Grand Isle Shipyard, LLC

Company facts

Self-certified in SAM.gov

• For Profit Organization
• Limited Liability Company

Entity structure

Corporate Entity (Not Tax Exempt)

Other NAICS codes in SAM.gov

• 213112 Support Activities for Oil and Gas Operations
• 237130 Power and Communication Line and Related Structures Construction
• 237990 Other Heavy and Civil Engineering Construction
• 238120 Structural Steel and Precast Concrete Contractors
• 238210 Electrical Contractors and Other Wiring Installation Contractors
• 238910 Site Preparation Contractors
• 238990 All Other Specialty Trade Contractors
• 332812 Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers

Show all 14

• 541330 Engineering Services
• 541360 Geophysical Surveying and Mapping Services
• 541370 Surveying and Mapping (except Geophysical) Services
• 561730 Landscaping Services
• 562910 Remediation Services
• 624230 Emergency and Other Relief Services

SAM.gov registration date

Jul 10, 2003

Physical address

18838 LA-3235, Galliano, LA 70354, USA

Website

gisy.com

Founded

1948

Employees

1K-5K

Estimated annual revenue

$500M-$1B

Industry

1. Industrials
2. Capital Goods
3. Construction & Engineering

SIC code

87 Engineering & Management Services

Profiles

• LinkedIn
• Facebook

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Mar 6, 2026.