Federal NAICS Codes

NAICS 336611: Ship Building and Repairing

Explore obligations, trends, recent awards, and incumbent contractors for NAICS 336611.

NAICS 336611 federal market metrics

Total obligations
$440.3B
Total awards
139,201 awards
Active obligations
$178.6B
Size standard
1,300 employees

What this NAICS covers

NAICS 336611 covers ship building and repairing, including fabrication, assembly, outfitting, overhaul, conversion, drydocking, systems installation, sea trials, and factory testing of vessels and major marine systems in shipyards or repair facilities.

Federal opportunities under 336611 typically involve delivering and sustaining government vessels through new construction, heavy repair or conversion projects, integration and acceptance testing of marine systems, sea trials, certified trials records, and yard management to restore operational readiness.

FY2025 snapshot

Obligations
$8.1B
Awards
6,315
Average award
$1.3M
Change from FY2024
-60.8%

Recent awards

Search contractors

$400,000

AKIAK NS LLC

Office of the Secretary

PIID
1331L526F0282
PSC
R408 - SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT

$1,546,193

VANPORT MARINE, INC.

National Oceanic and Atmospheric Administration

PIID
1305M226F0326
PSC
1920 - FISHING VESSELS

$23,725

OPTIMIZE COURIER, LLC

Department of State

PIID
19CB6026P0582
PSC
R602 - SUPPORT- ADMINISTRATIVE: COURIER/MESSENGER

$5,096

XLEAGLE LLC

US Coast Guard

PIID
70Z04026PSBPL0084
PSC
J020 - MAINT/REPAIR/REBUILD OF EQUIPMENT- SHIP AND MARINE EQUIPMENT

$17,922

CUSTOM FABRICATORS, INC.

US Coast Guard

PIID
70Z08526PLREP0234
PSC
2090 - MISCELLANEOUS SHIP AND MARINE EQUIPMENT

FAQ

What work fits NAICS 336611?
  • Construction of new commercial or small government vessels including hull assembly, structural welding, system outfitting, and trial sea-acceptance support.
  • Major refit and conversion work such as lengthening, role conversion, or installation of new mission systems requiring shipyard engineering and dry-dock capabilities.
  • Routine and emergency repair services including hull plating replacement, structural reinforcement, shaft and propeller repairs, and onboard machinery repairs.
  • Overhaul or replacement of propulsion systems and auxiliary machinery including engine room integration, alignment, and post-repair sea trials.
When is NAICS 336611 a weak fit?
  • Naval architecture and marine engineering consulting: lacks fabrication, dry-dock capability, or prime responsibility for physical construction and on-site shipyard labor.
  • Vessel crewing and maritime transportation operations: excludes crew supply, voyage management, and commercial shipping services that operate vessels rather than build or repair them.
  • Small recreational boat manufacturing or fiberglass boat production: missing large-scale shipyard infrastructure and heavy metal fabrication capabilities required for full-size vessel construction.
What solicitation language points to NAICS 336611?
  • Solicitation lists dry-dock availability, graving dock or pier access, heavy-capacity cranes, and laydown areas as minimum contractor infrastructure requirements.
  • Required labor categories include certified shipfitters, hull welders with maritime welding qualifications, marine electricians, and pipefitters experienced with shipboard systems.
  • Performance requirements reference sea trials, hull integrity testing, alignment tolerances, fuel and oil containment procedures, and adherence to maritime pollution-prevention standards.

Put this market knowledge to work

Now that you know about NAICS 336611 - Ship Building and Repairing, let Sweetspot help you find and win relevant government contracts with AI-powered tools.