Our People
Board of Directors
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Amber Banfield
Non-Executive ChairAmber Banfield
Non-Executive ChairAmber joined the SRG Global Board as a Non-Executive Director on 25 October 2021 and became Non-Executive Deputy Chair of SRG Global on 28 November 2024 before she was appointed Non-Executive Chair on 9 October 2025. Amber is a member of the Audit and Risk Committee, a member of the Remuneration and Nomination Committee and is Chair of the Zero Harm Board Committee.
Amber brings valuable experience in transformational growth supporting the customers, markets and sectors serviced by SRG Global, as well as additional skills in sustainability and new energy markets.
Amber has been involved in the resource and energy sectors for over 25 years. She held operations, management and advisory positions with several ASX-listed entities, including Worley Limited (ASX: WOR) supporting the company’s growth to become the world’s largest energy and resources engineering service provider. Her roles related to strategy, commercial, sustainability, mergers and acquisitions, servicing the sectors of mining, renewable power, gas and infrastructure. More recently, Amber has supported companies relating to ESG, decarbonisation and sustainable investments.
Amber is also a Non-Executive Director of ASX-listed companies Perseus Mining and Cyprium Metals. Amber was previously a Non-Executive Director of Leo Lithium and was on the Board of the Western Australian Football Commission.
Amber holds a Bachelor of Engineering (Environmental) degree and a Master of Business Administration, both awarded by the University of Western Australia.
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David MacGeorge
Managing DirectorDavid MacGeorge
Managing DirectorDavid Macgeorge was appointed Managing Director of SRG Global in September 2018. Prior to this, David held the role of Managing Director for SRG Limited since May 2014.
David has extensive senior executive experience in contracting, logistics, infrastructure and mining service industries and has a strong record of leading business transformations, driving value creation and growth through a unique understanding of strategy, customer focus and shareholder returns.
Prior to joining SRG, David held senior executive roles with BIS Industries, Cleanaway and CHEP (a subsidiary of Brambles). He also provided consultancy to Leighton Contractors.
David holds a Bachelor of Business and has completed the Senior Executive Management program at INSEAD Business School in France.
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Roger Lee
CFO, Company Secretary, Executive DirectorRoger Lee
CFO, Company Secretary, Executive DirectorRoger joined the SRG Global Board as Executive Director on 23 November 2023. Roger brings over 25 years’ experience in senior and executive management in Australia and has played an instrumental role in the strategic transformation of the Company since his appointment to the Executive Leadership Team in July 2014.
Prior to joining SRG, Roger played an integral role in the establishment of Broad Group Holdings (now part of the Leighton Contractors Group), a national commercial and civil construction company which grew from inception to annual revenues of over half a billion dollars during his tenure.
During his time at Broad, he held various executive roles including Director/CFO, and subsequently Managing Director of Broad. He has also held other Executive Finance roles at Leighton Contractors (now part of CPB), both at corporate level and within the Infrastructure Division.
Roger is a qualified CPA and is a graduate of the University of Western Australia in Commerce, majoring in Finance and Accounting.
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Linda O’Farrell
Non-Executive DirectorLinda O’Farrell
Non-Executive DirectorLinda O’Farrell joined the SRG Global Board as a Non-Executive Director in July 2025 and was appointed a member of the Remuneration and Nomination Committee.
Linda is a highly accomplished senior executive with a strong track record in shaping organisational culture, workforce strategy and governance. Her distinguished career has included leadership roles at Fortescue, Newcrest, BHP and Mount Gibson Iron, and she is also the founder of The Glow Circuit wellbeing club and Go Higher Pty Ltd – a purpose-driven consultancy that partners with organisations and leaders to elevate performance through cultural transformation.
In addition to her executive background, Linda is an experienced non-executive director, who serves on the boards of Austin Engineering, Rocky Bay Limited and Lifeline Australia. Her broad governance experience, combined with her background in culture and people strategy, strengthens SRG Global’s Board capabilities, particularly in areas related to human capital, organisational resilience, ESG and stakeholder engagement.
Linda holds a Bachelor of Economics (Honours in Industrial Relations) awarded by the University of Western Australia and is a Member of the Australian Institute of Company Directors and Chief Executive Women.
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Kerry Wilson
Non-Executive DirectorKerry Wilson
Non-Executive DirectorKerry joined the SRG Global Board as a Non-Executive Director on 23 November, 2023. Kerry is Chairman of the Remuneration and Nominations Committee and a member of the Audit and Risk Committee of SRG Global.
