SIC Code 3731 Ship Building and Repairing




Establishments primarily engaged in building and repairing ships, barges, and lighters, whether self-propelled or towed by other craft. This industry also includes the conversion and alteration of ships and the manufacture of off-shore oil and gas well drilling and production platforms (whether or not self-propelled).

Cross References

Establishments primarily engaged in fabricating structural assemblies or components for ships, or subcontractors engaged in ship painting, joinery, carpentry work, and electrical wiring installation, are classified in other industries.

Illustrative Examples

  • Barges, building and repairing
  • Cargo vessels, building and repairingCombat ships, building and repairingCrew boats, building and repairingDredges, building and repairingDrilling and production platforms, floating, oil and gasDrydocks, floatingFerryboats, building and repairingFireboats, building and repairingFishing vessels, large: seiners and trawlers-building and repairingHydrofoil vesselsLanding ships, building and repairingLighters, marine: building and repairingLighthouse tenders, building and repairingMarine riggingNaval ships, building and repairingOffshore supply boats, building and repairingPassenger-cargo vessels, building and repairingPatrol boats, building and repairingRadar towers, floatingSailing vessels, commercial: building and repairingScows, building and repairingSeiners, building and repairingShipbuilding and repairingSubmarine tenders, building and repairingTankers (ships), building and repairingTenders (ships), building and repairingTowboats, building and repairingTransport vessels, passenger and troop: building and repairingTrawlers, building and repairingTugboats, building and repairing

Industry Leaders

Further Classification

6-digit SIC

  • 373101Ship Builders & Repairers (mfrs)
  • 373102Barges (manufacturers)
  • 373104Ship Yards (mfrs)

7-digit SIC

  • 3731001Ship Builders & Repairers Mfg
  • 3731002Barges Mfg
  • 3731003Drilling & Production Platforms
  • 3731004Ship Yards Mfg
  • 3731005Commercial Cargo Ships, Building & Repairing
  • 3731006Cargo Vessels, Building & Repairing
  • 3731007Fishing Vessels-large-building & Repairing
  • 3731008Hydrofoil Vessels
  • 3731009Lighters-marine-building & Repairing
  • 3731010Lighthouse Tenders, Building & Repairing
  • 3731011Sailing Vessels-commercial-building & Repairing
  • 3731012Seiners, Building & Repairing
  • 3731013Tankers, Building & Repairing
  • 3731014Tenders-ships-building & Repairing
  • 3731015Towboats, Building & Repairing
  • 3731016Trawlers, Building & Repairing
  • 3731017Tugboats, Building & Repairing
  • 3731018Military Ships, Building & Repairing
  • 3731019Combat Vessels, Building & Repairing
  • 3731020Landing Ships, Building & Repairing
  • 3731021Offshore Supply Boats, Building & Repairing
  • 3731022Patrol Boats, Building & Repairing
  • 3731023Submarine Tenders, Building & Repairing
  • 3731024Submarines, Building & Repairing
  • 3731025Transport Vessels-troop-building & Repairing
  • 3731026Commercial Passenger Ships, Building & Repairing
  • 3731027Crew Boats, Building & Repairing
  • 3731028Ferryboats, Building & Repairing
  • 3731029Dredges, Building & Repairing
  • 3731030Drydocks, Floating
  • 3731031Marine Rigging
  • 3731032Radar Towers, Floating
  • 3731033Submersible Marine Robots, Manned Or Unmanned

8-digit SIC

  • 37310000Shipbuilding And Repairing
  • 37310100Commercial Cargo Ships, Building And Repairing
  • 37310101Barges, Building And Repairing
  • 37310102Cargo Vessels, Building And Repairing
  • 37310104Fishing Vessels, Large: Building And Repairing
  • 37310105Hydrofoil Vessels
  • 37310106Lighters, Marine: Building And Repairing
  • 37310107Lighthouse Tenders, Building And Repairing
  • 37310108Sailing Vessels, Commercial: Building And Repairing
  • 37310110Seiners, Building And Repairing
  • 37310111Tankers, Building And Repairing
  • 37310112Tenders, Ships: Building And Repairing
  • 37310113Towboats, Building And Repairing
  • 37310114Trawlers, Building And Repairing
  • 37310115Tugboats, Building And Repairing
  • 37310200Military Ships, Building And Repairing
  • 37310201Combat Vessels, Building And Repairing
  • 37310202Landing Ships, Building And Repairing
  • 37310203Offshore Supply Boats, Building And Repairing
  • 37310204Patrol Boats, Building And Repairing
  • 37310205Submarine Tenders, Building And Repairing
  • 37310206Submarines, Building And Repairing
  • 37310207Transport Vessels, Troop: Building And Repairing
  • 37310300Commercial Passenger Ships, Building And Repairing
  • 37310301Crew Boats, Building And Repairing
  • 37310302Ferryboats, Building And Repairing
  • 37319901Dredges, Building And Repairing
  • 37319902Drilling And Production Platforms, Floating (oil And Gas)
  • 37319903Drydocks, Floating
  • 37319904Marine Rigging
  • 37319905Radar Towers, Floating
  • 37319906Submersible Marine Robots, Manned Or Unmanned