Constructor	Drivers
BRM	4
Connaught Alta	2
Cooper Bristol	1
Cooper Climax	7
Dunn Offenhauser	1
Epperly Offenhauser	2
Ferrari	10
Kurtis Kraft Novi	2
Kurtis Kraft Offenhauser	19
Kuzma Offenhauser	5
Lanica Ferrari	8
Lesovsky Offenhauser	2
Maserati	17
Phillips Offenhauser	1
Porsche (F2)	3
Porsche (F2)	3
Vanwall	4
Watson Offenhauser	1