 12 | Telitz / Pedersen / Montecalvo | Vasser Sullivan Racing w/Dreyer & Reinbold (USA) | Lexus | RC F | GT3 | Lexus | GTD |
| 13 | Fidani / Bell / Kern | 13 Autosport (CDN) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD |
| 14 | Hawksworth / Barnicoat | Vasser Sullivan Racing w/Dreyer & Reinbold (USA) | Lexus | RC F | GT3 | Lexus | GTD Pro |
| 16 | Monk / Fraga / Altzman | Myers Riley Motorsports (USA) | Ford | Mustang GT3 | Gen 7 | Ford | GTD |
| 18 | Rao / Habsburg / Abel | Era Motorsport (USA) | ORECA | 07 | | Gibson | LMP2 |
| 21 | Mann / Udell / Fuoco | Af Corse Usa (I) | Ferrari | 296 | GT3 Evo | Ferrari | GTD |
| 22 | Goldburg / di Resta / Lindh | United Autosports USA (USA) | ORECA | 07 | | Gibson | LMP2 |
| 23 | Gunn / de Angelis | ASTON MARTIN THOR Team (USA) | Aston Martin | Valkyrie | AMR-LMH | Aston Martin | GTP |
| 24 | Vanthoor / van der Linde | BMW M Team WRT (B) | BMW | M Hybrid V8 | | BMW | GTP |
| 25 | Eng / Wittmann | BMW M Team WRT (B) | BMW | M Hybrid V8 | | BMW | GTP |
| 27 | Barrichello / Gamble / Robichon | Heart of Racing Team (USA) | Aston Martin | Vantage AMR | GT3 Evo | Aston Martin | GTD |
| 28 | Lux / Machavern / Heylen | Rs1 (USA) | Porsche | 992 GT3 R | | Porsche | GTD |
| 31 | Aitken / Bamber / Vesti | Cadillac Whelen (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 34 | Costa / Patrese / Rueda | Conquest Racing (USA) | Ferrari | 296 | GT3 Evo | Ferrari | GTD |
| 36 | Filippi / Yoluc / Eastwood | DXDT Racing (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD |
| 37 | Field / *Jarvis / *Lucas | Intersport Racing (USA) | ORECA | 07 | | Gibson | LMP2 |
| 40 | Taylor / Deletraz | Cadillac Wayne Taylor Racing (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 43 | Dillmann / Garg / Clarke | Inter Europol Competition (PL) | ORECA | 07 | | Gibson | LMP2 |
| 44 | Potter / Pumpelly / *Farnbacher | Magnus Racing (USA) | Aston Martin | Vantage AMR | GT3 Evo | Aston Martin | GTD |
| 45 | Formal / Hindman / Doyle | Wayne Taylor Racing (USA) | Lamborghini | Huracán | GT3 Evo2 | Lamborghini | GTD |
| 52 | Goikhberg / Thompson / Tincknell | Bryan Herta Autosport with PR1/Mathiasen (USA) | ORECA | 07 | | Gibson | LMP2 |
| 57 | Ward / Ellis / Dontje | WINWARD RACING (USA) | Mercedes-AMG | GT3 | | Mercedes-AMG | GTD |
| 59 | Esterson / Johnson | RLL Team McLaren (USA) | McLaren | 720S | GT3 Evo | McLaren | GTD Pro |
| 60 | Blomqvist / Braun | Acura Meyer Shank Racing w/Curb Agajanian (USA) | Acura | ARX-06 | | Acura | GTP |
| 62 | Serra / Rigon | Risi Competizione (USA) | Ferrari | 296 | GT3 Evo | Ferrari | GTD Pro |
| 64 | Barker / Olsen | Ford Racing (CDN) | Ford | Mustang GT3 | Gen 7 | Ford | GTD Pro |
| 65 | Mies / Vervisch | Ford Racing (CDN) | Ford | Mustang GT3 | Gen 7 | Ford | GTD Pro |
| 66 | Walker / Bechtolsheimer / Lewis | Gradient Racing (USA) | Ford | Mustang GT3 | Gen 7 | Ford | GTD |
| 70 | Iribe / Evans / Millroy | Inception Racing (GB) | Ferrari | 296 | GT3 Evo | Ferrari | GTD |
| 73 | Fittipaldi / Espirito Santo / Cumming | Pratt Miller Motorsports (USA) | ORECA | 07 | | Gibson | LMP2 |
| 77 | Tandy / King | AO Racing (USA) | Porsche | 992 GT3 R | | Porsche | GTD Pro |
| 80 | Andrews / Hodenius / Roe | Lone Star Racing (USA) | Mercedes-AMG | GT3 | | Mercedes-AMG | GTD |
| 81 | Hedman / Altoè / Stevenson | DragonSpeed (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD |
| 93 | van der Zande / Yelloly / Ohta | Acura Meyer Shank Racing w/Curb Agajanian (USA) | Acura | ARX-06 | | Acura | GTP |
| 96 | Gallagher / Foley / Selldorff | Turner Motorsport (USA) | BMW | M4 | G82 GT3 Evo | BMW | GTD |
| 99 | Hyett / Cameron / Edgar | AO Racing (USA) | ORECA | 07 | | Gibson | LMP2 |
| 120 | Adelson / Ilott / Sargent | Wright Motorsports (USA) | Porsche | 992 GT3 R | | Porsche | GTD |
| 911 | Christensen / Hartog / *Bachler | Manthey (D) | Porsche | 992 GT3 R | | Porsche | GTD Pro |
| 912 | Hardwick / Pera / Lietz | Manthey 1St Phorm (D) | Porsche | 992 GT3 R | | Porsche | GTD |