| Teams 2020 Cook Out Southern 500 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 0 | StarCom Racing | Quin Houff | Chevrolet |
| 1 | Chip Ganassi Racing | Kurt Busch | Chevrolet |
| 2 | Team Penske | Brad Keselowski | Ford |
| 3 | Richard Childress Racing | Austin Dillon | Chevrolet |
| 4 | Stewart Haas Racing | Kevin Harvick | Ford |
| 6 | Roush Fenway Racing | Ryan Newman | Ford |
| 7 | Tommy Baldwin Racing | Josh Bilicki | Chevrolet |
| 8 | Richard Childress Racing | Tyler Reddick | Chevrolet |
| 9 | Hendrick Motorsports | Chase Elliott | Chevrolet |
| 10 | Stewart Haas Racing | Aric Almirola | Ford |
| 11 | Joe Gibbs Racing | Denny Hamlin | Toyota |
| 12 | Team Penske | Ryan Blaney | Ford |
| 13 | Germain Racing | Ty Dillon | Chevrolet |
| 14 | Stewart Haas Racing | Clint Bowyer | Ford |
| 15 | Rick Ware Racing | Brennan Poole | Chevrolet |
| 17 | Roush Fenway Racing | Chris Buescher | Ford |
| 18 | Joe Gibbs Racing | Kyle Busch | Toyota |
| 19 | Joe Gibbs Racing | Martin Truex, Jr. | Toyota |
| 20 | Joe Gibbs Racing | Erik Jones | Toyota |
| 21 | Wood Brothers Racing | Matt DiBenedetto | Ford |
| 22 | Team Penske | Joey Logano | Ford |
| 24 | Hendrick Motorsports | William Byron | Chevrolet |
| 27 | Rick Ware Racing | J.J. Yeley | Ford |
| 32 | Go Green Racing | Corey LaJoie | Ford |
| 34 | Front Row Motorsports | Michael McDowell | Ford |
| 37 | JTG Daughtery Racing | Ryan Preece | Chevrolet |
| 38 | Front Row Motorsports | John H. Nemechek | Ford |
| 41 | Stewart Haas Racing | Cole Custer | Ford |
| 42 | Chip Ganassi Racing | Matt Kenseth | Chevrolet |
| 43 | Richard Petty Motorsports | Bubba Wallace | Chevrolet |
| 47 | JTG Daughtery Racing | Ricky Stenhouse, Jr. | Chevrolet |
| 48 | Hendrick Motorsports | Jimmie Johnson | Chevrolet |
| 51 | Rick Ware Racing | Joey Gase | Ford |
| 53 | Rick Ware Racing | James Davison | Chevrolet |
| 66 | MBM Motorsports / Garage 66 | Timmy Hill | Toyota |
| 77 | Spire Motorsports | Ross Chastain | Chevrolet |
| 88 | Hendrick Motorsports | Alex Bowman | Chevrolet |
| 95 | Leavine Family Racing | Christopher Bell | Toyota |
| 96 | Gaunt Brothers Racing | Daniel Suarez | Toyota |