NAUTILUS

Capabilities

Every trade a complex availability demands.

In-shop fabrication quality with the mobility to execute repair and modification efforts wherever your vessel is — pier-side, dry dock, or ports across the Pacific.

Plasma cutting of steel plate in the fabrication shop

Fabrication

Steel, formed to spec.

In-shop fabrication with the quality base of a dedicated yard — from one-off repair parts to production runs, delivered to marine and industrial specifications.

  • Metal fabrication — components and complete assemblies
  • Structural steel — cutting, forming, and erection
  • Watertight doors and hatches — fabrication, repair, and certification support
Welder performing TIG welding aboard ship

Certified welding

Qualified procedures, every position.

Welding performed to qualified NAVSEA procedures by certified welders — in the shop or aboard ship. Send us your specification and we'll confirm procedure coverage for your scope.

  • FCAW-MIG — qualified procedure
  • GMAW-MIG — qualified procedure
  • GTAW-TIG — qualified procedure
  • TIG Pipe — qualified procedure
Amphibious assault ship in dry dock at a San Diego shipyard

Shipboard execution

Complex availabilities, end to end.

Trades that come together to execute complex shipboard work equivalent to selected restricted availabilities — planned, staffed, and delivered to fleet standards.

  • Pipefitting — hydraulic, seawater, and auxiliary systems
  • Electrical work and cable pulling
  • Machinery services through our vetted partner
  • SRA-equivalent planning and execution

Design & engineering

We don't just repair vessels. We design them.

Our next-generation electric amphibious platform — a design study developed with marine engineers, battery technology experts, and amphibious vehicle specialists for a San Diego tour fleet operator.

Concept render of a next-generation electric amphibious tour vehicle on the shoreline

Purpose-built platform

Lightweight amphibious architecture engineered for both land and sea — not an adaptation of a legacy hull.

Redundant propulsion

Independent dual-drive systems for road and water operations, engineered for fail-operational safety.

Marine-grade HV systems

Sealed high-voltage architecture with active isolation monitoring against water intrusion.

Real-time diagnostics

Continuous telemetry for battery health and system status, enabling predictive maintenance.

Concept visualization — design study. Specifications subject to engineering development.

The full index

Eight core trades. One accountable partner.

Metal Fabrication

In-shop and shipboard fabrication of components and assemblies, from one-off repair parts to production runs.

Structural Steel Manufacturing

Design-assist, cutting, forming, and erection of structural steel for marine and industrial applications.

Certified Welding

FCAW-MIG, GMAW-MIG, GTAW-TIG, TIG pipe, and more — performed to qualified NAVSEA welding procedures.

Pipefitting

Shipboard piping repair, renewal, and new installation across hydraulic, seawater, and auxiliary systems.

Electrical & Cable Pulling

Shipboard electrical work and cable-pulling supporting modernization and repair availabilities.

Watertight Doors & Hatches

Fabrication, repair, and certification support for watertight doors, hatches, and closures.

Machinery Services

Machinery repair and overhaul delivered through our vetted machining partner network.

SRA-Equivalent Availabilities

Planning and execution of complex shipboard work equivalent to selected restricted availabilities (SRAs).

Where we work

The quality of a home yard, wherever your vessel is.

San Diego, CA

Shops and headquarters — pier-side and dry dock support

East & West Coasts

Mobilized repair and modification efforts, CONUS-wide

Hawaiʻi & Guam

Forward-deployed execution across the Pacific

Ready to scope your next availability?

Send us your work package and our team will respond with a plan.

Request a Quote