| Teams for 2015 Alert Today Florida 300 |
|---|
| Car | Team | Driver | Mfg |
|---|---|---|---|
| 1 | Jack Roush | Elliott Sadler |  |
| 01 | JD Motorsports | Landon Cassill |  |
| 2 | Richard Childress | Brian Scott | |
| 3 | Richard Childress | Ty Dillon | |
| 4 | JD Motorsports | Ross Chastain | |
| 6 | Jack Roush | Bubba Wallace | |
| 7 | JR Motorsports | Regan Smith | |
| 8 | Mark Smith | Blake Koch |  |
| 9 | JR Motorsports | Chase Elliott | |
| 10 | Mark Smith | Scott Lagasse, Jr. | |
| 13 | Derek White | Chris Cockrum | |
| 14 | Mark Smith | Cale Conley | |
| 16 | Jack Roush | Ryan Reed | |
| 18 | Joe Gibbs | Daniel Suarez | |
| 20 | Joe Gibbs | Erik Jones | |
| 22 | Roger Penske | Brad Keselowski | |
| 24 | James Whitener | Eric McClure | |
| 25 | Tony Townley | John Wes Townley | |
| 26 | James Whitener | Mike Wallace | |
| 28 | James Whitener | J.J. Yeley | |
| 29 | Robby Benton | Justin Marks | |
| 33 | Richard Childress | Austin Dillon | |
| 39 | RSS Racing | Ryan Sieg | |
| 40 | Derek White | Derek White |  |
| 42 | Harry Scott Jr | Kyle Larson | |
| 43 | Richard Petty Motorsports | Dakoda Armstrong | |
| 44 | Mark Smith | David Starr | |
| 51 | Jeremy Clements Racing | Jeremy Clements | |
| 52 | Jimmy Means | Joey Gase | |
| 54 | Joe Gibbs | Kyle Busch | |
| 55 | Viva Motorsports | Jeffrey Earnhardt | |
| 60 | Jack Roush | Chris Buescher | |
| 62 | Richard Childress | Brendan Gaughan | |
| 74 | Mike Harmon Racing | Mike Harmon | |
| 84 | Billy Boat | Chad Boat | |
| 88 | JR Motorsports | Dale Earnhardt, Jr. | |
| 90 | King Autosport | Mario Gosselin | |
| 92 | King Autosport | Dexter Bean | |
| 97 | Obaika Racing | Josh Reaume | |
| 98 | Biagi DenBeste Racing | Aric Almirola | |
