| 04 | Kurtz / Quinn / Sowery / Jakobsen | Crowdstrike Racing by APR (P) | ORECA | 07 | | Gibson | LMP2 |
| 1 | Verhagen / De Phillippi / Hesse / Harper | Paul Miller Racing (USA) | BMW | M4 | G82 GT3 Evo | BMW | GTD Pro |
| 2 | Fayer / McElrea / Jensen | United Autosports USA (USA) | ORECA | 07 | | Gibson | LMP2 |
| 6 | Andlauer / McLaughlin / Campbell / *Nasr / *Newgarden | Porsche Penske Motorsport (D) | Porsche | 963 | | Porsche | GTP |
| 7 | Nasr / Newgarden / Campbell / *Andlauer / *McLaughlin | Porsche Penske Motorsport (D) | Porsche | 963 | | Porsche | GTP |
| 8 | Farano / Bourdais / Alvarez / Foster | Tower Motorsports (USA) | ORECA | 07 | | Gibson | LMP2 |
| 9 | Caldarelli / Mapelli / 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 / Beche / Heinemeier Hansson / Milesi | TDS Racing (F) | ORECA | 07 | | Gibson | LMP2 |
| 12 | Telitz / Pedersen / Montecalvo / Masson | Vasser Sullivan Racing (USA) | Lexus | RC F | GT3 | Lexus | GTD |
| 14 | Hawksworth / Barnicoat / Kirkwood | Vasser Sullivan Racing (USA) | Lexus | RC F | GT3 | Lexus | GTD Pro |
| 16 | Monk / Altzman / Grosjean / *Fraga | Myers Riley Motorsports (USA) | Ford | Mustang GT3 | Gen 7 | Ford | GTD |
| 21 | Mann / Mosca | Af Corse Usa (I) | Ferrari | | | Ferrari | GTD |
| 22 | Goldburg / di Resta / Lindh / Saucy | 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 | Frijns / Rast / Magnussen / Vanthoor / *Eng | BMW M Team WRT (B) | BMW | M Hybrid V8 | | BMW | GTP |
| 25 | Frijns / Magnussen / Wittmann / *Vanthoor / *Rast | BMW M Team WRT (B) | BMW | M Hybrid V8 | | BMW | GTP |
| 28 | Zitza / Heylen | RS1 (USA) | Porsche | 992 GT3 R | I | Porsche | GTD |
| 31 | Vesti / Aitken / Bamber / Zilisch | Cadillac Whelen (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 37 | Field / Jarvis / Lucas | Intersport Racing (USA) | ORECA | 07 | | Gibson | LMP2 |
| 40 | Taylor / Deletraz / Herta | Cadillac Wayne Taylor Racing (USA) | Cadillac | V-Series.R | | Cadillac | GTP |
| 43 | Clarke / Dillmann / Garg / Siegel | Inter Europol Competition (PL) | ORECA | 07 | | Gibson | LMP2 |
| 44 | Potter / Pumpelly / Thiim | 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 |
| 48 | Noble / Hart / Martin / Stolz | WINWARD RACING (USA) | Mercedes-AMG | GT3 | | Mercedes-AMG | GTD Pro |
| 52 | Goikhberg / Keating / Thompson / Vautier | Bryan Herta Autosport with PR1/Mathiasen (USA) | ORECA | 07 | | Gibson | LMP2 |
| 57 | Ward / Ellis / Dontje / Auer | WINWARD RACING (USA) | Mercedes-AMG | GT3 | | Mercedes-AMG | GTD |
| 59 | MacDonald / Vips / Esterson | RLL Team McLaren (USA) | McLaren | 720S | GT3 | McLaren | GTD Pro |
| 60 | Blomqvist / Braun / Allmendinger / *Dixon | Acura Meyer Shank Racing w/Curb Agajanian (USA) | Acura | ARX-06 | | Acura | GTP |
| 64 | Barker / Olsen / Rockenfeller | Ford Multimatic Motorsports (CDN) | Ford | Mustang GT3 | Gen 7 | Ford | GTD Pro |
| 65 | Mies / Vervisch / Priaulx | Ford Multimatic Motorsports (CDN) | Ford | Mustang GT3 | Gen 7 | Ford | GTD Pro |
| 73 | Fittipaldi / Espirito Santo / Cumming / Fittipaldi | Pratt Miller Motorsports (USA) | ORECA | 07 | | Gibson | LMP2 |
| 75 | Habul / Grenier / Power | 75 Express (AUS) | Mercedes-AMG | GT3 | | Mercedes-AMG | GTD Pro |
| 85 | Aron / van der Helm / Campbell / Pino | JDC-Miller MotorSports (USA) | Porsche | 963 | | Porsche | GTP |
| 93 | van der Zande / Yelloly / Palou | Acura Meyer Shank Racing w/Curb Agajanian (USA) | Acura | ARX-06 | | Acura | GTP |
| 99 | Hyett / Cameron / Edgar / Rasmussen | AO Racing (USA) | ORECA | 07 | | Gibson | LMP2 |
| 120 | Adelson / Skeer / Sargent / Ilott | Wright Motorsports (USA) | Porsche | 992 GT3 R | I | Porsche | GTD |
| 911 | Preining / Pera / Hardwick | Manthey (D) | Porsche | 992 GT3 R | I | Porsche | GTD Pro |