Monadelphous is a prominent Australian engineering group renowned for delivering comprehensive construction, maintenance, and industrial services. Specializing in the resources, energy, and infrastructure sectors, the company has built a strong reputation for safety, quality, and innovative solutions. From executing large-scale multidisciplinary construction projects to providing essential maintenance for critical operational assets, Monadelphous plays a vital role in supporting key industries across Australia and select international markets. Their services span structural, mechanical, piping, electrical, and instrumentation works, catering to complex and challenging project environments.
The Welshpool headquarters serves as the central hub for Monadelphous's corporate governance, strategic decision-making, financial management, engineering oversight, and administrative support for its national and international operations.
The facility likely comprises modern office spaces, advanced communication infrastructure, and potentially workshop or training facilities geared towards supporting its engineering and operational teams. It's designed to facilitate collaboration and operational excellence.
The headquarters fosters a professional, safety-first, and results-oriented work environment. It emphasizes teamwork, innovation in engineering solutions, and a commitment to delivering high-quality outcomes for clients, reflecting the company's core values.
Its strategic location in Welshpool, Perth, provides excellent access to major clients in the Western Australian mining and energy sectors, a skilled labor pool, and key transport links, underpinning its operational efficiency and responsiveness.
Monadelphous primarily operates throughout Australia, with strategically located offices and workshops in all key states and territories to support major resource and infrastructure projects. Beyond Australia, the company has an established presence in New Zealand, Papua New Guinea, Mongolia, Chile, and the United States, delivering specialized engineering, construction, and maintenance services to international clients in the mining, oil & gas, and infrastructure sectors. This global footprint enables Monadelphous to support clients with diverse geographical needs.
59 Kurnall Road
Welshpool
Western Australia
Australia
Address: Level 5, 545 Queen Street
To deliver localized engineering, construction, and maintenance services, capitalizing on regional expertise and resources to address the specific needs of clients in Queensland and New South Wales.
Address: Lot 500, Olympic Dam Highway
To offer immediate, on-the-ground specialist services to significant mining clients in South Australia, ensuring operational continuity and project success in a remote, critical industrial zone.
Address: ICC Tower, 13th Floor, Jamiyan Gun Street-9, 1st Khoroo, Sukhbaatar District
To establish a strategic foothold in the developing Mongolian resources market, extending Monadelphous's engineering and maintenance expertise to support large-scale mining operations in the region.
Address: 53 Connett Road East, Bell Block
To cater to the specific needs of the New Zealand energy and industrial markets, leveraging Monadelphous's expertise in asset maintenance and project delivery.
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As of April 2025, Monadelphous' leadership includes:
Monadelphous has been backed by several prominent investors over the years, including:
In the past 12 months, Monadelphous has experienced changes at the Non-Executive Director level, reflecting standard board renewal processes. The core operational executive leadership team has remained stable, with no major publicly announced changes.
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Monadelphous commonly uses a standard corporate email format. The most frequently observed pattern is the employee's first initial followed by their last name. Variations might exist for common names or specific departments.
flast@monadelphous.com.au
Format
jsmith@monadelphous.com.au
Example
85%
Success rate
Mining Weekly / ASX • May 15, 2024
Monadelphous announced it has secured new contracts and contract extensions in the resources and energy sectors across Australia and Papua New Guinea, with a combined value of approximately $220 million. Key clients include BHP, Rio Tinto, and Newmont, covering a range of construction and maintenance services....more
MarketScreener / ASX • February 20, 2024
Monadelphous released its financial results for the half-year ending December 31, 2023, reporting a significant 20.3% increase in revenue to $1.25 billion and improved underlying EBITDA margins. The company also highlighted securing approximately $680 million in new contracts and extensions during this period....more
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