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Magma Structures

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A Portsmouth-based composite engineering company specialising in large, high-performance carbon composite structures and free-standing yacht masts.

Last updated September 16, 2026

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Nov 4, 2026
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Overview

Magma Structures is a composite technology company based in Portsmouth, UK, describing itself as a global leader in composite technology. It engineers and delivers lightweight structures with specific weight, strength, durability and performance characteristics, and states that its team has been at the forefront of the specification, design, development, manufacture and testing of innovative free-standing yacht masts and Dyna-Rig systems for two decades. It serves the marine, oil and gas, transport and defence sectors, and operates a flexible waterside manufacturing facility at Trafalgar Wharf, Portsmouth, England.

History

Magma Structures states that its team has been at the forefront of the specification, design, development, manufacture and testing of innovative free-standing yacht masts and Dyna-Rig systems for two decades. It built the carbon composite masts and Dyna-Rigs for the world's top three largest private sailing vessels. In 2015 it delivered three superyacht carbon composite masts, including the world's tallest at over 100m, and another vessel was launched in 2017 with three carbon composite masts and the world's largest Dyna-Rig. The company operates a flexible waterside manufacturing facility at Trafalgar Wharf, Portsmouth, England, with a team including designers, composite engineers, systems engineers, manufacturers and project managers. It has extensive experience manufacturing carbon composites for high performance sectors including marine, transport, oil and gas and defence.

Products and positioning

Global leader in composite technology delivering unique, complex, high-performance composite structures.

  • Carbon composite masts

  • Dyna-Rig systems

  • Carbon fibre bogie (CAFIBO)

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