In addition to the large shipbuilders listed in the other parts of this section, almost all of whom built small vessels as filler work, hundreds of small ship and boat yards built thousands of small vessels of every conceivable type. The table below lists over 300 yards that collectively built over 18,000 small vessels.
These tables cover US Navy patrol craft (PC, SC, PCE, PCS) - but not the small craft; torpedo boats (PT, BPT); crash boats (PTC, RPC); minesweepers (AM, AMc, YMS, BYMS); landing craft (LSM, LSM(R), LCT, LCI(L), LCS(L)) - but not the small ones (LCM, LCV, LCVP, LCP); ocean tugs (ATA, ATF, ATR); small auxiliaries (AN, ARS, ASR, APc); dry-docks (AFDB, AFDM, AFDL, ARD); and yard craft (YTB, YTM, YTL, YN, YF, YFB, YG, YO, YOG, YRD, YW); US Coast Guard vessels (WAGB, WPG, WPC, WLB, WLM, WLI, WLR, WYT); and US Army ships (F, FS, Y); tugs (LT, ST, MT, MTL); mine craft (MP, M, L); small craft (J, P, T and the rest); barges (BC, BD, BK, etc.); Corps of Engineers boats (generally unnumbered); and Defense Production Corporation boats (DPC).
The US Navy's small patrol craft, small landing craft, yard craft and dry-docks are not well documented and will be the subject of research for some time to come.
In addition, these tables do not include the many thousands of very small craft - made of wood, rubber and plastic - that were produced by manufacturers rather than by boatbuilders or steel fabricators: on this web site, a shipyard is a facility with a waterfront and some kind of launching system, not a factory with a loading dock out back.
To see the data by type of vessel, go to Small Vessels Built in WWII by Type.
DO NOT click on the name of the shipyard to go to its construction record: these links don't work.
Go to the Index of Shipyards instead.
| Shipbuilder | Location | Types of Vessel Built | # Built |
| Aberdeen Shipyard | Aberdeen WA | BSP | 3 |
| Ackerman Boat | Newport Beach CA | MTL, TP | 21 |
| Adams Boat Works | Seattle WA | MT | 3 |
| Adams Yacht Yard, Quincy | Quincy MA | SC | 27 |
| Albina Engine & Machine Works | Portland OR | PC, LCC, LCI, LCS, YO, FS | 229 |
| Alexander, L. F. | New Orleans LA | YT, ST, BC, BG | 15 |
| Allen Boat | Harvey LA | ST, L, BB, BC, BCS, BG, BW | 80 |
| American Bridge | Ambridge PA | BC, BCL, BD, BK, BKC | 376 |
| American Car & Foundry | Wilmington DE | AN, ARS, YMS, BTL | 69 |
| American Cruiser | Wilmington DE | SC | 10 |
| American Machinery | Orlando FL | ST, BCS | 79 |
| American Steel Dredge | Fort Wayne | ASD, BD, BK, BKC, BKR | 258 |
| Anderson & Cristofani | San Francisco CA | AMc, APc, YT | 27 |
| Annapolis Yacht Yard | Annapolis MD | PT, SC | 140 |
| Ashbridge Boatworks | Los Angeles CA | J | 20 |
| Associated Shipbuilders | Seattle WA | AM, YMS | 36 |
| Astoria Marine | Astoria OR | YMS, MTL | 31 |
| Auchter, George D. | Jacksonville FL | AFD | 5 |
| Baird, J. T. | Shreveport LA | JBBC | 40 |
| Ballard Marine Railway | Seattle WA | PCS, YMS | 14 |
| Barbee Marine | Seattle WA | LT, BCL | 18 |
| Barbour Boat Works | New Bern NC | AN, ARS, YMS | 14 |
| Basalt Rock Co. | Napa CA | ARS | 26 |
| Bauer-Smith Dredging | Port Lavaca TX | Ferry | 1 |
| Bellingham Shipyards | Bellingham WA | ARS, ATR, PCS, YMS | 33 |
| Bethlehem Steel | Bethlehem PA | BK | 28 |
| Bethlehem Steel | Cincinnati OH | BK | 198 |
| Birchfield Shipbuilding | Tacoma WA | FS, ST | 27 |
| Bison Shipbuilding | Buffalo NY | LCT | 353 |
| Blanchard Boat | Seattle WA | T | 8 |
| Boespflug Construction | Anacortes WA | BC | 34 |
| Brewster Shipyard | Long Island NY | MTL, BC | 20 |
| Bristol Yachtbuilding | Bristol RI | AMc, APc | 9 |
| Brownback, Henry Lowe | Morristown PA | SG | 15 |
| Brownsville Shipbuilding | Brownsville TX | MTL, BTL, P, QS, T | 60 |
| Burger Boat | Manitowoc WI | PC, SC, YMS, ST, P | 42 |
| Bushey & Sons, Ira S. | Brooklyn NY | ST, YT | 46 |
| Bushnell Steel | Jacksonville FL | BKR | 11 |
| Calderwood Yacht Yard | Manchester MA | SC | 8 |
| Calmes Engineering | New Orleans LA | ST | 1 |
| Calumet Shipyard & Dry Dock | Chicago IL | L, FS, LT | 32 |
| Cambridge Shipbuilding | Cambridge MD | FS, P, T | 39 |
| Camden Shipbuilding | Camden ME | AMc, APc | 25 |
| Campagna Construction | Northampton MA | BK | 75 |
| Campbell Machine | San Diego CA | YMS | 4 |
| Cape Cod Shipbuilding | Wareham MA | MTL, J | 21 |
| Carl & Sons | New York NY | BK | 100 |
| Carter-Christiansen Boat | Dover OH | BK | 130 |
| Casey Boatbuilding | Fairhaven MA | FS, P, QS, T | 32 |
| Central Steel Construction | Buffalo NY | BK, BKO | 29 |
| Charleston Shipbuilding | Charleston SC | ATF | 36 |
| Chicago Bridge | Newburgh NY | YFD | 3 |
| Chilman Shipyard | Hoquiam WA | FS, LT, MT | 24 |
| Choctaw Boat Works | Mobile AL | J | 13 |
| Chris-Craft | Algonac MI | AC, J, P, Q, V | 233 |
| Chris-Franklin Manufacturing | Seattle WA | J | 20 |
| Chrysler Corp. | Detroit MI | GT, GU | 1,038 |
| Cryer & Sons | Oakland CA | APc | 4 |
| Colberg Boat Works | Stockton CA | ARS, ATR, PCS, YMS | 25 |
| Commercial Iron Works | Portland OR | AM, AN, ATF, LCI, LCS, PC, YT | 187 |
| Consolidated Shipbuilding | Morris Heights NY | PC, ST, YT, DPC | 95 |
| Continental Shipbuilding | Brooklyn NY | ST | 6 |
| Cornwall Shipbuilding | Cornwall Landing NY | BK | 300 |
| Cotton Shipbuilding | Port Townsend WA | BCS, BSP | 24 |
| Dachel-Carter Shipbuilding | Benton Harbor MI |