OUR INDUSTRIES

Volta Energy Group is a leading Australian energy advisory, design, project delivery, and high-voltage commissioning business, with a strong reputation for supporting complex renewable energy, transmission, datacentre, and broader energy infrastructure projects. The company has established itself as a trusted partner to developers, asset owners, and contractors across Australia’s rapidly evolving energy sector.

The shareholders of Volta Energy Group engaged Nash Advisory to act as exclusive sell-side adviser in connection with the sale of the business. The transaction represented a significant milestone for Volta and provided the business with access to an international platform, resources, and client relationships, positioning the combined group to capitalise on growing investment in renewable energy, transmission infrastructure, datacentres, and the broader energy transition across Australia and New Zealand.

Volta was acquired by the UK-based OCU Group, a leading infrastructure services business backed by Triton Partners.

The transaction was led by Thomas Butler, with support from Lachlan Posar, Jock Mitchell, and Josephine Ung.

ExcelPlas is one of Australia's leading independent materials testing and forensic laboratories, with more than 30 years of operating history and over 15,000 completed laboratory projects. The business specialises in testing for polymer, plastics, geosynthetics, rubber, composite and protective coatings, and its forensic failure analysis is used by clients across infrastructure, resources, government, defence, and industrial sectors.

McLarens is a global claims and risk management firm working across loss adjusting, claims management, and forensic and technical consulting. In Australia and New Zealand, it operates through Halliwell, its technical consulting arm, which provides forensic engineering, fire investigation and building consulting to insurers, lawyers and the property sector. Halliwell has built out its regional presence since 2023 through a series of specialist acquisitions, and ExcelPlas adds a materials testing capability to the platform.

The founders of ExcelPlas engaged Nash Advisory to advise on the sale of the business. Nash supported shareholders through the transaction, culminating in the successful acquisition of ExcelPlas by Halliwell.

The transaction was led by Paul Nemets, with support from Lachlan Sanford.

Geosyntec Consultants is a leading specialist engineering and consulting firm headquartered in the United States, providing environmental, geotechnical, and infrastructure advisory services to clients across government, industrial, and commercial sectors. Backed by Blackstone, one of the world's largest alternative asset managers, Geosyntec has pursued an active growth strategy through both organic expansion and strategic acquisitions.

JBS&G is a prominent Australian environmental and geotechnical consulting firm, delivering contaminated land, hydrogeology, and environmental risk management services across resources, infrastructure, and government sectors. JBS&G has established itself as a highly regarded independent consultancy within the Australian environmental services landscape.

Geosyntec engaged Nash Advisory to act as buy-side M&A adviser in connection with its acquisition of JBS&G, supporting Geosyntec's strategy to expand its operations and capabilities into the Australian market. Nash Advisory managed the end-to-end transaction process through to successful completion.

The transaction was led by Thomas Butler, with support from Hayden Bateman and Jock Mitchell.