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 |
|---|
| 34 | Baird (Non-champ only) | 3 |
1951–1952 |
| 35 | Balsa | 1 |
1952 |
| 36 |  BAR | 118 |
1999–2005 |
| 37 | Barton (Non-champ only) | 1 |
1978 |
| 38 | BBM (Non-champ only) | 1 |
1961 |
| 39 | Beart-Rodger (Non-champ only) | 3 |
1956 |
| 40 | Beattie (Non-champ only) | 1 |
1970 |
| 41 | Begg (Non-champ only) | 1 |
1973 |
| 42 |  Behra-Porsche | 5 |
1959–1960 |
| 43 |  Bellasi | 7 |
1970–1971 |
| 44 | Benetton | 260 |
1986–2001 |
| 45 | Berkshire (Non-champ only) | 1 |
1955 |
| 46 | BJS (Non-champ only) | 1 |
1952 |
| 47 | BKL Lotus (Non-champ only) | 4 |
1963–1964 |
| 48 | BL (Non-champ only) | 1 |
1953 |
| 49 |  BMW | 117 |
1946–1947, 1950–1954, 2006–2009 |
| 50 | BNC (Non-champ only) | 2 |
1945, 1947 |
| 51 | Boro | 8 |
1976–1977 |
| 52 | Boxer (Non-champ only) | 13 |
1976–1978 |
| 53 | Brabham | 589 |
1962–1987, 1989–1992 |
| 54 | Brawn | 17 |
2009 |
| 55 | BRM | 339 |
1950–1953, 1955–1978, 1980, 1982–1983 |
| 56 |  Bromme (Indy only) | 4 |
1951–1954 |
| 57 | BRP | 22 |
1963–1964, 1966 |
| 58 | Bugatti | 34 |
1945–1950, 1956 |
| 59 | Buick (Non-champ only) | 3 |
1949, 1952–1953 |
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