NAICS 336611

336611: Ship Building and Repairing

Shipyards that build, convert, overhaul and repair ships, submarines and barges register under this code, along with many of the fabricators and trades that work inside them.

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NAICS 336611 in numbers

155,798awards on recordFY2001 to FY2028

$459.3Bobligatedmedian award $22.3K

3,796vendors that won3.6 offers on average

317open notices now478 posted in 90 days

1,112ending within 12 months$53.66B last time

AI-written from the numbers on this page

The Navy dominates purchasing in ship building and repair. The top three buyers are the Supplier of Shipbuilding Conversion and Repair, NAVSEA Headquarters, and the Supplier of Shipbuilding Groton, together accounting for over $342 billion in awards since 2001. Regional maintenance centers also buy significantly in this space. Most awards go to unrestricted competition, though SBA set-asides represent a meaningful portion at 28,051 awards. The median award of $22,300 masks wide variation, with total spending reaching $459.2 billion across 2,649 vendors over the period.

A firm considering entry should note that 1,179 contracts worth $54.06 billion are ending within the next 12 months, creating substantial recompete opportunity. The set-aside landscape favors small businesses, with SBA set-asides accounting for roughly 18 percent of all awards on record. However, the field is competitive: 2,649 distinct vendors have won work, and 220 active notices are currently posted. The median award size suggests many opportunities exist below the headline figures, though some awards reach into the billions.

Watch for contract endings through the next year, particularly at the three largest buyers. These recompetes will signal whether the Navy is consolidating vendors or expanding the supplier base. Monitor the active notices closely, as 220 current opportunities indicate steady procurement activity. Track whether set-aside percentages shift, which could affect strategy for firms targeting small business or veteran-owned designations.

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Everything behind these numbers for NAICS 336611

Every buying office that awarded in this code, ranked by what they spent
Every vendor that won, resolved to one record per business
Every award back to FY2001, searchable and exportable
Contracts ending soon, scored for how open the next round looks
Every open notice on this code, with the buyer history beside it

The numbers above are open to anybody. The organized record behind them is what a plan pays for: every award, every buyer, every vendor, cleaned, resolved and read again every night.

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Sources: USASpending and SAM.gov. Updated Oct 29, 2026. Names as published; vendor records resolved by UEI, CAGE and name.

Open notices

Open right now under NAICS 336611

305 open notices right now, 54 closing within seven days. The newest 5:

Posted	Notice	Buyer	NAICS	Due
Oct 29, 2026	Replace, Nonskid Deck Covering on FWD 04 Level Weather Deck etcSolicitation · Sasebo JP	NAVSUP FLT LOG CTR YOKOSUKA	336611	Nov 18, 2026
Oct 29, 2026	Preserve, Passage In 4-10-6-1-LSolicitation · Sasebo JP	NAVSUP FLT LOG CTR YOKOSUKA	336611	Nov 12, 2026
Oct 29, 2026	Support, Rev-01 (FO)~Well Deck AssessmentSolicitation · Sasebo JP	NAVSUP FLT LOG CTR YOKOSUKA	336611	Nov 4, 2026
Oct 29, 2026	Replace, Chemical-resistant Flooring in LaundrySolicitation · Sasebo JP	NAVSUP FLT LOG CTR YOKOSUKA	336611	Nov 18, 2026
Oct 28, 2026	Notice of Intent to Sole Source Scrubbers & Burners Repair ServicesCombined Synopsis/Solicitation · San Diego CA	PORTSMOUTH NAVAL SHIPYARD GF	336611	Oct 26, 2026

From the SAM.gov opportunities API, checked every hour. Each title opens that notice here, with what this office has actually bought beside it. Members see every open notice, filtered to their own codes, and are emailed daily on Shop, or hourly on Pro, Capture and Enterprise.

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What this code covers

NAICS 336611 covers operating a shipyard: a fixed facility with drydocks and fabrication equipment that can build a ship, meaning a vessel meant for something other than personal or recreational use. The work includes building complete ships or ship sections, conversion, overhaul and repair, and building submarines, barges and similar craft.

For a small firm the opportunity is mostly repair. Navy surface ships and submarines go through scheduled maintenance periods called availabilities, and the work packages inside them cover structure, piping, tanks, habitability, electrical and machinery. The Coast Guard, Military Sealift Command, the Army watercraft fleet and NOAA run similar repair programs. New construction belongs to a small number of large yards, and small shops reach it as subcontractors.

What federal buyers typically ask for

To compete for Navy ship repair as a prime you typically need a Master Ship Repair Agreement or an Agreement for Boat Repair with Naval Sea Systems Command, and the work is specified through the NAVSEA Standard Items that every availability invokes. Welding follows the NAVSEA technical publications for procedure qualification and fabrication welding, and hardware must meet shipboard shock and vibration requirements under MIL-DTL-901 and MIL-STD-167. Submarine work adds the Level I material control and SUBSAFE traceability rules.

ISO 9001 is the usual quality floor, with Navy oversight on site. The DFARS specialty metals clause and Buy American rules follow the steel and alloy. ITAR is less common on hull and habitability work than on combat systems, and contracts with controlled unclassified information carry CMMC.

Surface ship repair in the fleet concentration ports is often set aside for small business, or competed among the agreement holders in that port. Component and hardware buys run through NAVSUP Weapon Systems Support and DLA Land and Maritime, where set-asides are common.

332710

Machine shops for shafts, valves and fittings.

332322

Sheet metal for ventilation and joiner work.

336992

Armored vehicles, a similar heavy fabrication market.

335931

Shipboard receptacles, bus bars and wiring devices.

PSC	Name	Why it matters
J019	Maintenance, Repair, and Rebuilding of Equipment: Ships, Small Craft, Pontoons, and Floating Docks	Ship repair availabilities and drydockings.
J020	Maintenance, Repair, and Rebuilding of Equipment: Ship and Marine Equipment	Repair of shipboard machinery and equipment.
1905	Combat Ships and Landing Vessels	New construction of warships.
2040	Marine Hardware and Hull Items	Hatches, doors, cleats and hull fittings.
2090	Miscellaneous Ship and Marine Equipment	Shipboard equipment that fits nowhere else.

Before you bid

Check whether the notice requires a Master Ship Repair Agreement first. Without one you cannot prime a Navy availability, but you can still sell to the yard that wins it, and the award record tells you which yard.

Buyer profilesHow the regional maintenance centers and NAVSUP buy.
Incumbent profilesWhich yards hold the current repair awards.
For fabricatorsHow marine fabricators use LastAwarded.

Sources used on this page: Census NAICS 336611 · SAM.gov

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