| Entrant | Chassis | Engine | No. | Drivers | Rounds | ||
|---|---|---|---|---|---|---|---|
 | Cadillac Racing | Cadillac V-LMDH | Cadillac LMC55R 5.5 L V8 | 01 |    | Sebastien Bourdais Renger van der Zande Scott Dixon Alex Palou | Full Season Full Season Endurance Cup Daytona |
 | Proton Competition | Porsche 963 | Porsche 4.6 L Turbo V8 | 5 |    | Gianmaria Bruni Neel Jani Romain Dumas Alessio Picariello | Full Season Full Season Endurance Cup Endurance Cup |
| Porsche Penske Motorsport | Porsche 963 | Porsche 4.6 L Turbo V8 | 6 7 |    | Mathieu Jaminet Nick Tandy Kevin Estre Laurens Vanthoor Felipe Nasr Dane Cameron Matt Campbell Josef Newgarden | Full Season Full Season Endurance Cup Endurance Cup Full Season Full Season Endurance Cup Endurance Cup |
| Wayne Taylor Racing with Andretti Autosport | Acura ARX-06 | Acura AR24e 2.4 L Turbo V6 | 10 40 |    | Filipe Albuquerque Ricky Taylor Brendon Hartley Marcus Ericsson Jordan Taylor Louis Deletraz Colton Herta Jenson Button | Full Season Full Season Endurance Cup Daytona Full Season Full Season Endurance Cup Daytona |
| BMW M Team RLL | BMW M Hybrid V8 | BMW P66/3 4.0 L Turbo V8 | 24 25 |   | Philipp Eng Jesse Krohn Augusto Farfus Dries Vanthoor Connor De Phillippi Nick Yelloly Maxime Martin Rene Rast | Full Season Full Season Endurance Cup Daytona Full Season Full Season Endurance Cup Daytona |
| Whelen Engineering Racing | Cadillac V-LMDh | Cadillac LMC55R 5.5 L V8 | 31 | | Jack Aitken Pipo Derani Tom Blomqvist | Full Season Full Season Endurance Cup |
| Lamborghini Iron Lynx | Lamborghini SC63 | Lamborghini 3.8 L Twin Turbo V8 | 63 | | Romain Grosjean Andrea Caldarelli Matteo Cairoli | Endurance Cup* Endurance Cup* Endurance Cup* *Excluding Daytona |
| JDC-Miller MotorSports | Porsche 963 | Porsche 4.6 L Turbo V8 | 85 | | Richard Westbrook Tijmen van der Helm Phil Hanson Ben Keating | Full Season Full Season Endurance Cup Daytona |
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