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Private company

Mainline Corporation

Former property development & construction company

Mainline Corporation Ltd ("Mainline") was one of Australia's largest construction companies during the late 1960s and early 1970s. Mainline Corporation was responsible for building some of Australia's most notable landmark buildings before its collapse in 1974.2 It was founded by Laurie O'Neil and Richard Baker.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1961Founded1
  • Industryconstruction, real estate development1
  • HeadquartersSydney1

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Mainline Corporation Ltd ("Mainline") was one of Australia's largest construction companies during the late 1960s and early 1970s. Mainline Corporation was responsible for building some of Australia's most notable landmark buildings before its collapse in 1974.2

Corporate structure

Mainline Corporation sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Mainline Corporation Sydney

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

The story

Founded by Laurie O'Neil and Richard Baker in 1961.1

Leadership

Who has led Mainline Corporation, and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Richard Baker1961–1974
197019801990200020102020

Subsidiaries and ownership

Subsidiaries

From Wikidata.1

Timeline

  1. Aug 20, 1974Dissolved Dissolved1
  2. 1961New chief executive Richard Baker becomes CEO1
  3. 1961Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2