1988 IndyCar season Drivers and constructors Drivers and constructors

| Team | Chassis | Engine | Tires | Drivers |
|---|---|---|---|---|
| Leader Card Racing | Lola | Cosworth | G | Dominic Dobson |
| Dobson Motorsports | Lola | Cosworth | G | Dominic Dobson |
| Dale Coyne Racing | March | Chevrolet | G | Dale Coyne |
| Dale Coyne Racing | March | Chevrolet | G | Dominic Dobson |
| Los Angeles Drywall | March | Cosworth | G | Dick Ferguson |
| Los Angeles Drywall | March | Cosworth | G | Ed Pimm |
| KargoStopper | Lola | Cosworth | G | Darin Brassfield |
| BDR Racing | March | Cosworth | G | Steve Bren |
| Andale Racing | March | Cosworth | G | Bernard Jourdain |
| U.S. Engineering | March | Cosworth | G | Phil Krueger |
| Kent Baker Racing | March | Cosworth | G | Phil Krueger |
| Scheid Tire Centers | March | Cosworth | G | Gary Bettenhausen |
| Calumet Farms | March | Chevrolet | G | George Snider |
| GF Racing | March | Cosworth | G | Giupponi Franca |