| 023 | Triarsi / Koch / Megennis | Triarsi Competizione (USA) | Ferrari | 296 | GT3 Evo | Ferrari | GTD |
| 033 | Calado / Agostini / Molina | Triarsi Competizione (USA) | Ferrari | 296 | GT3 Evo | Ferrari | GTD Pro |
| 04 | Kurtz / Quinn / Sowery | Crowdstrike Racing by APR (P) | Oreca | 07 | | Gibson | LMP2 |
| 1 | Verhagen / De Phillippi / Hesse | 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 / Kirchhöfer | Corvette Racing by Pratt Miller Motorsports (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD Pro |
| 4 | Milner / Catsburg / Varrone | Corvette Racing by Pratt Miller Motorsports (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD Pro |
| 5 | van der Helm / Pino / Frederick | JDC-Miller MotorSports (USA) | Porsche | 963 | | Porsche | GTP |
| 6 | Vanthoor / Estre / Campbell | Porsche Penske Motorsport (D) | Porsche | 963 | | Porsche | GTP |
| 7 | Nasr / Andlauer / Heinrich | Porsche Penske Motorsport (D) | Porsche | 963 | | Porsche | GTP |
| 8 | Farano / Vautier / Alvarez | Tower Motorsports (USA) | Oreca | 07 | | Gibson | LMP2 |
| 9 | Caldarelli / Mitchell / Perera | Pfaff Motorsports (CDN) | Lamborghini | Temerario | GT3 | Lamborghini | GTD Pro |
| 10 | Taylor / Albuquerque / Stevens | Cadillac Wayne Taylor Racing (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 11 | Lütke / Milesi / Heinemeier Hansson | TDS Racing (F) | Oreca | 07 | | Gibson | LMP2 |
| 12 | Telitz / Pedersen / Montecalvo | Vasser Sullivan Racing (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 / Kirkwood | Vasser Sullivan Racing (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 |
| 19 | Hasse-Clot / van der Steur / Baud | van der Steur Racing (USA) | Aston Martin | Vantage AMR | GT3 Evo | Aston Martin | GTD |
| 21 | Mann / Wadoux / 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 / Riberas | Aston Martin THOR Team (USA) | Aston Martin | Valkyrie | AMR-LMH | Aston Martin | GTP |
| 24 | Vanthoor / van der Linde / Frijns | BMW M Team WRT (B) | BMW | M Hybrid V8 | | BMW | GTP |
| 25 | Eng / Wittmann / Magnussen | BMW M Team WRT (B) | BMW | M Hybrid V8 | | BMW | GTP |
| 27 | Gamble / Barrichello / Robichon | Heart of Racing Team (USA) | Aston Martin | Vantage AMR | GT3 Evo | Aston Martin | GTD |
| 28 | Heylen / Machavern / Pumpelly | RS1 (USA) | Porsche | 992 GT3 R | | Porsche | GTD |
| 31 | Aitken / Bamber / Vesti | Cadillac Whelen (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 34 | Franco / Costa / Patrese | Conquest Racing (USA) | Ferrari | 296 | GT3 Evo | Ferrari | GTD |
| 36 | Filippi / Eastwood / Yoluc | DXDT Racing (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD |
| 37 | Jarvis / Lucas / Field | Intersport Racing (USA) | Oreca | 07 | | Gibson | LMP2 |
| 40 | Taylor / Deletraz / Herta | Cadillac Wayne Taylor Racing (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 43 | Dillmann / Garg / Clarke | Inter Europol Competition (PL) | Oreca | 07 | | Gibson | LMP2 |
| 45 | Formal / Hindman / Doyle | Wayne Taylor Racing (USA) | Lamborghini | Huracán | GT3 Evo2 | Lamborghini | GTD |
| 48 | Noble / Hart / Stolz | Winward Racing (USA) | Mercedes-AMG | GT3 | Evo | Mercedes-AMG | GTD Pro |
| 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 | Evo | Mercedes-AMG | GTD |
| 59 | Esterson / Johnson / MacDonald | RLL Team McLaren (USA) | McLaren | 720S | GT3 Evo | McLaren | GTD Pro |
| 60 | Blomqvist / Braun / Dixon | Acura Meyer Shank Racing w/Curb Agajanian (USA) | Acura | ARX-06 | | Acura | GTP |
| 62 | Serra / Rigon / Pier Guidi | Risi Competizione (USA) | Ferrari | 296 | GT3 Evo | Ferrari | GTD Pro |
| 64 | Barker / Olsen / Rockenfeller | Ford Racing (CDN) | Ford | Mustang GT3 | Gen 7 | Ford | GTD Pro |
| 65 | Mies / Vervisch / Priaulx | Ford Racing (CDN) | Ford | Mustang GT3 | Gen 7 | Ford | GTD Pro |
| 66 | Walker / Bechtolsheimer / Hand | Gradient Racing (USA) | Ford | Mustang GT3 | Gen 7 | Ford | GTD |
| 70 | Iribe / Schandorff / 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 / Picariello | AO Racing (USA) | Porsche | 992 GT3 R | | Porsche | GTD Pro |
| 79 | Kraut / Burdon / Fielding | JDC-Miller MotorSports (USA) | Oreca | 07 | | Gibson | LMP2 |
| 80 | Andrews / Hodenius / Roe | Lone Star Racing (USA) | Mercedes-AMG | GT3 | Evo | Mercedes-AMG | GTD |
| 81 | Hedman / Altoè / Stevenson | DragonSpeed (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD |
| 93 | van der Zande / Yelloly / Palou | 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 / Sargent / Ilott | Wright Motorsports (USA) | Porsche | 992 GT3 R | | Porsche | GTD |
| 911 | Preining / Bachler / Feller | Manthey (D) | Porsche | 992 GT3 R | | Porsche | GTD Pro |
| 912 | Pera / Schuring / Hardwick | Manthey 1St Phorm (D) | Porsche | 992 GT3 R | | Porsche | GTD |