Browse Corporate Bodies - H
- H. C. Sleigh Resources Ltd
- H. J. Heinz Co Australia Ltd (1935 - 1998)
- Habour Department
- see South Australian Harbor Department (1843 - 1860), Colony of South Australia - HACBSS
- see Homestead and Community Broadcast Satellite Service (HACBSS) (1980s - ) - Hall Bros
- Hamersley Iron Pty Ltd (1964 - )
- Hamilton Base Hospital Past Trainees' Association (1942 - )
- Harbours and Marine Department
- see Queensland Department of Harbours and Marine (1929 - 1989), State of Queensland - Hardboards Australia Ltd (HAL) (1967 - )
- Hardcastle & Richards (1952 - ?)
- Hardie Energy Products (c. 1987 - 1994)
- Hardman Chemicals Pty Ltd (1948 - ?)
- Hardman Laboratory Pty Ltd (? - 1948)
- Harold Meggitt (1920s - )
- Harris-Daishowa (Australia) Pty Ltd (1970? - )
- Hastings Deering (Australia) Ltd (1935 - )
- Hawker de Havilland Australia Pty Ltd (1960s - 1980s)
- Hawker de Havilland Limited (1980s - )
- Hawker de Havilland Victoria Limited (1986 - )
- Hawkesbury Agricultural College (1891 - 1989)
- Hazelwood Power Corporation Pty Ltd (1995 - 1996)
- Hazelwood Power Station (1970 - )
- HCRC
- see Human Communication Research Centre (1988 - 1993), The University of Melbourne - Healesville Sanctuary (1934 - )
- Health Department of Western Australia (1984 - ), State of Western Australia
- Health Insurance Commission (1974 - 2005), Commonwealth of Australia
- Heard Island Station (1947 - 1955), Australian National Antarctic Research Expeditions
- The HEARing CRC (2007 - )
- Heidelberg Graduates Association (1969 - )
- Hella Australia Pty Ltd (1961 - )
- Henry and Edward Youngman (1850s - ), Youngman, McCann & Co
- Henry Jones & Co
- Henry Lane Ltd
- Herald
- Herbarium Australiense (1975 - 1984)
- Heritage Collections Council (1996 - )
- Heron Island Research Station (1951 - )
- Hicksons (Aust) Pty Ltd (1957? - )
- High Speed Aerodynamics Laboratory (1949 - 1955), Chemistry and Physics Research Laboratory
- Historical Places Section, Department of Conservation and Natural Resources
- Hobart Botanical Gardens
- see Royal Tasmanian Botanical Gardens (1828 - ), Colony of Van Diemen's Land and Tasmania, and State of Tasmania - Hobart Electric Tramways Company (c. 1884 - )
- Hobart General Hospital (1860 - 1938)
- Hobart Town Mechanics Institute (1827 - 1871)
- Hoechst Australia Ltd (1964 - c. 1999)
- Hoffman-La Roche
- Hogarth Australian Meat Preserving Company
- Holden Ltd (1990s - )
- Holden's Motor Body Builders (1918 - 1931)
- Holeproof Hosiery Ltd (1920s - )
- Holt
- Home Farm
- see Katherine Research Station (1946 - 1981), Commonwealth Scientific and Industrial Research Organisation - Homestead and Community Broadcast Satellite Service (HACBSS) (1980s - )
- Horticultural Society of Victoria (1849 - 1885)
- Horticulture Branch, Plant Industry Division, Primary Industries Department (1963 - ), State of Queensland
- Hospital for Sick Children
- see Children's Hospital (1870 - 1953) - Housing Commission of Victoria (1938 - 1984), State of Victoria
- Howard Florey Institute of Experimental Physiology and Medicine (1971 - )
- Howard Florey Laboratories (1963 - 1971)
- Howard Smith Limited (1914 - 2001)
- HPM Industries Pty Ltd (1920s - )
- Huckson Diecasting (1929 - ?)
- The Hudson Institute of Medical Research
- Human Communication Research Centre (1988 - 1993), The University of Melbourne
- Human Genetics Society of Australasia (1977 - )
- Humble and Son
- Hume Brothers Cement Iron Company Ltd (1910 - 1920)
- Hume Pipe Company (Australia) Ltd (1920 - 1950)
- Hume Steel Ltd (1923 - 1950)
- Humes Ltd (1950 - c. 1990)
- Hunter District Water Supply and Sewerage Board (1892 - 1938), State of New South Wales
- Hunter River Steam Navigation Company (1839 - 1851)
- Hutcherson Bros Pty Ltd ( - 1970s)
- Hydro Electric Department (1914 - 1930), State of Tasmania
- Hydrocarbon Products Pty Ltd (1977 - )
- Hydro-Electric Commission of Tasmania (1930 - 1996), State of Tasmania