| # | Piloto (EST/PAÍS) | Pacote/ Equipe | Classe |
| 1 | Josef Newgarden (EUA) | Dallara/Chevrolet
Team Penske | F-Indy |
| 4 | Matheus "Matt" Leist (BRA) | Dallara/Chevrolet
A.J. Foyt Enterprises | F-Indy R |
| 5 | James Hinchcliffe (CAN) | Dallara/Honda
Schmidt Peterson Motorsports | F-Indy |
| 6 | Robert Wickens (CAN) | Dallara/Honda
Schmidt Peterson Motorsports | F-Indy R |
| 9 | Scott Dixon (NZL) | Dallara/Honda
Chip Ganassi Racing | F-Indy |
| 10 | Ed Jones (EUA) | Dallara/Honda
Chip Ganassi Racing | F-Indy |
| 12 | William "Will" Power (AUS) | Dallara/Chevrolet
Team Penske | F-Indy |
| 14 | Antoine Rizkallah "Tony" Kanaan Fo. (BRA) | Dallara/Chevrolet
A.J. Foyt Enterprises | F-Indy |
| 15 | Graham Rahal (EUA) | Dallara/Honda
Rahal Letterman Lanigan Racing | F-Indy |
| 18 | Sebastien Bourdais (FRA) | Dallara/Honda
Dale Coyne Racing/Vasser-Sullivan | F-Indy |
| 19 | Zachary Claman De Melo (CAN) | Dallara/Honda
Dale Coyne Racing | F-Indy R |
| 20 | Jordan King (ING) | Dallara/Chevrolet
Ed Carpenter Racing | F-Indy R |
| 21 | Spencer Pigot (EUA) | Dallara/Chevrolet
Ed Carpenter Racing | F-Indy |
| 22 | Simon Pagenaud (FRA) | Dallara/Chevrolet
Team Penske | F-Indy |
| 23 | Charlie Kimball (EUA) | Dallara/Chevrolet
Carlin | F-Indy |
| 26 | Zachary "Zach" Veach (EUA) | Dallara/Honda
Andretti Autosport | F-Indy R |
| 27 | Alexander Rossi (EUA) | Dallara/Honda
Andretti Autosport | F-Indy |
| 28 | Ryan Hunter-Reay (EUA) | Dallara/Honda
Andretti Autosport | F-Indy |
| 30 | Takuma Sato (JAP) | Dallara/Honda
Rahal Letterman Lanigan Racing | F-Indy |
| 32 | Rene Binder (AUT) | Dallara/Chevrolet
Juncos Racing | F-Indy R |
| 59 | Max Chilton (ING) | Dallara/Chevrolet
Carlin | F-Indy |
| 60 | Jack Harvey (ING) | Dallara/Honda
Michael Shank Racing/Schmidt Peterson | F-Indy R |
| 88 | Gabriel "Gabby" Chaves (COL) | Dallara/Chevrolet
Harding Racing | F-Indy |
| 98 | Marco Andretti (EUA) | Dallara/Honda
Andretti Herta Autosport/Curb-Agajanian | F-Indy |
