| Pos | Constructor | Wins | Pts |
|---|---|---|---|
| 1 | Ferrari Italy | 6 | 80.5 |
| 2 | Maserati Italy | 2 | 72 |
| 3 | Connaught United Kingdom | 0 | 9 |
| 4 | Kurtis Kraft United States Of America | 0 | 9 |
| 5 | Watson United States Of America | 1 | 8 |
| 6 | Phillips United States Of America | 0 | 4 |
| 7 | Vanwall United Kingdom | 0 | 3 |
| 8 | Kuzma United States Of America | 0 | 3 |
| 9 | Gordini France | 0 | 2 |
| 10 | Stevens United States Of America | 0 | 0 |
| 11 | Emeryson United Kingdom | 0 | 0 |
| 12 | BRM United Kingdom | 0 | 0 |
| 13 | Cooper United Kingdom | 0 | 0 |
| 14 | Lesovsky United States Of America | 0 | 0 |
| 15 | Bugatti France | 0 | 0 |
