Browse Corporate Bodies - P
- P. N. Russell and Company (1855 - 1875)
- Pacific Dunlop Limited (1986 - 2002)
- Pancontinental Mining Limited (1971 - 1997)
- Papermakers Pty Ltd (1926 - ?)
- Paraburdoo Mine
- Paraburdoo Power Station
- Parke Davis Pty Ltd (1970 - )
- Parker Centre
- see A. J. Parker CRC for Hydrometallurgy (1992 - 2005) - Parker Centre
- see Parker CRC for Integrated Hydrometallurgy Solutions (2005 - ) - Parker Cooperative Research Centre for Integrated Hydrometallurgy Solutions
- see Parker CRC for Integrated Hydrometallurgy Solutions (2005 - ) - Parker CRC for Integrated Hydrometallurgy Solutions (2005 - )
- Parks Australia (2000 - ), Commonwealth of Australia
- Parks Australia North, Commonwealth of Australia
- Parks Australia South, Commonwealth of Australia
- Parliament of Victoria, Royal Commission for Promoting Technological and Industrial Instruction (1869 - 1890)
- Particulate Fluids Processing Centre (2000 - ), The University of Melbourne
- Pasteur Institute of Australia (1890 - 1898)
- Patent Office (1903 - 1992), Commonwealth of Australia
- Patent Preserved Meat Manufactory (1846 - ?)
- Pathological Society of New South Wales (1932 - 1939)
- Peanut Company of Australia (1997 - )
- Peanut Marketing Board (1924 - 1992)
- Pearcey Foundation (1998 - )
- Pechiney Australia Pty Ltd (1972 - c. 1998)
- Peko Wallsend Limited ( - 1988)
- Peninsula School of Computing and Information technology, Monash University
- Perdriau Rubber Co Ltd (1904 - 1929)
- Performance Merino Breeders Association (1983 - ?)
- Perrot, Lyon, Mathieson Pty Ltd (1977 - )
- Perth Observatory (1896 - ), Colony of Western Australia
- Perth Water Board
- Perth Zoo
- see The Zoological Parks Authority (1919 - ) - The Peter Doherty Institute for Infection and Immunity (c. 2014 - )
- Peter Francis Points Arboretum (1966 - )
- Peter MacCallum Cancer Institute (1986 - )
- Petroleum and Chemical Corporation (Australia) Ltd (1953 - 1960s)
- Petroleum Exploration Society of Australia
- Pharmaceutical Society of Australia (1976 - )
- Pharmaceutical Society of Victoria (1857 - 1970s)
- Pharmacy Board of Victoria (1876 - )
- Philips Electrical Industries
- Philosophical Institute of Victoria (1855 - 1859)
- Philosophical Society of Adelaide
- see Adelaide Philosophical Society (1853 - 1880) - Philosophical Society of Australasia (1821 - c. 1825)
- Philosophical Society of New South Wales (1856 - 1866)
- Philosophical Society of Queensland (1859 - 1884)
- Philosophical Society of Victoria (1854 - 1855)
- Philsophical Society of Australia
- see Philosophical Society of Australasia (1821 - c. 1825) - Phoenix Australia (1995 - )
- Phoenix Australia Centre for Posttraumatic Mental Health
- see Phoenix Australia (1995 - ) - Phoenix Foundry Co Ltd (1854 - 1900s)
- Physics Museum, The University of Melbourne
- Phytologic Museum of Melbourne
- see Botanical Museum of Melbourne (1853 - 1896), Colony of Victoria - Pigment Manufacturers of Australia (1961 - 1990)
- Pigments Manufacturers of Australia (1970 - )
- PIM
- see Presbyterian Inland Mission (1977 - ), Presbyterian Church of Australia - Pioneer Chemicals (? - 1960s)
- Pioneer Spring Co Ltd
- Pipeline Authority of South Australia ( - 1995)
- Pipeline Technologists
- PIRSA [I]
- see Department for Primary Industries and Resources South Australia (1997 - 2011), State of South Australia - PIRSA II
- see Department of Primary Industries and Regions SA (2011 - ), State of South Australia - The Platipus Society
- see Tasmanian Natural History Society (1838 - 1849) - Plessey Australia Pty Ltd (c. 1939 - )
- PMB Australia Limited (1992 - 1997)
- The Points Arboretum
- see Peter Francis Points Arboretum (1966 - ) - Poisons Schedule Standing Committee, National Health and Medical Research Council (NHMRC)
- Polyactiva (2010 - )
- Polymer Technology Centre (1990 - c. 2000), RMIT University
- Pork CRC
- see CRC for an Internationally Competitive Pork Industry (2005 - 2011) - Postmaster-General's Department (1901 - 1975)
- Postmaster-General's Department, Research Laboratories
- Poultry CRC
- see CRC for the Australian Poultry Industries (2003 - 2017) - Powerhouse Museum (1988 - ), State of New South Wales
- Predictive Mineral Discovery CRC
- see CRC for Predictive Mineral Discovery (2001 - 2008) - Presbyterian Church of Australia
- Presbyterian Church of Australia, Australian Inland Mission (1912 - c. 1977)
- Presbyterian Church of Australia, Presbyterian Inland Mission (1977 - )
- Presbyterian Inland Mission (1977 - ), Presbyterian Church of Australia
- Pressed Metal Pty Ltd
- Prestige Ltd (1922 - c. 1964)
- Prickly Pear Board
- see Commonwealth Prickly Pear Board (1919 - 1935) - Prime Minister's Department (1911 - 1971), Commonwealth of Australia
- Prime Minister's Science, Engineering and Innovation Council (1997 - )
- Project Hiport
- Project Jindalee (1970s - ?)
- Project Karriwarra
- Project Mallard
- Project Parakeet
- Project Raven
- Project Waler
- Proprietary Medicines Advisory Committee (1953 - 1991), State of Victoria
- Propulsion Research Laboratory (1949 - 1955), Chemistry and Physics Research Laboratory
- Province of South Australia
- see Colony of South Australia (1834 - 1901) - Public Health Department of Western Australia (1911 - 1984), State of Western Australia
- Pyneboard Pty Ltd (1960 - ?)