| Michael Birch | General Manager, Energy | 2021 | 2023 |
| Christian Johnstone | Chief Financial Officer | 2016 | 2023 |
| Alan Wang | Non-Executive Director | | 2023 |
| Melvin Poh | Non-Executive Director | | 2023 |
| Yu Liang Wu | Non-Executive Chair | | 2023 |
| Chee Kar Ooi | Non-Executive Director | | 2023 |
| Shi Jie Toh | Non-Executive Director | | 2023 |
| Heng Ching Chew | Non-Executive Director | | 2023 |
| Chiaw Koon Eng | Non-Executive Director | 2016 | 2023 |
| Shane Kimpton | Managing Director, Chief Executive Officer | 2017 | 2023 |
| Warren Puvanendran | General Manager, Operations | 2020 | 2022 |
| Patrick O'Boyle | Business Development Consultant | 2020 | 2021 |
| Michelle Antonio | Group Manager, Legal & Risk | 2018 | 2021 |
| Warren Puvanendran | General Manager, Strategy & Development | 2019 | 2020 |
| Daniel Kennedy | Chief Operating Officer | 2018 | 2020 |
| Michael Nesbitt | General Manager, East Coast | 2018 | 2019 |
| Jennifer McIlveen | Group General Manager, Strategy & Development | 2017 | 2019 |
| Warren Puvanendran | Pre-Contracts Manager | 2017 | 2019 |
| Michael Nesbitt | Project Manager, Project Director | 2016 | 2018 |
| Warren Puvanendran | General Manager, Malaysia | 2017 | 2018 |
| Kareena Waters | Training Manager | 2017 | 2018 |
| Will Potter | Operations Manager, Fabrication & Industrial Maintenance; Head of Quality | 2016 | 2018 |
| Jennifer McIlveen | Project Director, Oil & Gas Maintenance | 2015 | 2017 |
| Jennifer McIlveen | Manager, Pre-Contracts | 2017 | 2017 |
| Simon High | Chief Executive | 2016 | 2017 |
| James Stokes | Chief Operating Officer, AGC & NT Port & Marine | 2016 | 2017 |
| Graeme Rooke | Project Director | 2014 | 2016 |
| Phillip Coetzer | Chief Financial Officer | 2015 | 2016 |
| Michael Nesbitt | Executive General Manager, Projects | 2013 | 2016 |
| Christopher Dargie | Executive General Manager of Strategy, Development, Singapore Operations | 2015 | 2016 |
| John Turner | Finance Manager, Corporate Division | 2015 | 2016 |
| Gerard Hutchinson | Managing Director | 2015 | 2016 |
| Meg O'Hanlon | Proposals Coordinator | 2014 | 2016 |
| Brent Maas | Group Manager, Transformation | 2015 | 2016 |
| Will Potter | National Manager, Quality & Process Improvement | 2015 | 2016 |
| Paul Birighitti | Executive General Manager, Maintenance Services | 2014 | 2016 |
| Will Potter | Operations Manager, Fabrication | 2013 | 2015 |
| Phillip Coetzer | Group Manager, Finance | 2014 | 2015 |
| Roze Maravillas | Corporate Affairs Manager | 2012 | 2015 |
| Gerard Hutchinson | Executive Director, Chief Financial Officer | 2013 | 2015 |
| Stuart Kenny | Chief Executive, Executive Chair | 2011 | 2015 |
| Jennifer McIlveen | Strategy Manager | 2012 | 2015 |
| Christopher Dargie | Executive Group Manager, Strategy & Development | 2014 | 2015 |
| Leo Crohan | Group Manager, Business Development | 2012 | 2014 |
| Laurie Barlow | Chief Executive | 2012 | 2014 |
| Srikrishnan Vaidyanathan | Financial Controller, Group Finance Manager | 2009 | 2013 |
| Ron Kurniadi | Group Finance Manager | 2011 | 2013 |
| Gerard Hutchinson | General Manager, Corporate Development | 2012 | 2013 |
| Steve Brown | Business Development Manager, Mining & Resources | 2010 | 2012 |
| Laith Amin | Group Manager of Business Development, Marketing & Proposals | 2009 | 2012 |
| Ron Kurniadi | Integration Manager | 2010 | 2011 |
| Martin Edwards | Executive General Manager, Operations | 2010 | 2011 |
| Stuart Kenny | Non-Executive Director | 2008 | 2011 |
| Karen Dobbs | Manager, Marketing & Communications | 2008 | 2011 |
| John Sheridan | Managing Director, Chief Executive | 2008 | 2011 |
| Leanne Sewell | Communications & Events Advisor | 2009 | 2011 |
| Joe Macri | Business Relationships Manager | 2003 | 2010 |
| Rod Bowes | Group Manager, Marketing & Proposals | 2005 | 2010 |
| Elizabeth McLaughlin | Personal Assistant, Office Manager | 2006 | 2008 |
| James Fitzgerald | Executive Director | 2005 | 2008 |
| Stuart Kenny | Chief Executive | 1998 | 2008 |
| Rod Bowes | Estimating Manager | 2002 | 2005 |
| James Fitzgerald | Managing Director, Ausclad Industries | 1989 | 1998 |
| Andrew Horsfield | General Manager – Maintenance | 2018 | |
| Astin Crabb | Communications Advisor | | |
| Yamile Chapman | Marketing Manager | | |
| Anne Twomey | Communications Advisor | | |
| Kira Cardenosa | Communications & Events Advisor | | |
| Matt Prendergast | Executive General Manager, Business Services | 2014 | |
| Nathan Pike | General Manager, Operations | 2018 | |
| Roze Maravillas | Strategy & Marketing Manager | 2018 | |
| Bernard Toh | Non-Executive Director | | |
| Simon MacLeod | Chief Operating Officer, MAS Australasia | 2008 | |
