Hide entrants with less than 10 entries
Hide entrants who only participated in Indy 500
Include non-championship races
| No | Entrant | Races | Active Years |
|---|
| 727 | T.A.S.O. Mathieson | 1 |
1950 |
| 728 | T.W. & W.T. Martin (Indy only) | 2 |
1954–1955 |
| 729 | TAG Williams Team | 39 |
1981–1983 |
| 730 | Taylor-Crawley Racing Team | 2 |
1959–1960 |
| 731 | Team 7Up Jordan | 16 |
1991 |
| 732 | Team ATS | 76 |
1980–1984 |
| 733 | Team Canada Formula 1 Racing | 1 |
1974 |
| 734 | Team Chamaco Collect | 5 |
1966 |
| 735 | Team Eifelland Caravans | 8 |
1972 |
| 736 | Team El Charro AGS | 16 |
1987 |
| 737 | Team Ensign | 48 |
1973–1974, 1976, 1979 |
| 738 | Team Essex Lotus | 19 |
1980–1981 |
| 739 | Team Gunston | 7 |
1968–1972, 1974–1975 |
| 740 | Team Haas (USA) Ltd | 20 |
1985–1986 |
| 741 | Team Harper-Token Racing | 2 |
1974 |
| 742 | Team Lawson | 1 |
1969 |
| 743 | Team Lotus | 175 |
1958–1968, 1991–1994, 2011 |
| 744 | Team McLaren Mercedes | 25 |
2005–2006 |
| 745 | Team Merzario | 38 |
1977–1979 |
| 746 | Team Motul BRM | 15 |
1974 |
| 747 | Team Norev Racing/BS Fabrications | 9 |
1976 |
| 748 | Team P.R. Reilly | 1 |
1976 |
| 749 | Team Pierre Robert | 1 |
1973 |
| 750 | Team Pretoria | 1 |
1968 |
| 751 | Team Rebaque | 30 |
1978–1979 |
| 752 | Team Rothmans International | 16 |
1977 |
| 753 | Team Surtees | 68 |
1970–1978 |
| 754 | Team Tissot Ensign | 16 |
1978 |
| 755 | Team Tissot Ensign with Castrol | 17 |
1977 |
| 756 | Team Tyrrell | 21 |
1979, 1982 |
| 757 | Team Williams Motul | 12 |
1972 |
| 758 | Ted Lanfear | 2 |
1963, 1965 |
| 759 | Telefonica Minardi Fondmetal | 17 |
2000 |
| 760 | Temple Buell | 3 |
1958 |
| 761 | TGR Haas F1 Team | 7 |
2026 |
| 762 | Theo Helfrich | 2 |
1952–1953 |
| 763 | Theodore Racing | 3 |
1976, 1978 |
| 764 | Theodore Racing Hong Kong | 17 |
1977–1978 |
| 765 | Theodore Racing Team | 44 |
1981–1983 |
| 766 | Theodore Shadow | 2 |
1980 |
| 767 | Tim Parnell | 6 |
1961, 1963 |
| 768 | Token Racing | 2 |
1974 |
| 769 | Toleman Group Motorsport | 40 |
1982, 1984–1985 |
| 770 | Tom Jones | 1 |
1967 |
| 771 | Tom Sarafoff (Indy only) | 1 |
1952 |
| 772 | Tom Wheatcroft Racing | 1 |
1970 |
| 773 | Toni Ulmen | 2 |
1952 |
| 774 | Tony Crook | 2 |
1952–1953 |
| 775 | Tony Gaze | 4 |
1952 |
| 776 | Tony Marsh | 4 |
1958, 1961 |
| 777 | Total Jordan Peugeot | 31 |
1995–1996 |
| 778 | Tourtel Larrousse F1 | 16 |
1994 |
| 779 | Trevor Blokdyk | 1 |
1965 |
| 780 | Trojan Tauranac Racing | 8 |
1974 |
| 781 | Tyrrell | 16 |
1994 |
| 782 | Tyrrell Racing Organisation | 122 |
1970, 1984–1985, 1988–1990, 1992–1993 |
| 783 | Tyrrell Racing Team | 15 |
1981 |
| 784 | Tyrrell Yamaha | 16 |
1996 |
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