Exceptional Marine Vessel Services, Since 1990

The Thoma-Sea family of companies have been constructing and repairing quality vessels for the commercial marine sector for decades.

Beginning in early 1990: Thoma-Sea Boat Builders, Inc. started with a single shipyard located along the bank of the Intracoastal Waterway in Houma, Louisiana. There the Thomassie family began building projects for brown water towing and vessels for foreign fisheries.

Thoma-Sea continued to expand, building offshore tugs, escort tugs, and small platform supply vessels (PSVs). In January 2003, Thoma-Sea expanded by purchasing the then defunct Halter Shipyard in Lockport, Louisiana. The Lockport facilities allowed Thoma-Sea to build larger, more complex vessels, and Thoma-Sea soon became an industry leader.

Thoma-Sea Facility

Today, Thoma-Sea is a leading marine construction company in Louisiana, staffed by a team of experts.

When you’re looking for a Louisiana shipyard that can build and repair everything from tugboats to platform supply vessels. You can trust Thoma-Sea’s decades of experience.

Our Construction Projects

  • Offshore Tugs
  • Articulated Tug Barge (ATB)

  • Ship Escort Tugs

  • Platform Supply Vessels (PSVs)

  • Well Stimulation Vessels

  • Inland Tow Boats

  • Fishing Vessels

  • Oceanographic Research Survey Vessels

  • Barges

  • Repairs

Our Facilities

Our facilities span over 120 acres. All of our facilities are located near the central coast of Louisiana, featuring ready access to the Gulf of Mexico.

Our resources include:

  • Over 4,600 feet of waterfront access
  • Five Dry Docks ranging from 2500 tons to 10600 tons of lifting capacity

  • A 12,000 square foot ABS approved machine shop

  • A state-of-the-art pipe fabrication shop

  • 168,500 square feet of covered fabrication shops

  • 1,330 tons of combined mobile lifting capacity

  • A 14,000 square foot warehouse

Barge Fabrication Facility

Company Timeline

Thoma-Sea began as a small business owned by the Thomassie family in 1990. With an unrivaled dedication to quality and service, the company has expanded both physically and in repair and construction capability over the last thirty years.

Exceptional Marine Vessel Repair & Construction, Since 1990