| Name | Country | Years | Races | Wins | Championships |
|---|---|---|---|---|---|
| T.A.S.O. Mathieson | 1950 | 1 | 0 | 0 | |
| Taylor-Crawley Racing Team | 1959 | 1 | 0 | 0 | |
| Team Canada F1 Racing | Canada | 1974 | 1 | 0 | 0 |
| Team Chamaco Collect | 1966 | 5 | 0 | 0 | |
| Team Gunston | 1968-1972,1974-1975 | 7 | 0 | 0 | |
| Team Haas | United States | 1985-1986 | 19 | 0 | 0 |
| Team Lawson | 1969 | 1 | 0 | 0 | |
| Team Lotus | Great Britain | 1958-1994 | 473 | 74 | 7 |
| Team Pretoria | 1968 | 1 | 0 | 0 | |
| Tecno | Italy | 1972-1973 | 10 | 0 | 0 |
| Ted Lanfear | 1963 | 1 | 0 | 0 | |
| Temple Buell | 1958 | 3 | 0 | 0 | |
| Theo Helfrich | 1952-1953 | 2 | 0 | 0 | |
| Theodore | Hong Kong* | 1977-1978,1981-1983 | 43 | 0 | 0 |
| Token | Great Britain | 1974 | 3 | 0 | 0 |
| Toleman | Great Britain | 1981-1985 | 57 | 0 | 0 |
| Tom Wheatcroft Racing | 1970 | 1 | 0 | 0 | |
| Toni Ulmen | 1952 | 2 | 0 | 0 | |
| Tony Crook | 1952-1953 | 2 | 0 | 0 | |
| Tony Gaze | 1952 | 3 | 0 | 0 | |
| Tony Marsh | 1961 | 2 | 0 | 0 | |
| Toyota | Japan | 2002-2009 | 139 | 0 | 0 |
| Trevis | 1951-1952,1955,1960 | 4 | 0 | 0 | |
| Trojan | Great Britain | 1974 | 6 | 0 | 0 |
| Turner | 1953 | 1 | 0 | 0 | |
| Tyrrell | Great Britain | 1970-1998 | 440 | 24 | 1 |
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