Browse Corporate Bodies - J
- J. Dyson & Co ( - 1980s)
- J. Kitchen & Sons Pty Ltd (1883 - 1962)
- J. P. Williams and Associates
- J. W. & T. A. Smith
- James Alston and Sons Pty Ltd (c. 1874 - 1920s)
- James Bell Machinery Co (1960s - 1965)
- James Cook University of North Queensland
- James Hardie and Co Pty Ltd (1937 - c. 1979)
- James Hardie Australia Pty Ltd (1998 - c. 2001)
- James Hardie Industries Ltd (1916 - )
- James Howden and Co Australia Pty Ltd (1962? - ?)
- James N. Kirby Products Pty Ltd (1951 - ?)
- John Connell & Associates
- John Danks and Son Pty Ltd (1859 - )
- John Gibbs and Co
- John Holland Constructions (1950 - c. 1991)
- John Holland Group Pty Ltd (1949 - )
- John Lysaght (Australia) Ltd (1921 - 1980s)
- John Thompson (Australia) Pty Ltd (1924 - ?)
- John Walker & Co Ltd
- Johns & Waygood Ltd (1892 - 1966)
- Joint Centre for Crop Improvement, The University of Melbourne
- Joint Coal Board (1947 - 2002)
- Joint Expert Committee on Food Additives, United Nations
- Joint Microelectronics Research Centre (1981? - ?)
- Joint Tropical Research Unit (JTRU) (1962 - 1977)
- Joint Tropical Trials Research Establishment (JTTRE) (1977 - 1988)
- Jones Scott & Co (1870s - ?)
- Joseph Gilling & Partners
- Joshua Brothers (1874 - ?)
- Joy Manufacturing Company Pty Ltd (1944 - )
- Joyce Brothers
- Julius Kruttschnitt Mineral Research Centre (JKMRC) (1970 - ), The University of Queensland