ONYX safely and reliably delivers complex energy and industrial projects through integrated engineering, procurement, construction, commissioning, and operational support.
To enable the safe, reliable, and sustainable delivery of critical energy and industrial infrastructure.
ONYX is an execution-led delivery company specialising in complex energy and industrial projects across onshore and offshore environments.
We focus on construction, commissioning, and brownfield project delivery, integrating engineering and procurement capability where it enhances delivery certainty, safety, and control.
Built on a proven legacy of project execution, ONYX retains the core team, systems, and discipline developed through delivery in live operating, remote, and high-risk environments — with major energy projects in Russia since 2005.
Projects delivered safely, predictably, and efficiently — on time, to specification, and within cost.
Full alignment across engineering, procurement, construction, commissioning, and operations — one team, one purpose.
Strong systems, rigorous planning, quality assurance, and field leadership embedded in every project.
Objective oversight, governance, technical assurance, and project controls — protecting the owner's interests throughout delivery.
Execution-driven engineering focused on constructability, operability, and field engineering. Brownfield design and modification scope aligned to site delivery.
Supply chain management aligned to site delivery schedules and execution requirements. Strategic procurement to support material control and delivery certainty.
Disciplined construction delivery across onshore and offshore environments. Proven performance in complex, remote, and brownfield project conditions.
Structured commissioning and start-up delivery. System completion, testing, verification, and handover aligned to operational requirements.
Independent project assurance and Owner's Engineer services. Objective governance, technical oversight, and project controls protecting the client's interests.
Operations and maintenance support for complex energy assets. Structured O&M delivery in live environments ensuring continued safe performance.
Execution certainty through embedded systems, disciplined processes, and accountable site leadership.