Hide car manufacturers with less than 10 entries
Hide car manufacturers who only participated in Indy 500
Ignore non-championship races
| No | Car Manufacturer | Races | Active Years |
|---|
| 259 | RA3 (Non-champ only) | 1 |
1960 |
| 260 | RA5 (Non-champ only) | 2 |
1960, 1962 |
| 261 |  Racing Bulls | 5 |
2025 |
| 262 |  Racing Point | 38 |
2019–2020 |
| 263 |  Rae (Indy only) | 1 |
1950 |
| 264 |  Ralt (Non-champ only) | 29 |
1976–1978, 1983 |
| 265 | RAM | 44 |
1983–1985 |
| 266 | RB | 24 |
2024 |
| 267 | RE (Non-champ only) | 2 |
1964, 1966 |
| 268 |  Rebaque | 3 |
1979 |
| 269 | Rebrab (Non-champ only) | 1 |
1952 |
| 270 |  Red Bull | 399 |
2005–2025 |
| 271 | Regal (Non-champ only) | 1 |
1949 |
| 272 |  Reif | 8 |
1952–1953 |
| 273 |  Renault | 403 |
1977–1985, 2002–2011, 2016–2020 |
| 274 | Revis (Non-champ only) | 2 |
1956 |
| 275 | RG (Non-champ only) | 2 |
1952, 1954 |
| 276 | Rial | 32 |
1988–1989 |
| 277 | Ricardian (Non-champ only) | 1 |
1961 |
| 278 | Riley (Non-champ only) | 13 |
1945–1947, 1949–1950 |
| 279 | RM (Non-champ only) | 2 |
1947 |
| 280 | Rover (Non-champ only) | 5 |
1952–1954 |
| 281 | RRA (Non-champ only) | 14 |
1949–1954, 1957 |
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