| Teams for 2025 United Rentals 300 |
|---|
| Car | Team | Driver | Mfg |
|---|---|---|---|
| 00 | Gene Haas | Sheldon Creed |  |
| 1 | JR Motorsports | Carson Kvapil |  |
| 2 | Richard Childress | Jesse Love | |
| 4 | Tommy Joe Martins | Parker Retzlaff | |
| 5 | Chris Our | Kris Wright | |
| 7 | JR Motorsports | Justin Allgaier | |
| 07 | SS Green Light Racing | Patrick Emerling | |
| 8 | JR Motorsports | Sammy Smith | |
| 10 | Kaulig Racing | Daniel Dye | |
| 11 | Kaulig Racing | Josh Williams | |
| 14 | SS Green Light Racing | Garrett Smithley | |
| 16 | Kaulig Racing | Christian Eckes | |
| 18 | Joe Gibbs | William Sawalich |  |
| 19 | Joe Gibbs | Justin Bonsignore | |
| 20 | Joe Gibbs | Brandon Jones | |
| 21 | Richard Childress | Austin Hill | |
| 24 | Sam Hunt | Ryan Truex | |
| 25 | AM Racing | Harrison Burton | |
| 26 | Sam Hunt | Dean Thompson | |
| 27 | Jordan Anderson Racing | Jeb Burton | |
| 28 | RSS Racing | Kyle Sieg | |
| 31 | Jordan Anderson Racing | Blaine Perkins | |
| 32 | Jordan Anderson Racing | Jordan Anderson | |
| 35 | Joey Gase | Greg Van Alst | |
| 39 | RSS Racing | Ryan Sieg | |
| 41 | Gene Haas | Sam Mayer | |
| 42 | Randy Young | Anthony Alfredo | |
| 44 | Tommy Joe Martins | Brennan Poole | |
| 45 | Tommy Joe Martins | Caesar Bacarella | |
| 48 | Scott Borchetta | Nick Sanchez | |
| 51 | Jeremy Clements Racing | Jeremy Clements | |
| 53 | Joey Gase | Joey Gase | |
| 54 | Joe Gibbs | Taylor Gray | |
| 70 | Cope Family Racing | Leland Honeyman | |
| 71 | DGM Racing | Ryan Ellis | |
| 88 | JR Motorsports | Connor Zilisch | |
| 91 | DGM Racing | Josh Bilicki | |
| 99 | Viking Motorsports | Matt DiBenedetto | |
