NAICS Code 336611: Ship Building and Repairing
National industry
SBA small business size standard: 1,300 employees
Definition
This U.S. industry comprises establishments primarily engaged in operating shipyards. Shipyards are fixed facilities with drydocks and fabrication equipment capable of building a ship, defined as watercraft typically suitable or intended for other than personal or recreational use. Activities of shipyards include the construction of ships, their repair, conversion and alteration, the production of prefabricated ship and barge sections, and specialized services, such as ship scaling.
Government contracts for this product: PSC 1905 Combat Ships and Landing Vessels
Code facts
- Part of
-
-
31-33
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336
-
3366
- 33661
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3366
-
336
-
31-33
- Contract awards
- 3,461 In the last 12 months
- Contract obligations
- $35,936,592,634 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 336611
- Barge building
- Cargo ship building
- Container ship building
- Dredge building
- Drilling and production platforms, floating, oil and gas, building
- Drydock, floating, building
- Ferryboat building
- Fireboat building
- Fishing boat, commercial, building
- Hydrofoil vessel building and repairing in shipyard
- Naval ship building
- Oil and gas offshore floating platforms manufacturing
- Passenger ship building
- Patrol boat building
- Sailing ships, commercial, manufacturing
- Ship dismantling at shipyards
- Ship repair done in a shipyard
- Ship scaling services done at a shipyard
- Ships (i.e., not suitable or intended for personal use) manufacturing
- Shipyard (i.e., facility capable of building ships)
- Submarine building
- Towboat building and repairing
- Tugboat building
- Yachts built in shipyards
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $12,750,998 |
| FY2026 | $44,185,073,834 |
| FY2025 | $35,936,592,634 |
| FY2024 | $24,356,811,957 |
| FY2023 | $26,934,318,746 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Electric Boat Corporation | $15,085,082,159 | |
| 2 | Huntington Ingalls Incorporated | $3,912,731,932 | |
| 3 | Davie Defense Inc. | $3,500,000,064 | |
| 4 | Huntington Ingalls Inc. | $3,229,341,918 | |
| 5 | National Steel And Shipbuilding Company | $2,790,383,078 | |
| 6 | Tote Services, LLC | $2,731,549,511 | |
| 7 | Bollinger Shipyards Lockport, L.L.C. | $2,302,299,514 | |
| 8 | Bath Iron Works Corporation | $2,296,615,068 | |
| 9 | Rauma Marine Constructions OY | $1,122,648,784 | |
| 10 | Vigor Marine LLC | $792,980,503 |
See the full FY2025 ranking of NAICS 336611 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $35,172,106,006 | |
| 2 | Department of Homeland Security | $7,970,084,416 | |
| 3 | Department of Transportation | $549,453,618 | |
| 4 | Department of the Army | $175,356,255 | |
| 5 | Department of Commerce | $89,720,860 | |
| 6 | Air Force | $88,774,746 | |
| 7 | Department of State | $33,433,589 | |
| 8 | DOD Education Activity | $30,020,444 | |
| 9 | Defense Logistics Agency | $22,551,624 | |
| 10 | Department of Health and Human Services | $16,936,075 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 1905 Combat Ships and Landing Vessels | $27,884,607,621 | |
| 2 | 1925 Special Service Vessels | $7,040,692,919 | |
| 3 | 1915 Cargo and Tanker Vessels | $2,696,853,978 | |
| 4 | J999 Non-Nuclear Ship Repair (West) | $2,065,765,596 | |
| 5 | J998 Non-Nuclear Ship Repair (East) | $1,952,469,253 | |
| 6 | Y1ED Construction of Ship Construction and Repair Facilities | $508,144,770 | |
| 7 | J019 Maintenance, Repair and Rebuilding of Equipment: Ships, Small Craft, Pontoons, and Floating Docks | $335,495,748 | |
| 8 | R425 Engineering and Technical Services | $187,984,850 | |
| 9 | 1930 Barges and Lighters, Cargo | $155,970,004 | |
| 10 | 1901 Aircraft Carriers | $137,591,513 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Connecticut | $15,042,950,353 | |
| 2 | Virginia | $5,004,035,117 | |
| 3 | Texas | $4,013,266,542 | |
