Abergeldie Complex Infrastructure was established by Mick Boyle in 1994, with its mission to deliver the complex infrastructure needed to build better communities.

Starting with a single office in Sydney, Abergeldie has expanded its operations throughout eastern Australia, with successful projects completed as far south as Melbourne and northward to Mackay and beyond.

As the number and scale of projects have grown, regional offices have been opened in Brisbane, Newcastle, Townsville and Canberra. In 2007, with an eye on opportunities in the mining industry, Abergeldie added blind bore drilling to its capabilities by purchasing Ardent Underground Pty Ltd, which now operates as Abergeldie Mining.

In 2008, Abergeldie acquired John Young (Kelvinhaugh) Pty Ltd, after a long period of association, bringing in-house a depth of expertise and experience in civil process engineering. The civil process portion of the business now contracts as Abergeldie Young Process Engineering, offering design, supply, and installation services to a broad range of clients in the wastewater treatment, water supply, fuel, food and materials handling industries.

Abergeldie also saw opportunities in the steel fabrication industry, having for several years sub-contracted out high value work of that kind on many projects. In 2009, a 50 per cent stake was acquired in ASM Fabrications Pty Ltd, which specialises in the fabrication of aluminium, mild steel and stainless steel.