| Entrant | Chassis | Engine | No. | Drivers | Rounds | ||
|---|---|---|---|---|---|---|---|
 | Cadillac Racing | Cadillac V-LMDH | Cadillac LMC55R 5.5 L V8 | 01 02 |     | Sebastien Bourdais Scott Dixon Renger van der Zande Earl Bamber Alex Lynn Richard Westbrook | 1 1 1 1 1 1 |
| JDC-Miller MotorSports | Porsche 963 | Porsche 4.6 L Turbo V8 | 5 | TBA TBA TBA | TBA TBA TBA |
|
 | Porsche Penske Motorsport | Porsche 963 | Porsche 4.6 L Turbo V8 | 6 7 |    | Dane Cameron Mathieu Jaminet Nick Tandy Matt Campbell Michael Christensen Felipe Nasr | 1 1 1 1 1 1 |
| Wayne Taylor Racing with Andretti Autosport | Acura ARX-06 | Acura AR24e 2.4 L Turbo V6 | 10 |   | Filipe Albuquerque Louis Deletraz Brendon Hartley | 1 1 1 |
| BMW M Team RLL | BMW M Hybrid V8 | BMW P66/3 4.0 L Turbo V8 | 24 |   | Philipp Eng Augusto Farfus Colton Herta Marco Wittmann Connor De Phillippi Colton Herta Sheldon van der Linde Nick Yelloly | 1 1 1 1 1 1 1 1 |
| Whelen Engineering Racing | Cadillac V-LMDh | Cadillac LMC55R 5.5 L V8 | 31 | | Jack Aitken Pipo Derani Alexander Sims | 1 1 1 |
| Meyer Shank Racing with Curb-Agajanian | Acura ARX-06 | Acura AR24e 2.4 L Turbo V6 | 60 | | Tom Blomqvist Colin Braun Helio Castroneves Simon Pagenaud | 1 1 1 1 |
| Proton Competition | Porsche 963 | Porsche 4.6 L Turbo V8 | TBA | TBA TBA TBA | TBA TBA TBA |
2023 IMSA GTP Team/Driver Line-up
© 2023 Motorsport Media Services Ltd
