Rennie hires 5 new Executive Directors and promotes 3 leaders

Continuing its fast track growth trajectory, Rennie has boosted its leadership team with eight new members, five of which have been hired externally.
The significant intake of new leaders marks a bold new phase for Rennie, which has grown from a founding team to more than 80 professionals in just four years – and is now according to CEO Simone Rennie firmly on the path towards its medium-term ambition to grow to 300 staff.
“I’m incredibly proud of the team we’re building and of our starting line-up for FY26,” said Rennie, who co-founded the firm in Brisbane with spouse Matt Rennie. In 2023, the pair secured financial backing from Pemba Capital Partners, and today, Rennie has more than 80 people across offices in Brisbane, Sydney, Melbourne, and Perth.
Five of the new Executive Directors have been brought in from other consultancies or industry, adding extensive expertise in strategy, capital markets, and policy reform, in sectors including energy, resources, government and infrastructure.
Nick Turton joins Rennie in Sydney with over two decades of experience in due diligence and optimisation assessment for infrastructure intensive organisations, project delivery, contract risk management, operational performance improvement and independent assurance for major projects and programs.
An experienced infrastructure advisor and project director, he will strengthen Rennie’s presence in the energy and utilities sector, particularly in shaping future energy systems and unlocking infrastructure investment.
Georgine Roodenrys joins in Brisbane, bringing a wealth of public policy and leadership experience, including as a former Deputy Secretary in the Queensland Government and at the intersection of regenerative industrial development; with deep expertise in climate, decarbonisation, sustainability, energy transition, nature and the circular economy.
Her career has been defined by a deep commitment to advancing environmental stewardship – championing initiatives in economic transition, nature repair and climate resilience in both the public and private sector.
Prior to joining Rennie, Roodenrys led the Queensland Government’s Climate Action Plan 2030, delivered the groundbreaking Land Restoration Fund, and contributed to the national economic transition under Future Made in Australia.
Eamonn McGinn is a well-known economic and regulatory adviser, focused on using quantitative economic tools to inform strategic, policy and regulatory processes and decision-making for government, industry, and investors. His experience is largely in infrastructure intensive industries such as energy, resources, transport, and agriculture, and increasingly tackling challenges related to decarbonisation, climate resilience, and the circular economy.
Prior to joining Rennie, McGinn worked at Deloitte Access Economics for 15 years (including 4 years as a partner), and previously served the Australian Energy Regulator and the Australian Bureau of Agricultural and Resource Economics.
Lynda Osborne joins Rennie from her recent role as Client Lead Asia Pacific for Kraken Technologies (owned by Octopus Energy), a provider of customer technology platforms for the energy sector. During her 20+ year career in professional services, Osborne held leadership roles in the Technology Advisory practices at both PwC and Deloitte, before shifting to industry to deepen her operational reach.
Osborne will lead business and technology enabled transformation programs at Rennie’s clients, with a primary focus on energy, water and gas sector clients in the Victorian market.
Nick Yeo is a well-regarded advisor to founders, corporates, and investors navigating critical moments of growth, transformation, and ownership change. He has led complex, cross-border deals and strategic projects across Australia and Asia, with deep sector experience in natural resources, mining services, energy, industrials, and financial services.
His background as an electrical engineer in the resources industry, combined with his corporate finance leadership at Deloitte and KPMG, positions him well to support clients in the fast moving energy transition
Promotions
Alongside the external appointments, Rennie has promoted three of its Senior Directors to Executive Director roles:
Tim Brunner has been with Rennie since 2022, when he joined from EY. Since arriving, he has played a central role in shaping Rennie’s capital advisory and financial modelling capability in the Western Australia market.
His track record includes working across Australia on pre- & post-deal support, commercial and financial advisory, commercial due diligence, market entry, operation model design, and decarbonisation. Before his time in consulting, Brunner spent six years spent in an operational role at Rio Tinto.
Greg Ruthven joined Rennie in late 2021 from the Australian Energy Market Operator as an Associate Director, with deep expertise in energy markets, reform initiatives, market design and regulation. He advises market operators and regulatory bodies, and has built and mentored a team of regulatory consultants that are working daily on some of the most difficult elements of the energy trilemma.
David Melis joined the consulting firm in early 2024 with deep expertise in the Western Australia and national energy, mining and infrastructure sectors over his 20 years as a consultant (ten of which at Deloitte). He helps clients deliver major energy, carbon and societal transition projects, with his expertise spanning DER integration, product design, operating models, cost reduction, project delivery and project management offices.
Impact-driven advice
At a time when many well-known consultancies in Australia are taking a hit, Rennie’s growth is a bright spot in the market. “What sets Rennie apart is our belief that reform doesn’t stop at advice,” claimed Rennie.
“Our clients are seeking partners who can help them cut through complexity and move from policy to action in the energy transition. Our distinctive model – combining technical expertise, public sector insight and a focus on impact – is resonating strongly with both government and corporate clients.”