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| AAW Racing Team | — | — |
| Ace Garage Rotherham | — | — |
| Adolf Brudes | — | — |
| Advance Muffler | — | — |
| A.E. Dean | — | — |
| AFM | — | — |
| AGS | — | — |
| AHM Bryde | — | — |
| Ahrens Racing Team | — | — |
| Alan Brown Equipe | — | — |
| Alberto Uria | — | — |
| Albilad-Saudia Racing Team | — | — |
| Albilad-Williams Racing Team | — | — |
| Alfa Romeo F1 Team Orlen | — | — |
| Alfa Romeo F1 Team Stake | — | — |
| Alfa Romeo Racing Orlen | — | — |
| Alfa Romeo Racing | — | — |
| Alfa Romeo Sauber F1 Team | — | — |
| Alfa Romeo SpA | — | — |
| Alfred Dattner | — | — |
| Allied Polymer Group | — | — |
| Alpine F1 Team | — | — |
| Ambrosio Shadow Racing | — | — |
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