About Us

ICA Partners is one of Australia’s leading boutique advisory firms.

In 2012, Ironstone Capital Advisory was established by Michael Siede, Aaron Simcock and Greg Arandt. Alistair Craib also joined in 2013. We rebranded to ICA Partners in 2018. The firm’s four advisory principals have a combined 80+ years’ experience across energy, resources and infrastructure disciplines gained from their time in senior roles at UBS, BAML, Goldman Sachs, ABN AMRO, RBS and Macquarie Bank.


Since inception, we have been focussed solely on the infrastructure, energy and natural resources sectors, and are recognised as a trusted independent advisor to ASX100 companies, governments, funds and developers across these sectors.

With a team of over 30 professionals ICA Partners brings deep expertise to the areas of strategic advice, M&A, debt and equity advisory, PPPs, project finance, takeover defence and capital raisings.

ICA Partners has worked with corporate clients (including AGL, Sydney Airport, Spark Infrastructure, Oz Minerals, PanAust), infrastructure investors (including DIF, Cbus, Aware Super, Australian Super, John Laing, Morrison&Co, UBS) as well as state and federal governments.


Examples of our advisory roles include:

  • Morrison & Co on the sale of a 50% stake in the Macarthur Wind Farm
  • Iluka Resources A$1.25bn financing of the Eneabba Rare Earths Refinery (Phase 3) in Western Australia
  • HFI on the acquisition, project development and financing of the 162MW Columboola Solar Farm (Qld)
  • Advisor to Sydney Airport on its energy procurement strategy and corporate PPA

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ICA Partners was the top financial advisor in Renewables for Australia & New Zealand by deal value and deal count for 1H22, consolidating a strong performance in FY21 (Inframation News, 12/07/2022).

In addition to our market leading advisory service and given broad sector participation and industry connections, we can provide unique solutions to clients. ICA Partners is at the forefront of exploring opportunities to leverage our renewables and mining expertise to assist infrastructure and mining clients move towards clean energy solutions.