| 021 | Muss / Miller / Schirò | Triarsi Competizione (USA) | Ferrari | 296 | GT3 | Ferrari | GTD |
| 023 | Triarsi / Koch / Calado | Triarsi Competizione (USA) | Ferrari | 296 | GT3 | Ferrari | GTD |
| 04 | Kurtz / Jakobsen / Sowery | Crowdstrike Racing by APR (P) | ORECA | 07 | | Gibson | LMP2 |
| 1 | Snow / Verhagen / De Phillippi | Paul Miller Racing (USA) | BMW | M4 | G82 GT3 Evo | BMW | GTD Pro |
| 2 | Boulle / Hanley / Correa | 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 (I) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD Pro |
| 6 | Jaminet / Campbell | Porsche Penske Motorsport (D) | Porsche | 963 | | Porsche | GTP |
| 7 | Nasr / Tandy | Porsche Penske Motorsport (D) | Porsche | 963 | | Porsche | GTP |
| 8 | Farano / Alvarez / Bourdais | Tower Motorsports (USA) | ORECA | 07 | | Gibson | LMP2 |
| 9 | Caldarelli / Mapelli | Pfaff Motorsports (CDN) | Lamborghini | Huracán | GT3 Evo2 | Lamborghini | GTD Pro |
| 10 | Taylor / Albuquerque | Wayne Taylor Racing (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 11 | Thomas / Jensen / McElrea | TDS Racing (F) | ORECA | 07 | | Gibson | LMP2 |
| 12 | Hawksworth / Thompson / Montecalvo | Vasser Sullivan Racing (USA) | Lexus | RC F | GT3 | Lexus | GTD |
| 13 | Fidani / Bell / Kern | AWA (CDN) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD |
| 14 | Barnicoat / Telitz | Vasser Sullivan Racing (USA) | Lexus | RC F | GT3 | Lexus | GTD Pro |
| 18 | Lütke / Heinemeier Hansson / *Jarvis | Era Motorsport (USA) | ORECA | 07 | | Gibson | LMP2 |
| 19 | McIntosh / Barrichello / *Hasse-Clot | van der Steur Racing (USA) | Aston Martin | Vantage AMR | GT3 Evo | Aston Martin | GTD |
| 21 | Wadoux / *Mann / *Pier Guidi | Af Corse (I) | Ferrari | 296 | GT3 | 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 | Eng / Vanthoor | BMW M Team RLL (USA) | BMW | M Hybrid V8 | | BMW | GTP |
| 25 | Wittmann / van der Linde | BMW M Team RLL (USA) | BMW | M Hybrid V8 | | BMW | GTP |
| 27 | Gamble / Stevenson / Robichon | Heart of Racing Team (USA) | Aston Martin | Vantage AMR | GT3 Evo | Aston Martin | GTD |
| 31 | Aitken / Bamber / Vesti | Cadillac Whelen (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 34 | Franco / Serra / Tuck | Conquest Racing (USA) | Ferrari | 296 | GT3 | Ferrari | GTD |
| 36 | Udell / Yoluc / *Eastwood | DXDT Racing (USA) | Chevrolet | Corvette C8 | Z06 GT3.R | Chevrolet | GTD |
| 40 | Taylor / Deletraz | 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 |
| 47 | Lacorte / Patrese / Fuoco | CETILAR RACING (I) | Ferrari | 296 | GT3 | Ferrari | GTD |
| 48 | Hesse / Harper | Paul Miller Racing (USA) | BMW | M4 | G82 GT3 Evo | BMW | GTD Pro |
| 52 | Rao / Pedersen / Sargeant | PR1 Mathiasen Motorsports (USA) | ORECA | 07 | | Gibson | LMP2 |
| 57 | Ward / Ellis / Dontje | Winward Racing (USA) | Mercedes-AMG | GT3 | | Mercedes-AMG | GTD |
| 60 | Blomqvist / Braun | Acura Meyer Shank Racing w/Curb Agajanian (USA) | Acura | ARX-06 | | Acura | GTP |
| 63 | Grosjean / Mortara | Automobili Lamborghini Squadra Corse (I) | Lamborghini | SC63 | | Lamborghini | GTP |
| 64 | Rockenfeller / Priaulx | Ford Multimatic Motorsports (CDN) | Ford | Mustang GT3 | Gen 7 | Ford | GTD Pro |
| 65 | Mies / Vervisch | Ford Multimatic Motorsports (CDN) | Ford | Mustang GT3 | Gen 7 | Ford | GTD Pro |
| 66 | Bechtolsheimer / Filippi / Hand | Gradient Racing (USA) | Ford | Mustang GT3 | Gen 7 | Ford | GTD |
| 70 | Iribe / Schandorff / Millroy | Inception Racing (GB) | Ferrari | 296 | GT3 | Ferrari | GTD |
| 73 | Fittipaldi / Roe / Cumming | Pratt Miller Motorsports (USA) | ORECA | 07 | | Gibson | LMP2 |
| 74 | Robinson / Fraga / Burdon | Riley (USA) | ORECA | 07 | | Gibson | LMP2 |
| 75 | Habul / Feeney / Grenier | 75 Express (AUS) | Mercedes-AMG | GT3 | | Mercedes-AMG | GTD Pro |
| 77 | Heinrich / Bachler | AO Racing (USA) | Porsche | 992 GT3 R | I | Porsche | GTD Pro |
| 78 | Goikhberg / Farnbacher / Filgueiras | Forte Racing (USA) | Lamborghini | Huracán | GT3 Evo2 | Lamborghini | GTD |
| 80 | Hodenius / Brichacek / *Andrews | Lone Star Racing (USA) | Mercedes-AMG | GT3 | | Mercedes-AMG | GTD |
| 81 | Costa / Rigon | DragonSpeed (USA) | Ferrari | 296 | GT3 | Ferrari | GTD Pro |
| 85 | van der Helm / Müller | JDC Miller MotorSports (USA) | Porsche | 963 | | Porsche | GTP |
| 88 | Pérez Companc / Pérez Companc / Nielsen | Af Corse (I) | ORECA | 07 | | Gibson | LMP2 |
| 93 | van der Zande / Yelloly / Ohta | Acura Meyer Shank Racing w/Curb Agajanian (USA) | Acura | ARX-06 | | Acura | GTP |
| 96 | Gallagher / Foley / Walker | Turner Motorsport (USA) | BMW | M4 | G82 GT3 Evo | BMW | GTD |
| 99 | Hyett / Cameron / Edgar | AO Racing (USA) | ORECA | 07 | | Gibson | LMP2 |
| 120 | Adelson / Skeer / Sargent | Wright Motorsports (USA) | Porsche | 992 GT3 R | I | Porsche | GTD |