Team | Nr | Rijder | Sponsor(s) | Races |
AFS Racing/Andretti Autosport | 26 | Charlie Kimball | Levemir Flexpen | |
27 | Martin Plowman | AFS / KEP Printing | |
Sam Schmidt Motorsports | 7 | Jean Karl Vernay | Lucas Slick Mist / Lucas Oil / CJ | |
11 | Pippa Mann | PippaMann.com / Loblaws | Reed niet in Mid-Ohio vanwege een verwonding aan de hand. |
49 | Philip Major | Nexage | |
77 | James Winslow | BSS / Bright Spot / Bright Side of the Road / Focal Point Lighting | Reed alleen in St. Petersburg t/m Long Beach, Watkins Glen, Toronto en Mid-Ohio. |
Wade Cunningham | Lucas Oil / BSS / Izod | Reed alleen in Indianapolis en Homestead. |
Alex Ellis | Jim Russell Racing Series | Reed alleen in Sonoma. |
Andersen Racing | 4 | Carmen Jordá | | Reed alleen in St. Petersburg t/m Long Beach, Toronto and Edmonton. |
Arie Luyendyk Jr. | Izod | Reed alleen in Indianapolis. |
Anders Krohn | LogiTrans Offshore Express | Reed alleen in Watkins Glen. |
Giancarlo Vilarinho | Allied Building Products | Reed alleen in Mid-Ohio en Sonoma. |
Sean Guthrie | Reed alleen in Homestead. |
5 | Joel Miller | Mockett / Allied Building Products | Reed alleen in Long Beach. |
Tõnis Kasemets | Flexovit / Allied Building Products | Reed alleen in Toronto. |
Bryan Herta Autosport | 28 | Stefan Wilson | Forsythe Solutions / Outback Steakhouse | Reed niet in Sonoma en Homestead. |
Joel Miller | | Reed alleen in Sonoma. |
29 | Sebastián Saavedra | William Rast | Verbrak het contract na de kwalificatie van Kentucky. |
Daniel Herrington | Reed alleen in Kentucky |
Dillon Battistini | William Rast / Forsythe Solutions | Reed alleen in Homestead. |
Team PBIR | 35 | Nic LeDuc | Palm Beach Indy Racing | Reed alleen in Barber. |
Tõnis Kasemets | Reed alleen in Long Beach. |
Dillon Battistini | Cicero's / Steven Bales Enterprises LLC | Reed alleen in Chicagoland, in samenwerking met Sam Schmidt Motorsports. |
37 | Niall Quinn | Palm Beach Indy Racing | Reed alleen in Barber en Long Beach. |
Team Moore Racing | 2 | James Hinchcliffe | Xtreme Coil Drilling | |
22 | Adrián Campos Jr. | |
Alliance Motorsports | 24 | Arie Luyendyk Jr. | Cincinnati Bell Technology Systems / Rotondo / Weirich | Reed alleen in Chicagoland, Kentucky, en Homestead. |
PDM Racing | 18 | Rodrigo Barbosa | Royal Spa | |
Walker Racing | 40 | Jonathan Summerton | Wasteco / Deans Knight Capital Management | Reed alleen in St. Peterburg. |
Dan Clarke | Reed vanaf Barber alle races. |
Davey Hamilton Racing | 32 | Brandon Wagner | Sleep Inn | Reed alleen op de Ovals. In samenwerking met Kingdom Racing. |
34 | Henry Clarke | | Reed alleen in Homestead. |
Genoa Racing O2 Racing Technology | 36 | David Martínez | Quamtel / DataJack / Racing For Mexico | Reed alleen in Mid Ohio en Sonoma. |
Daniel Herrington | Reed alleen in Homestead. |
HVM Racing | 6 | Junior Strous | Shell | Ging na de race van Left Long Beach weg. |
Cape Motorsports/ Wayne Taylor Racing | 10 | Gustavo Yacamán | Crepes & Waffles / Tuvacol | |
Team E | 17 | Jan Heylen | Zymot | Reed alleen in St. Petersburg. |
Jeff Simmons | Reed alleen in Indianapolis. |
Michael Crawford Motorsports | 8 | Juan Pablo Garcia | Freightliner | Reed alleen in Mid-Ohio en Sonoma. |