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
$429.5B
Total awards
138,724 awards
Active obligations
$167.5B
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
$7.9B
Awards
6,311
Average award
$1.3M
Change from FY2024
-60.9%

Recent awards

Search contractors

$274,432

GENTEX CORP

US Coast Guard

PIID
70Z04026P50494B00
PSC
5965 - HEADSETS, HANDSETS, MICROPHONES AND SPEAKERS

$35,753

JO-KELL INC.

US Coast Guard

PIID
70Z08026PMECP0126
PSC
2090 - MISCELLANEOUS SHIP AND MARINE EQUIPMENT

$4,490

ALASKA C-DIVE LLC

US Coast Guard

PIID
70Z08026PPBPL0067
PSC
J020 - MAINT/REPAIR/REBUILD OF EQUIPMENT- SHIP AND MARINE EQUIPMENT

$43,059

KRAFT POWER CORPORATION

US Coast Guard

PIID
70Z04026P50485B00
PSC
4330 - CENTRIFUGALS, SEPARATORS, AND PRESSURE AND VACUUM FILTERS

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.

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