Project Management

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Stonewall Sparrow Ltd brings over a decade of specialist expertise in subsea engineering and project management, supporting clients across the offshore energy and marine sectors.

Working collaboratively with trusted industry partners, we deliver tailored solutions across the full subsea lifecycle, including:

• Subsea Systems Design & Engineering
• Ad Hoc Operations & Technical Support
• Installation Planning & Execution
• Procurement & Supply Chain Interface
• Integrity & Lifecycle Management

Our project management approach is built on technical rigour, safety, and efficiency, ensuring cost-effective delivery even in the most complex subsea and offshore environments.

Stonewall Sparrow Ltd provides specialist subsea engineering consultancy, delivering solutions that align with the highest industry standards and the unique requirements of each client.

Our focus on technical integrity, independent assessment, and schedule compliance ensures reliable, informed, and project-ready outcomes with no surprises.

Our experience covers:

• Marine transport and installation of various fixed, floating and subsea structures
• Driven pile foundations
• Suction piles
• Flexible and rigid pipelines
• Umbilicals and cables
• Subsea manifolds/PLETs/PLEMs
• Pre-commissioning (including pigging and hydrotesting)
• Hook-up
• Brownfields modifications
• Marine management

 Stonewall Sparrow Ltd provides specialist subsea decommissioning consultancy, delivering practical and cost-effective solutions that create value for clients across the offshore energy sector.

With experience spanning projects in Australia and South East Asia, our capabilities cover the full decommissioning lifecycle, including:

• Asset retirement obligation planning, estimates, and budgeting
• Regulatory consents, approvals, and engagement
• Concept evaluation and option selection
• Detailed subsea and structural engineering
• Project, marine, and stakeholder management
• Contractor oversight and interface management
• Equipment recovery, disposal, and close-out reporting
   

Our proven track record demonstrates the ability to develop realistic budgets and deliver robust, technically sound plans that withstand regulatory and operational scrutiny.

We understand that successful decommissioning requires engineering rigour combined with commercial innovation to minimise costs, manage risks, and ensure safe execution.

Our clients include operators, joint venture partners, consultants, main contractors, regulators, and insurers.

Stonewall Sparrow Ltd provides specialist engineering consultancy to the offshore renewables sector, supporting the safe and efficient delivery of projects across wind, wave, and tidal energy. Our expertise in subsea engineering and offshore project management ensures technically robust and commercially effective solutions for clients transitioning to sustainable energy.

With experience across Australia, South East Asia, and international markets, our capabilities in offshore renewables include:

• Concept development, feasibility, and option selection
• Subsea systems and structural design
• Installation planning and methodology development
• Cable route engineering and burial assessments
• Integrity management and lifecycle analysis
• Regulatory interface and approvals support
• Stakeholder and environmental engagement
• Project management, contractor oversight, and risk management
   

Our consultancy approach delivers realistic budgets, rigorous engineering, and practical solutions tailored to the complex challenges of offshore renewables.

We understand that success in the renewables sector requires innovation, adaptability, and robust engineering to achieve cost-effective, safe, and sustainable outcomes.

Our clients include developers, operators, EPC contractors, regulators, and investors across the offshore energy transition landscape.