- CEO
- Zoran Bebic
- Full Time Employees
- 7,482
- Sector
- Industrial services
- Industry
- Engineering & construction
- Address
- 59 Albany Highway Perth WA Australia 6100
- IPO Date
- Mar 28, 1991
- Business
- Monadelphous Group Limited is an Australian engineering company specializing in construction, maintenance, and industrial services primarily for the resources, energy, and infrastructure sectors. Its core offerings include multidisciplinary project management and construction services; mechanical, electrical, instrumentation, and piping services; structural steel fabrication, modularisation, and installation; plant commissioning and demolition; and maintenance services including shutdowns and sustaining capital works. The company also provides offsite pre-assembly, procurement, and specialized works such as marine and pipeline services. Monadelphous operates mainly in Australia with a strong presence in Western Australia and offices in Brisbane and Queensland. Founded in 1972 and headquartered in Perth, Western Australia, it serves major clients in mining, energy, and infrastructure industries.
In recent years, Monadelphous has strategically expanded through acquisitions and contract wins that broaden its capabilities and market reach. Notably, it entered agreements to acquire Western Australian contractors including Kerman Contracting and Melchor Contracting, enhancing its civil construction and structural concrete services. The company has secured multiple large-scale contracts exceeding AU$2.5 billion since early 2025, including extensions with major clients such as BHP Group, Rio Tinto, and Fortescue Metals Group. These contracts span multidisciplinary construction, maintenance, water management works, and energy infrastructure projects such as Battery Energy Storage Systems, demonstrating a pivot towards energy transition infrastructure. Monadelphous also maintains a joint venture with Lycopodium (Mondium) for engineering, procurement, and construction services. The company is well-positioned for sustainable growth with a focus on largescale, complex projects across resources, energy, and infrastructure sectors in Australia.