Adams - Automobile Shippers Adams Quarter Horse - Agajanian - Advance Muffler Special - Carl Anderson - Ansted Rotary - Frank Arciero - Arco Corporation - Aristo Blue - Auto Accessories Company - Automobile Shippers
Bardahl-Ferrari - Bursac Bardahl-Ferrari - Bardahl Special - Francis Bardazon - Joe Bardza - Murrell Belanger - Belond - Bignotti-Bowes - Joe Binter - Blakely Oil - Blue Crown Spark Plug - Bowes Seal Fast - Ray T. Brady - Braund -Bruce Bromme - Brown Motor Company - Bryant Heating - William Burns - Milan Bursac
Caccia Motors - Cummins Caccia Motors - California Speed Shop - Paul Cantarano - Ray Carter - Dough Caruthers - Ernie R. Casale - Eugene A. Casaroll - Central Excavating - Harry Allen Chapman - Chenowth-San Diego Steel - Chesty - Marion Chinetti - Chiropractic Special - Bob Christie - Christy - Cincinnati Race Cars - City of Daytona Beach - City of Detroit - City of Glendale - City of Indianapolis - City of Memphis - Pat Clancy - Coast Grain - Commercial Motor Freight - Calvin Connell - Cop-Sil-Loy - Cornis engineering - Cott Motor - Ray Crawford - Cummins Engine
D-A Lubricants - Dunn Engineering D-A Lubricants - Dayton Steel - Dean van Lines - Deck Manufacturing - Norman Demler - Jimmy Derrico - Detroiter Mobile Homes - Clyde Dillon - Leo Dobry-Esmeralda - Duke Donaldson - Dowgard Special - Drewrys Special - Harry Duncan - Dunn Engineering
Eldorado - Estes Scuderia Eldorado - Elgin Piston Pin - Lee Elkins - Ellen Atomic - Engle-Stanko - Ensley & Murphy – Jack Ensley-City of Indianapolis - Esmeralda – Bob Estes
Faas - Fullerton-Massaglia Giuseppe Farina - Leonard Anthony Faas - Fadely-Anderson - Federal Automotive Associate - Ferrari Special - Scuderia Ferrari - Filter Queen - William P. Forbes - Leroy E. Foutch - Fuel Injection - Hart Fullerton_Massaglia
Gdula - Greenman-Casale Edward Gdula - Carl Gehlhausen - Fred Gerhardt - Lee Glessner - Gub Glover - Go-Kart - Granatelli_Grancor - Grant Piston Ring - Greenman-Casale
HBT Corporation - Joe Hunt HBT Corporation - Karl Hall - Norman Hall_Ridgewood Builders - Hancock Dome - Hardwood Door - Helin Tackle - George Heller - Helse - Hinkle - Hoosier Race Team - Hoover Motor Express - Lindsey Hopkins - Wayne Horning - George Hoster - Hoyt Machine - Joe Hunt
Jewell - Jones&Maley Larry Jewell - Hadley H. Johnson - Johnson & Herbert - Bob Jones - Jones & Maley Cars
Kalamazoo Sports - Kurtis Kraft Kalamazoo Sports - Howard Keck - Kelso Auto Dynamic - Ken-Paul - Kennedy Tank - King O’Lawn - Koehnle_Motor Trend – Thomas Kupiec - Kurtis-Kraft
Lammers - Lutes_Bardazon Henry Lammers - Joe Langley_Troy Oil - Las Vegas Club - Art Lathrop - Leader Card - Leitenberger - Dan Levine - Lincoln-Mercury - John Lorenz_Pioneer Auto Repair - Lubri-Loy - Lutes Truck Parts_Bardazon
Malamud B&M - Motor Trend Malamud_B&M - Emmett Malloy - Charles Marant - Jean Marcenac - Carl Marchese - Milt Marion - Ralph Marley_Drewrys - Marquette Tool - Martin Brothers - Maserati Race Cars - Officine Alfieri Maserati - Massaglia Hotels - Johnny Mauro - John McDaniel - Cecil McDonald - Roy McKay - Robert McManus - McNamara - Meguiar's Mirror Glaze - Mel-Rae - Mercury Special - Merkler - Metal-Cal - Henry Meyer - Merz Engineering - Micro-Nut – Midwest Manufacturing - Miracle Power - Ralph Miller_Vulcan Tool - Mobiloil - Mobilgas - Mohawk Chieftain - Lou Moore - R.E. Moore - Morgan Engineering - Ludson Morris - Motor Racers - Motor Trend
Nichels - Novi Ray Nichels – North Electric – Novi Racing
Page - Pusilo Ross Page - Richard Palmer - Bessie Lee Paoli - Parks Motor Company - Pennzoil Special - Pioneer Auto Repair - Pipe Fitters - Ollie Prather_Go-Kart - Charles Pritchard - John Marco Pusilo
Racing Associates - Russo_Nichels Racing Associates - Radsco Battery - Lou Rassey - Walter Redmer - Ridgewood Builders - Jim Robbins - Chapman S. Root - Ebb Rose - Ross-Babcock Traveler - Rotary Engineering - Rouge Motors - Rounds Engineering - Ernest L. Ruiz - Russo_Nichels
Sabourin - Szalai Dr. Ray Sabourin - Safety Auto Glass - Safety Seal - Pete Salemi_Central Excavating - George Salih - Sampson Manufacturing - Tom Sarafoff - Schildmeier Seal - Peter Schmidt - Sclavi-Amos - Joseph Scopa - Albert Scully_Ellen Atomic - Joe Shaheen – Shannon Brothers - Shouse Motors - Eddie Shreve - Simoniz Special - Earl Slick - Leonard Smith - Fred Sommer - Bob Sorenson - Speed Enterprise - Speed Partners - Miklos Sperling - Springfield Welding - S-R Racing - Edgar Stone - Storey_Ricketts - Walter Strader - Sid Street Motors - Sumar Racing_Chapman S. Root - Szalai
Thompson - Turner Thompson Industries - Thorne Engineering - Fred Tomshe - Trainor Auto Parts - Travelon Trailer - Walter Travers - Sam Traylor - Trio Brass Foundry - Troy Oil - Tuffanelli_Derrico - Harry Turner