| 1 | Wadoux / Ogier / Milesi | Oreca 07 Gibson | Richard Mille Racing Team | | LMP2 | |
| 3 | Hörr / Glorieux / Cougnaud | Oreca 07 Gibson | DKR Engineering | | LMP2 | Pro-Am |
| 5 | Cameron / Collard / Nasr | Oreca 07 Gibson | Team Penske | | LMP2 | |
| 7 | Conway / Kobayashi / Lopez | Toyota GR010 Hybrid | Toyota Gazoo Racing | | LMH | |
| 8 | Buemi / Hartley / Hirakawa | Toyota GR010 Hybrid | Toyota Gazoo Racing | | LMH | |
| 9 | Kubica / Deletraz / Colombo | Oreca 07 Gibson | Prema Orlen Team | | LMP2 | |
| 10 | Müller / Cullen / Bourdais | Oreca 07 Gibson | Vector Sport | | LMP2 | |
| 13T | Beche / van der Helm / de Vries | Oreca 07 Gibson | TDS Racing x Vaillante | | LMP2 | |
| 21 | Mann / Ulrich / Vilander | Ferrari 488 GTE Evo | AF Corse | | GTE Am | |
| 22 | Hanson / Albuquerque / Owen | Oreca 07 Gibson | United Autosports USA | | LMP2 | |
| 23 | Lynn / Jarvis / Pierson | Oreca 07 Gibson | United Autosports USA | | LMP2 | |
| 24 | Sales / Bell / Hanley | Oreca 07 Gibson | Nielsen Racing | | LMP2 | Pro-Am |
| 27 | Cresp / Jensen / Palette | Ligier JSP217 Gibson | CD Sport | | LMP2 | Pro-Am |
| 28 | Rasmussen / Jones / Aberdein | Oreca 07 Gibson | Jota | | LMP2 | |
| 30 | Bradley / Rojas / de Gerus | Oreca 07 Gibson | Duqueine Team | | LMP2 | |
| 31 | Gelael / Frijns / Rast | Oreca 07 Gibson | WRT | | LMP2 | |
| 32 | Ineichen / Bortolotti / Vanthoor | Oreca 07 Gibson | Team WRT | | LMP2 | |
| 33 | Keating / Chaves / Sorensen | Aston Martin Vantage AMR | TF Sport | | GTE Am | |
| 34 | Smiechowski / Brundle / Gutierrez | Oreca 07 Gibson | Inter Europol Competition | | LMP2 | |
| 35 | Lahaye / Lahaye / Heriau | Oreca 07 Gibson | Ultimate | | LMP2 | Pro-Am |
| 36 | Negrão / Lapierre / Vaxiviere | Alpine A480 Gibson | Alpine Elf Team | | LMH | |
| 37 | Ye / Taylor / Krütten | Oreca 07 Gibson | Cool Racing | | LMP2 | |
| 38 | Gonzalez / Da Costa / Stevens | Oreca 07 Gibson | Jota | | LMP2 | |
| 39 | Trouillet / Page / Droux | Oreca 07 Gibson | Graff Racing | | LMP2 | Pro-Am |
| 41 | Andrade / Habsburg / Nato | Oreca 07 Gibson | Realteam by WRT | | LMP2 | |
| 43 | Heinemeier Hansson / Scherer / Fittipaldi | Oreca 07 Gibson | Inter Europol Competition | | LMP2 | |
| 44 | Konôpka / Viscaal / Vautier | Oreca 07 Gibson | ARC Bratislava | | LMP2 | Pro-Am |
| 45 | Thomas / Allen / Binder | Oreca 07 Gibson | Algarve Pro Racing | | LMP2 | Pro-Am |
| 46 | Cairoli / Pedersen / Leutwiler | Porsche 911 RSR 19 | Team Project 1 | | GTE Am | |
| 47 | Floersch / Falb / Aitken | Oreca 07 Gibson | Algarve Pro Racing | | LMP2 | Pro-Am |
| 48 | Lafargue / Chatin / Pilet | Oreca 07 Gibson | IDEC Sport | | LMP2 | |
| 51 | Pier Guidi / Calado / Serra | Ferrari 488 GTE Evo | AF Corse | | GTE Pro | |