Kerry holds a degree in Psychology and brings significant experience to the Board in relation to human resources, safety and industrial relations both domestically and internationally. Kerry has held a number of global executive roles in his 30-year career in the Brambles Group. From 2013 to 2023, Kerry held positions on the NSW Business Chamber as a State Councillor and Chair of the Work, Health and Safety Committee. He also was the principal owner of an industrial relations consultancy firm which was sold in 2023.
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Mark Foster
Non-Executive DirectorMark Foster
Non-Executive DirectorMark joined the SRG Global Board as a Non-Executive Director in February 2026 and was appointed Chairman of the Audit and Risk Committee.
Mark Foster graduated from the University of Western Australia in 1995 with a Bachelor of Commerce (majoring in Accounting and Finance), and a Bachelor of Laws and is also a member of FINSIA (formerly the Securities Institute of Australia). Mark was appointed Partner of Steinepreis Paganin in 2001 and has been the Managing Partner of the firm since 2015. Mark brings extensive experience in advising ASX listed entities with a focus on legal, commercial, governance, strategy and capital markets. Mark served on the Hale School Board of Governors for 10 years and was Chair between 2018 and 2023.
Leadership Team
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David MacGeorge
Managing DirectorDavid MacGeorge
Managing DirectorDavid Macgeorge was appointed Managing Director of SRG Global in September 2018. Prior to this, David held the role of Managing Director for SRG Limited since May 2014.
David has extensive senior executive experience in contracting, logistics, infrastructure and mining service industries and has a strong record of leading business transformations, driving value creation and growth through a unique understanding of strategy, customer focus and shareholder returns.
Prior to joining SRG, David held senior executive roles with BIS Industries, Cleanaway and CHEP (a subsidiary of Brambles). He also provided consultancy to Leighton Contractors.
David holds a Bachelor of Business and has completed the Senior Executive Management program at INSEAD Business School in France.
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Roger Lee
CFO, Company Secretary, Executive DirectorRoger Lee
CFO, Company Secretary, Executive DirectorRoger joined the SRG Global Board as Executive Director on 23 November 2023. Roger brings over 25 years’ experience in senior and executive management in Australia and has played an instrumental role in the strategic transformation of the Company since his appointment to the Executive Leadership Team in July 2014.
Prior to joining SRG, Roger played an integral role in the establishment of Broad Group Holdings (now part of the Leighton Contractors Group), a national commercial and civil construction company which grew from inception to annual revenues of over half a billion dollars during his tenure.
During his time at Broad, he held various executive roles including Director/CFO, and subsequently Managing Director of Broad. He has also held other Executive Finance roles at Leighton Contractors (now part of CPB), both at corporate level and within the Infrastructure Division.
Roger is a qualified CPA and is a graduate of the University of Western Australia in Commerce, majoring in Finance and Accounting.
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Paul Dawson
Chief Operating Officer BuildingPaul Dawson
Chief Operating Officer BuildingPaul was appointed to the Executive Leadership Team in October 2019. Paul brings over forty years’ senior management experience in the building industry.
Paul previously founded the Gallery Facades business prior to its acquisition into the SRG Global business.
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Corey Maranesi
Executive General Manager Corporate Services and New ZealandCorey Maranesi
Executive General Manager Corporate Services and New ZealandCorey was appointed to the Executive Leadership Team in April 2015. Corey has over 20 years senior management experience in commercial, risk and finance positions.
Prior to joining SRG Global, Corey’s previous roles covered a wide range of industries including infrastructure, logistics, mining and manufacturing.
Corey holds a Bachelor of Commerce degree, Masters in Business Administration and is also a Certified Practicing Accountant.
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Shanelle Zanazzi
Executive General Manager PeopleShanelle Zanazzi
Executive General Manager PeopleShanelle joined SRG Global in 2019 and was appointed to the Executive Leadership Team in 2022 as Group General Manager Human Resources.
An experienced Human Resources professional, Shanelle has a proven track record of building and developing HR teams focussed on providing a high level of operational support. With an employment history spanning the Construction, Mining, Energy and Oil & Gas industries, Shanelle has developed and implemented HR programs in Employment/Industrial Relations, Performance Management, Organisational Development, Workforce & Succession Planning, Salary Review and Recognition and Reward.
