The world’s only dedicated
subsea insurance specialist.

Pressure Vessels for Human Occupation

We understand that “Risk” happens on the surface, not just at depth.

The operator’s reality.

For a PVHO operator, the dive is often the safest part of the day. We understand that risk is also what happens between dive-cycles:

  • The dynamics of the A-frame during Launch and Recovery in high sea states.

  • The strict maintenance cycles of acrylic viewports under ASME PVHO-1 standards.

  • The logistics, integration and management of Lithium battery systems.

  • The complex Interface Matrix inherent to multi-stakeholder deployments.

Physical & Regulatory

The engineering “handshake” between the host vessel’s deck and your equipment.

We understand the intricacies of integrating Lloyd’s-classed grillage onto the deck of an ABS-classed mothership, and the reality of multiple surveyors witnessing the same NDT or load-test.

Command & Control

The critical human interface between the Vessel Master and your Operations Director.

We understand the protocols and mechanisms which define Authority and the tension that can exist between the various stakeholders during Simultaneous Operations.

The Liability Gap

The engineering “handshake” between the host vessel’s deck and your equipment.

We understand the contractual interface between the Mother Vessel’s P&I Club and the Submersible’s specialist hull policy. We ensure there is no “grey zone” where coverage vanishes when the hook is released.

We recognise that submersibles are merely the sharp end of a complex system-of-systems.

We treat it like what it is: a life-critical system where Classification is currency and maintenance is mandatory.

Contingency Risk

This specialised coverage is engineered to protect your balance sheet against enforceable third-party liabilities arising from localised equipment breakdown.

Our Contingency Risk product acts as a targeted financial backstop, absorbing the contractual and operational fallout from that single-point failure.

Sector-specific Solutions

Yacht-based: For private owners and superyachts. Coverage that accounts for “idle time,” guest liability, and the complex integration with the mother vessel’s P&I club.

Commercial Tourism: For high-cycle passenger units, we often focus on Business Interruption – ensuring that if a thruster fails or a motor-controller needs unexpected replacement, your revenue stream is protected while the sub is dry.

Habitats & Saturation Complexes. Our focus shifts to the redundancy of Life Support Systems, Transfer Under Pressure mating risks, and the necessary contingencies for emergencies.

Class matters.

For Classed Assets: We leverage your survey status (Annuals, Intermediates, Specials) to drive competitive terms.

For Unclassed/Experimental: We utilise our engineering background to help you build a technical safety case that underwriters will accept, often bridging the gap for prototypes moving toward certification.

Let us translate your risk profile into something the London market will understand and underwrite.