NAICS codes / 488390

NAICS 488390: Other Support Activities for Water Transportation — open federal opportunities

2 open notices on SAM.gov. Top buyers: HOMELAND SECURITY, DEPARTMENT OF (1), DEPT OF DEFENSE (1).

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Notice of Intent to Sole-Source Offshore Support Vessel

HOMELAND SECURITY, DEPARTMENT OF · US COAST GUARD · Special Notice · posted Oct 30, 2026
NAICS 488390Small Business (total)Due Nov 2, 2026Marina del Rey, CA

USNS NEWPORT - Cofferdam Installation Services

DEPT OF DEFENSE · DEPT OF THE NAVY · Presolicitation · posted Oct 20, 2026
NAICS 488390Due Nov 5, 2026Orange, TX

Related NAICS codes (industry group 4883)

How NAICS codes decide small business size: NAICS codes for small business · notice types explained · set-asides