| Pos | Constructor | Wins | Pts |
|---|---|---|---|
| 1 | Ferrari Italy | 3 | 86 |
| 2 | Alfa Romeo Italy | 5 | 75 |
| 3 | Kurtis Kraft United States Of America | 1 | 19 |
| 4 | Talbot-Lago France | 0 | 5 |
| 5 | Sherman United States Of America | 0 | 3 |
| 6 | Schroeder United States Of America | 0 | 2 |
| 7 | BRM United Kingdom | 0 | 2 |
| 8 | Kuzma United States Of America | 0 | 0 |
| 9 | Lesovsky United States Of America | 0 | 0 |
| 10 | Marchese United States Of America | 0 | 0 |
| 11 | Maserati Italy | 0 | 0 |
| 12 | Moore United States Of America | 0 | 0 |
| 13 | O.S.C.A. Italy | 0 | 0 |
| 14 | Pawl United States Of America | 0 | 0 |
| 15 | Simca-Gordini France | 0 | 0 |
| 16 | Trevis United States Of America | 0 | 0 |
| 17 | Veritas Germany | 0 | 0 |
| 18 | Watson United States Of America | 0 | 0 |
| 19 | Alta United Kingdom | 0 | 0 |
| 20 | Bromme United States Of America | 0 | 0 |
| 21 | Deidt United States Of America | 0 | 0 |
| 22 | ERA United Kingdom | 0 | 0 |
| 23 | Hall United States Of America | 0 | 0 |
| 24 | HWM United Kingdom | 0 | 0 |
