Grand Isle Shipyard

Pioneering Energy Excellence

Website

About the firm

Grand Isle Shipyard (GIS) is an integrated energy-services provider headquartered in Galliano, Louisiana, founded in 1948. With over 3,200 employees across more than 20 strategically located facilities, GIS provides engineering, surveying, construction, fabrication, and specialty services across the energy, industrial, infrastructure, and power sectors. The organization serves upstream, midstream, and downstream oil and gas markets as well as refining, chemicals, manufacturing, and infrastructure clients domestically and internationally. GIS self-performs nearly all scopes of work across a project lifecycle, from conceptual engineering through commissioning and asset maintenance. It is ISO-9001 certified and operates an accredited Industrial Training Educational Center (ITEC).

Established
1948
Team
Large
Firm type
EPC · Civil Engineering · Electrical Engineering · Environmental Engineering · Land Surveying · Process Engineering · Coastal Engineering

Credentials

ISO-9001 · NCCER Accredited Assessment Center

Capabilities

Engineering & Survey

Service website

In-house engineering and surveying capabilities spanning the full project lifecycle, from site selection through detailed design and optimization.

  • Civil Engineering & Design

    Comprehensive civil design and structural engineering solutions for industrial and energy facilities.

  • Surveying & Geospatial

    Professional land, hydrographic, and industrial surveying services to support project planning and construction.

  • Coastal & Industrial Engineering

    Specialized engineering services focused on coastal restoration, industrial processes, and marine infrastructure.

  • Environmental Services

    Environmental technical services, assessments, and compliance monitoring for complex energy and industrial sites.

  • Site Selection & Concept Studies

    Early-stage feasibility studies, technology selection, and site evaluations to optimize project constructability.

  • Detailed Engineering & Design

    Comprehensive engineering design and drafting services to deliver highly constructible plans.

  • Optimization & Operational Enhancements

    Performance studies and engineering upgrades designed to optimize production and operational efficiency.

Construction

Service website

Self-performed mechanical, civil, structural, and electrical construction services utilizing innovative methodologies.

  • Mechanical Construction

    Mechanical installation, piping, and equipment erection for industrial plants and energy facilities.

  • Civil & Structural Construction

    Foundations, structural steel erection, and civil works to fortify critical industrial foundations.

  • Electrical & Instrumentation

    Comprehensive E&I installation, testing, and commissioning for complex power and process environments.

  • E&I Maintenance Services

    Long-term maintenance and troubleshooting of electrical systems and process instrumentation.

  • Electrical Upgrades

    System modifications, modernization, and power distribution upgrades for active industrial sites.

Fabrication

Service website

Custom steel and modular fabrication services delivering high-quality, pre-assembled systems ready for on-site installation.

  • Custom Fabrication

    In-house custom steel and piping fabrication tailored to specific project requirements.

  • Module Fabrication & Installation

    Modular assembly and structural module integration to accelerate field construction timelines.

Specialty Services

Service website

Specialized craft and technology solutions addressing asset integrity, maintenance, and emergency response.

  • Rope Access

    Specialized access solutions for high-elevation structural inspection, maintenance, and welding.

  • Drone & MODS Software Services

    Aerial inspections and structural asset visualization utilizing specialized software platforms.

  • Disaster Relief

    Rapid mobilization and infrastructure recovery support in response to severe weather events.

  • Utility Vegetation Management

    Clearing and management of transmission line right-of-ways to protect critical power infrastructure.

  • Civil Aggregates

    Supply and placement of foundational aggregates and materials for civil infrastructure projects.

  • Fabric Maintenance

    Surface preparation, coatings, and protection services to extend the operational life of steel assets.

Industries

Oil & Gas · Petrochemical · Manufacturing · Renewable Energy · Transportation · Ports & Harbors · Government · Utilities · Infrastructure · Industrial

Projects

Hurricane Ida Recovery

Infrastructure · 2021

Project details

Comprehensive disaster response and infrastructure recovery efforts following Hurricane Ida, restoring vital services and structural integrity to impacted facilities.

Taft LOX Upgrade

Oil & Gas

Project details

Engineering and upgrade services for the Taft liquid oxygen facility to optimize operational capabilities and modern process systems.

Refinery Rebuild Project

Petrochemical

Project details

Refinery reconstruction and system restoration services to return production facilities to full operational capacity.

Galliano Airbase

Galliano, LA · Government

Project details

Infrastructure construction and civil upgrades supporting operations at the Galliano Airbase.