Browse Corporate Bodies - T
- Tafel-Shone
- Taig Eucalyptus Company (1960s - ?)
- Tarax Pty Ltd (c. 1950 - 1972)
- Tasmanian Field Naturalists Club Inc (1904 - )
- Tasmanian Herbarium (c. 1830 - )
- Tasmanian Paper Pty Ltd (1928 - 1930)
- Tasmanian Pulp and Forest Holdings Ltd (c. 1972 - ?)
- Taubmans Pty Ltd ( - 1989)
- Taylor-Elliotts Ltd ( - 1930)
- Technical Committee on Agricultural Chemicals, Commonwealth of Australia
- Technical Co-operation Program (1967 - )
- Telecom Australia
- see Australian and Overseas Telecommunications Corporation (1992 - 1993) - Telecom Australia
- see Australian Telecommunications Commission (1975 - 1989) - Telecom Australia
- see Australian Telecommunications Corporation (1989 - 1992) - Telecom Australia International Limited (1970s - )
- Telectronics Holdings Limited ( - 1988)
- Telectronics Pty Ltd (1963 - 1996)
- Telematics Research and Application Collaboratory Research Team, Swinburne University of Technology
- Telephone & Electrical Industries (TEI)
- Telephone Manufacturing Company (Australia)
- Telstra Corporation Limited (1993 - )
- Tennyson Holdings Limited (1986 - 2000)
- Textile Panel (1940s - 1950s)
- Theiss Bros Pty Ltd (1946 - ?)
- Therapeutic Goods Administration (1991 - ), Commonwealth of Australia
- Thomas Baker and Company Laboratory (1887 - 1894)
- Thomas McPherson & Sons (1860 - ?)
- Thomas Nationwide Transport Limited (1946 - 1986)
- Thompson Engineering & Pipe Co. Ltd
- Thorn EMI Electronics Australia Pty Ltd ( - 1983)
- Thymus Biology Unit (1981 - 1996), The Walter and Eliza Hall Institute of Medical Research
- Timber Sectional Committee (1930 - ?), Standards Association of Australia
- Timbrol Ltd (1920s - 1950s)
- Tioxide Australia Pty Ltd ( - 1996)
- Titan Manufacturing Company (1888 - 1927)
- TNT Limited
- Toft Bros Industries Limited (c. 1966 - 1980)
- Trans Australian Railway (1917 - ?)
- Trans-Australia Airlines (TAA) (1946 - 1986)
- Transfield (Qld) Pty Ltd (c. 1960 - 1980s)
- Transfield Industries
- Transplantation Unit (1981 - 1996), The Walter and Eliza Hall Institute of Medical Research
- Trevor Boiler and Engineering Company (1909 - c. 1980)
- Trials Resources Laboratory (1978 - 1981), Defence Research Centre Salisbury
- Tribophysics Section (1946 - 1948), Commonwealth Scientific and Industrial Research Organisation
- Tugan Aircraft Company (? - 1930s)