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Thoma-Sea Marine Constructors LLC

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137 Barry Belanger St
Houma , LA 70363
United States
Booth #2519

Thoma-Sea Marine Constructors LLC

Thoma-Sea Marine Constructors is a family-owned full service shipyard with 3 Gulf Coast locations in Lockport and Houma, Louisiana. Our facilities included two new construction yards and one repair yard.
Thoma-Sea’s experienced, dedicated professionals use a common sense approach to quality ship building and repair.
Thoma-Sea’s broad range of experience includes: Offshore Towing vessels up to 11,000 horse power. Ship Escort Z Drive Tugs; ATB Tugs; Mini Supply Vessels; DP 2 Diesel Electric Platform Supply Vessels; Research Vessels; Inland Push Boats and Commercial Fishing Vessels.
Currently under construction is the following A Rolls Royce Designed Factory Trawler Processor for The American Fishing Market.
2 Barges for the Army Corps of Engineers.
Recent vessel deliveries include two Well Stimulation Vessels for Halliburton servicing the oilfields in Mexico.

Thoma-Sea’s repair facilities currently have 5 dry-docks in operating. Our capacities range from 2500 ton to 10600 tons.
Four of our docks are certified for use by USCG, Army Corp of Engineers and NASA.
Recent Improvements to our Facilities include a new hull erection site and 800 feet of bulkhead.

Products & Services


Carbon Fiber Shafting

Carbon Fiber ShaftingCENTA is a global leader in complete shafting system supply featuring light weight carbon fiber shafting along with our torsional couplings for unmatched system performance.

CENTAX-L Coupling

CENTAX-L CouplingOne of over 20 unique torsional couplings available from CENTA, CENTAX Series L is a highly flexible design that accommodates significant system misalignment.  Ideal for remote marine drives.

Clutch and Housing Packages

Clutch and Housing PackagesCENTA offers centrifugal and electromagnetic operated clutches packaged with torsional couplings and integrated housings for diesel engine drive packages.

Shipbuilding / Repair

Since 1990 Thoma-Sea has built over 100 high quality vessels serving various trades around the world. In 2008 we started our repair division to date we have dry docked and repaired over 400 vessels.  We are capable of building and repairing vessels in excess of 300’.

Barge Building Repair

We have the capabilities to build and repair barges in excess of 400’. We are conveniently 35 miles from the Gulf of Mexico on the Houma Navigation Canal with no air draft restrictions and 16’ controlling depth in the channel. For our customers working the ICW we are located 1 mile south of MM 59.

Boat Building / Repair

  • Barge Building and Repair
  • Boat Building and Repairs
  • Shipyard
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