- Walt Ader, Emil Andres, Bill Cantrell, Joie Chitwood, Myron Fohr & Bayliss Levrett (all 1950)
- Walt Brown, Cecil Green, Mack Hellings, Mauri Rose & Lee Wallard (all 1950–1951)
- Jimmy Davies & Walt Faulkner (1950–1951, 1953–1955)
- Duke Dinsmore (1950–1951, 1953, 1956)
- Henry Banks, George Connor, Johnny McDowell & Bill Schindler (all 1950–1952)
- Jack McGrath (1950–1955)
- Duane Carter (1950–1955, 1959–1960)
- Fred Agabashian & Sam Hanks (1950–1957)
- Johnnie Parsons (1950–1958)
- Troy Ruttman (1950–1958, 1960)
- Tony Bettenhausen, Paul Russo & Harry Schell (all 1950–1960)
- Spider Webb (1950, 1952–1954)
- Gene Hartley & Jim Rathmann (1950, 1952–1960)
- Bill Holland & Jackie Holmes (1950, 1953)
- Jerry Hoyt (1950, 1953–1955)
- Pat Flaherty (1950, 1953–1956, 1959)
- Jimmy Jackson (1950, 1954)
- Dick Rathmann (1950, 1956, 1958–1960)
- Carl Forberg & Bill Mackey (1951)
- Bobby Ball, Joe James & Chet Miller (1951–1952)
- Cliff Griffith (1951–1952, 1956)
- Duke Nalon (1951–1953)
- Manny Ayulo (1951–1954)
- Chuck Stevenson (1951–1954, 1960)
- Bill Vukovich (1951–1955)
- Andy Linden (1951–1957)
- Rodger Ward (1951–1960, 1963)
- Carl Scarborough (1951, 1953)
- Mike Nazaruk (1951, 1953–1954)
- Gene Force (1951, 1960)
- Robert O'Brien & Jim Rigsby (1952)
- Bob Scott (1952–1954)
- Art Cross (1952–1955)
- Bob Sweikert (1952–1956)
- Jimmy Bryan & Eddie Johnson (1952–1960)
- George Fonder (1952, 1954)
- Jimmy Reece (1952, 1954–1958)
- Johnny Mantz (1953)
- Ernie McCoy & Fred Wacker (1953–1954)
- Marshall Teague (1953–1954, 1957)
- Cal Niday (1953–1955)
- Jimmy Daywalt (1953–1957, 1959)
- Don Freeland & Johnny Thomson (1953–1960)
- John Fitch (1953, 1955)
- Frank Armi, Larry Crockett & Len Duncan (all 1954)
- Bill Homeier (1954–1955, 1960)
- Ed Elisian & Pat O'Connor (1954–1958)
- Keith Andrews (1955–1956)
- Ray Crawford (1955–1956, 1959)
- Al Herman (1955–1957, 1959–1960)
- Eddie Russo (1955–1957, 1960)
- Al Keller (1955–1959)
- Johnny Boyd (1955–1960)
- Chuck Weyant (1955, 1957–1959)
- Shorty Templeman (1955, 1958, 1960)
- Johnnie Tolan (1956–1958)
- Jack Turner (1956–1959)
- Bob Christie & Bob Veith (1956–1960)
- Billy Garrett (1956, 1958)
- Don Edmunds, Elmer George & Herbert MacKay-Fraser (all 1957)
- Bill Cheesbourg & Mike Magill (1957–1959)
- Eddie Sachs (1957–1960)
- Masten Gregory (1957–1963, 1965)
- George Amick, Art Bisch, Bruce Kessler & Jerry Unser Jr. (all 1958)
- Jud Larson & Carroll Shelby (1958–1959)
- A. J. Foyt, Paul Goldsmith & Len Sutton (1958–1960)
- Phil Hill (1958–1964, 1966)
- Dempsey Wilson (1958, 1960)
- Chuck Arnold, Harry Blanchard, Phil Cade, George Constantine & Bob Said (all 1959)
- Red Amick, Don Branson, Bobby Grim & Jim McWithey (all 1959–1960)
- Pete Lovely (1959–1960, 1969–1971)
- Dan Gurney (1959–1968, 1970)
- Chuck Daigh, Bob Drake, Fred Gamble, Jim Hurtubise, Lance Reventlow, Alfonso Thiele, Bud Tingelstad & Wayne Weiler (all 1960)
- Lloyd Ruby (1960–1961)
- Jim Hall (1960–1963)
- Richie Ginther (1960–1967)
- Roger Penske (1961–1962)
- Hap Sharp (1961–1964)
- Walt Hansgen (1961, 1964)
- Jay Chamberlain, Timmy Mayer & Rob Schroeder (all 1962)
- Tony Settember (1962–1963)
- Frank Dochnal & Thomas Monarch (1963)
- Ronnie Bucknum (1964–1966)
- Peter Revson (1964, 1971–1974)
- Bob Bondurant (1965–1966)
- Mike Fisher & Tom Jones (1967)
- Bobby Unser (1968)
- Mario Andretti (1968–1972, 1974–1982)
- Gus Hutchison (1970)
- Skip Barber & Sam Posey (1971–1972)
- Mark Donohue (1971, 1974–1975)
- George Follmer (1973)
- Brett Lunger (1975–1978)
- Danny Ongais (1977–1978)
- Bobby Rahal (1978)
- Eddie Cheever (1978, 1980–1989)
- Kevin Cogan (1980–1981)
- Danny Sullivan (1983)
- Michael Andretti (1993)
- Scott Speed (2006–2007)
- Alexander Rossi (2015)
- Logan Sargeant (2023–2024)
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American