| 52 | Molina / Fuoco / Rigon | Ferrari 488 GTE Evo | AF Corse | | GTE Pro | |
| 54 | Flohr / Castellacci / Cassidy | Ferrari 488 GTE Evo | AF Corse | | GTE Am | |
| 55 | Cameron / Griffin / Perel | Ferrari 488 GTE Evo | Spirit of Race | | GTE Am | |
| 56 | Iribe / Millroy / Barnicoat | Porsche 911 RSR 19 | Team Project 1 | | GTE Am | |
| 57 | Kimura / Schandorff / Jensen | Ferrari 488 GTE Evo | Kessel Racing | | GTE Am | |
| 59 | West / Ledogar / Klein | Ferrari 488 GTE Evo | Inception Racing | | GTE Am | |
| 60 | Schiavoni / Balzan / Giammaria | Ferrari 488 GTE Evo | Iron Lynx | | GTE Am | |
| 61 | Prette / Grunewald / Abril | Ferrari 488 GTE Evo | AF Corse | | GTE Am | |
| 63 | Garcia / Taylor / Catsburg | Chevrolet Corvette C8.R | Corvette Racing | | GTE Pro | |
| 64 | Milner / Tandy / Sims | Chevrolet Corvette C8.R | Corvette Racing | | GTE Pro | |
| 65 | Canal / Jamin / van Uitert | Oreca 07 Gibson | Panis Racing | | LMP2 | |
| 66 | van der Zande / Kvamme / Hart | Ferrari 488 GTE Evo | JMW Motorsport | | GTE Am | |
| 71 | Dezoteux / Ragues / Aubry | Ferrari 488 GTE Evo | Spirit of Race | | GTE Am | |
| 74 | Fraga / Bird / Van Gisbergen | Ferrari 488 GTE Evo | Riley Motorsports | | GTE Pro | |
| 75 | Ehret / Hook / Varrone | Ferrari 488 GTE Evo | Iron Lynx | | GTE Am | |
| 77 | Ried / Priaulx / Tincknell | Porsche 911 RSR 19 | Dempsey-Proton Racing | | GTE Am | |
| 79 | MacNeil / Andlauer / Merrill | Porsche 911 RSR 19 | Weathertech Racing | | GTE Am | |
| 80 | Cressoni / Fisichella / Heistand | Ferrari 488 GTE Evo | Iron Lynx | | GTE Am | |
| 83 | Perrodo / Nielsen / Rovera | Oreca 07 Gibson | AF Corse | | LMP2 | Pro-Am |
| 85 | Frey / Gatting / Bovy | Ferrari 488 GTE Evo | Iron Dames | | GTE Am | |
| 86 | Wainwright / Pera / Barker | Porsche 911 RSR 19 | GR Racing | | GTE Am | |
| 88 | Poordad / Root / Heylen | Porsche 911 RSR 19 | Dempsey-Proton Racing | | GTE Am | |
| 91 | Bruni / Lietz / Makowiecki | Porsche 911 RSR 19 | Porsche GT Team | | GTE Pro | |
| 92 | Christensen / Estre / Vanthoor | Porsche 911 RSR 19 | Porsche GT Team | | GTE Pro | |
| 93 | Fassbender / Campbell / Robichon | Porsche 911 RSR 19 | Proton Competition | | GTE Am | |
| 98 | Dalla Lana / Pittard / Thiim | Aston Martin Vantage AMR | Northwest AMR | | GTE Am | |
| 99 | Haryanto / Picariello / Rump | Porsche 911 RSR 19 | Hardpoint Motorsport | | GTE Am | |
| 708 | Pla / Dumas / Derani | Glickenhaus 007 LMH | Glickenhaus Racing | | LMH | |
| 709 | Briscoe / Westbrook / Mailleux | Glickenhaus 007 LMH | Glickenhaus Racing | | LMH | |
| 777 | Hoshino / Fujii / Fagg | Aston Martin Vantage AMR | D'Station Racing | | GTE Am | |