| 4 | Mississippi | $3,997,747,679 | |
| 5 | Florida | $3,141,494,956 | |
| 6 | Louisiana | $2,584,179,389 | |
| 7 | Maine | $2,197,720,642 | |
| 8 | California | $1,838,602,668 | |
| 9 | Alabama | $1,091,216,483 | |
| 10 | Oregon | $640,979,198 | |
| 11 | Washington | $405,357,932 | |
| 12 | Maryland | $259,660,430 | |
| 13 | South Carolina | $238,667,082 | |
| 14 | Hawaii | $115,825,173 | |
| 15 | District of Columbia | $111,789,236 | |
| 16 | Pennsylvania | $110,724,297 | |
| 17 | Colorado | $48,494,432 | |
| 18 | Alaska | $35,459,270 | |
| 19 | Michigan | $30,460,930 | |
| 20 | New Jersey | $30,173,377 | |
| 21 | Guam | $28,540,890 | |
| 22 | Kentucky | $26,265,320 | |
| 23 | Georgia | $20,376,143 | |
| 24 | New York | $18,499,192 | |
| 25 | Tennessee | $14,717,013 | |
| 26 | Rhode Island | $12,810,301 | |
| 27 | Nebraska | $11,592,340 | |
| 28 | Massachusetts | $11,367,300 | |
| 29 | Minnesota | $7,548,892 | |
| 30 | Nevada | $7,499,117 | |
| 31 | Indiana | $7,148,411 | |
| 32 | Ohio | $3,434,679 | |
| 33 | Missouri | $3,417,223 | |
| 34 | North Carolina | $2,888,142 | |
| 35 | West Virginia | $2,524,370 | |
| 36 | Puerto Rico | $2,312,997 | |
| 37 | Illinois | $1,350,192 | |
| 38 | Oklahoma | $1,075,068 | |
| 39 | New Hampshire | $957,426 | |
| 40 | Arizona | $938,344 | |
| 41 | Utah | $620,550 | |
| 42 | Montana | $554,122 | |
| 43 | Iowa | $530,266 | |
| 44 | U.S. Virgin Islands | $189,047 | |
| 45 | Kansas | $163,500 |
Show all 45
Shares are of everything obligated under NAICS 336611 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 36,411 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.
Quick answers
What is NAICS 336611?
NAICS 336611 is Ship Building and Repairing, a national industry in NAICS 31-33, Manufacturing.
What is the NAICS code for barge building?
The NAICS code for barge building is 336611, Ship Building and Repairing.
What is the NAICS code for dredge building?
The NAICS code for dredge building is 336611, Ship Building and Repairing.
What is the NAICS code for tugboat building?
The NAICS code for tugboat building is 336611, Ship Building and Repairing.
When did the size standard for NAICS 336611 last change?
The most recent Federal Register rule on record that names NAICS 336611 in the SBA's size standards is "Small Business Size Standards: Manufacturing and Industries With Employee-Based Size Standards in Other Sectors Except Wholesale Trade and Retail Trade" (88 FR 9970), published Feb 15, 2023 and effective Mar 17, 2023.
How much do federal agencies spend under NAICS 336611?
Federal contracts under NAICS 336611 obligated $35,936,592,634 in fiscal year 2025 and $131,425,548,168 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 336611?
The contractors with the most obligated under NAICS 336611 in fiscal years 2026 and 2027 are Electric Boat Corporation ($15,085,082,159), Huntington Ingalls Incorporated ($3,912,731,932) and Davie Defense Inc. ($3,500,000,064).
Which agencies buy the most under NAICS 336611?
The agencies that obligated the most under NAICS 336611 in fiscal years 2026 and 2027 are Department of the Navy ($35,172,106,006), Department of Homeland Security ($7,970,084,416) and Department of Transportation ($549,453,618).
Which PSC codes are used with NAICS 336611?
The PSC codes with the most obligated under NAICS 336611 in fiscal years 2026 and 2027 are 1905 Combat Ships and Landing Vessels, 1925 Special Service Vessels and 1915 Cargo and Tanker Vessels.
Where is the work under NAICS 336611 performed?
By place of performance, the states with the most contract obligations under NAICS 336611 over the last 12 months are Connecticut ($15,042,950,353), Virginia ($5,004,035,117) and Texas ($4,013,266,542).
What is the latest contract opportunity under NAICS 336611?
The latest contract opportunity under NAICS 336611 is USS GRIDLEY (DDG 101) FY27 Depot Modernization Period (DMP) Award Notice, award notice from Naval Sea Systems Command (Navy), posted November 6, 2026.
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