Chairpersons
| 1948 | WF Barton | Fellow | New South Wales | NSW Railways |
| 1949-50-51-52-53-54 | DJ Fahey | Fellow | New South Wales | NSW Railways |
| 1955-56 | F Stewart | Fellow | Victoria | Westinghouse Brake & Signal |
| 1957-58-59-60 | GF Wooley | Fellow | Victoria | Victorian Railways |
| 1961-62-63 | LP Martin | Fellow | New South Wales | NSW Railways |
| 1964-65 | HW Bourne | Fellow | New South Wales | NSW Railways |
| 1966-67-68 | F Jones | Fellow | Queensland | Queensland Railways |
| 1969-70 | AG Irving | Fellow | Victoria | Victorian Railways |
| 1971-72-73 | FD Archer | Fellow | New South Wales | NSW Railways |
| 1974 | KM Hickson | Fellow | New South Wales | NSW Railways |
| 1975-76 | DE Evans | Fellow | Queensland | Queensland Railways |
| 1977-78 | HE McCamley | Member | New South Wales | NSW Railways |
| 1979-80 | JJ Cox | Fellow | Victoria | Victorian Railways |
| 1981-82 | EC Wooderson | Fellow | Queensland | Queensland Railways |
| 1983-84 | DJ Both | Fellow | South Australia | South Australian Railways |
| 1985-86 | J Rees | Fellow | New South Wales | NSW Railways |
| 1987 | IF Ritchie | Fellow | Victoria | Westinghouse Brake & Signal |
| 1988 | DE McCauley | Fellow | Western Australia | Westrail |
| 1989 | RG Cumming | Fellow | Victoria | Victorian Railways |
| 1990 | JR Cowie | Fellow | South Australia | IRS |
| 1991 | WBB Johnston | Fellow | South Australia | Australian National |
| 1992 | RH Detering | Fellow | Victoria | Victorian Railways |
| 1993 | TJ Ellis | Fellow | Queensland | Queensland Railways |
| 1994 | FJ Londregan | Fellow | New South Wales | FJL Associates |
| 1995 | KA Davis | Fellow | Victoria | Connell Wagner |
| 1996 | FCJ Baker | Fellow | New South Wales | GEC Alsthom |
| 1997 | RL Legg | Fellow | Victoria | AustSig |
| 1998 | ML Menadue | Fellow | South Australia | Menadue Associates |
| 1999 | PR Symons | Fellow | New South Wales | Westinghouse Signals |
| 2000 | RA Bell | Fellow | Victoria | RAMABell |
| 2001-02 | LF Brearley | Fellow | Queensland | Union Switch & Signal |
| 2003 | KI Walker | Fellow | New South Wales | TMG International |
| 2004 | CR Page | Fellow | Victoria | Westinghouse Signals |
| 2005 | TG Moore | Fellow | New South Wales | ARTC |
| 2006-07 | RT Stepniewski | Fellow | New South Wales | United Group Infrastructure |
| 2008-09 | JJ Aitken | Member | New South Wales | Aitken & Partners |
| 2010-11 | SW Boshier | Member | Victoria | Invensys Rail |
| 2012-13 | R Baird | Fellow | Victoria | Rail Networks Consulting |
| 2014-15 | P McGregor | Fellow | New South Wales | Transport for NSW |
| 2016-17 | GJ Miller | Fellow | Victoria | Glenn Miller & Associates |
| 2018-19 | KP Sundareswaran | Fellow | New South Wales | Aurecon |
| 2020-21-22 | GR Hartwell | Associate Member | New South Wales | WSP |
| 2023 (until July) | JJ Aitken | Fellow | New South Wales | Aitken & Partners |
| 2023 (after July) | JT Skilton | Fellow | New Zealand | KiwiRail |
| 2024 | JT Skilton | Fellow | New Zealand | KiwiRail |