The Professional Radio Employees' Institute of Australasia was a renaming of the earlier Radio-Telegraphists Institute of Australasia which had started as the Radio-Telegraphists (Marine) Institute of Australasia in 1916. In 1975 the name changed to the Professional Radio and Electronics Institute of Australasia, and then in 1992 it amalgamated with other public sector unions to eventually form part of the Community and Public Sector Union in 1994.