Shanelle’s strong background in Strategic HR Initiatives, Enterprise Agreements, ER/IR Management, Workforce Planning and Mobilisation of workforces across the full complement of industries that SRG Global service is a valuable inclusion in the Leadership Team. Shanelle holds a Bachelor of Arts (Psychology & Human Resource Management) and has completed Cultural Diversity training with Indigenous Services Australia.
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Jeremy Vajas
Executive General Manager Health, Safety, Environment and TrainingJeremy Vajas
Executive General Manager Health, Safety, Environment and TrainingJeremy joined SRG Global in 2013 and has held various leadership roles in both operational and safety functions across the organisation.
Commencing with the business as a HSEQ Coordinator, Jeremy was appointed to the Group HSE Operations Manager position in 2015, a role which he held for five years. During his tenure in this role, he displayed a high degree of integrity, extensive capability, service excellence and transparency in his relationships with all stakeholders. This led to him being selected as Contract Manager for the FMG Shutdown Services and Maintenance Contract where he successfully oversaw the mobilisation and establishment of ongoing operations.
Jeremy was appointed to the Executive Leadership Team in March 2022 as Group General Manager Health, Safety, Environment and Training.
Jeremy holds tertiary qualifications in Occupational Health and Safety, Leadership and Management, Psychology and Aviation.
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Nathan Steiner
Chief Operating Officer MiningNathan Steiner
Chief Operating Officer MiningNathan was appointed to the Executive Leadership Team in July 2023. Nathan has over 25 years of mining services, senior management, and operational delivery experience.
Since joining SRG Global in 2014, Nathan has played a key role in the transformation of the Mining Services operating segment through the expansion of services and ability to secure and renew multi-year contracts across Australia. Over the past 2 decades, Nathan has led teams responsible for the delivery of integrated production drill and blast mining services across a range of commodities including gold, iron ore, copper, lithium and nickel across Australia.
Nathan has successfully completed the Advanced Management Program at the INSEAD Business School in France.
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Paul Greenacre
Chief Operating Officer Civil & EngineeringPaul Greenacre
Chief Operating Officer Civil & EngineeringPaul was appointed to the Executive Leadership Team in July 2023. Paul has over two decades of infrastructure project delivery experience and senior management expertise.
Throughout his career Paul has delivered significant infrastructure projects including international road and bridge expansions, major transport and utilities projects and mining sector developments. Paul has successfully overseen projects delivered under a range of contract models, both in Australia and internationally. Before joining SRG Global in 2018, Paul held senior roles with Leighton Group and BMD Constructions.
Paul holds a Bachelor of Engineering (Honours) from the University of Technology Sydney and is a member of Engineers Australia as an Engineering Executive and Chartered Civil Engineer.
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Will Grobler
Chief Operating Officer InfrastructureWill Grobler
Chief Operating Officer InfrastructureWill was appointed to the Executive Leadership Team in July 2023. Will has over 25 years’ experience in civil engineering, executive level leadership and operational delivery.
Prior to joining SRG Global, Will oversaw the merger of the three organisations that would ultimately operate as WBHO Infrastructure delivering construction and maintenance services across the transport, mining, aviation, telecommunications, utilities, and ports sectors. His extensive operational experience and inclusive leadership style have contributed to the successful delivery of complex projects throughout Australia and internationally.
Will holds a Bachelor of Engineering from the University of Pretoria and is a Member of Engineers Australia.
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Judson Lorkin
Executive General Manager – Finance and Company SecretaryJudson Lorkin
Executive General Manager – Finance and Company SecretaryJudson was appointed Executive General Manager – Finance and Company Secretary in January 2025. Judson previously held senior roles including Group Financial Controller and Group Manager – Corporate Development since joining SRG Global in 2016.
Prior to SRG Global, Judson held senior roles in investment banking, corporate finance advisory and capital markets advisory. Judson has extensive strategic, financial and governance leadership experience across the industrials, mining, oil & gas, infrastructure and financial services sectors.
Judson qualified as an actuary (AIAA) after completing his Bachelor of Science (Actuarial Science), holds a Graduate Diploma in Applied Finance (Corporate Finance), is a Graduate of the INSEAD Advanced Management Programme (AMP) and is a Fellow of the Financial Services Institute of Australasia (FINSIA), Fellow of the Governance Institute of Australia, Associate CPA and Member of the Australian Institute of Company Directors (AICD).