A total of 1,021 sub chasers (PC, SC, PCE and PCS) were built by 74 boatyards. The PCs and PCEs were built of steel, with lengths of 173 ft and 180 ft, respectively, while the SCs and PCSs were wood, with lengths of 110 ft and 136 ft, respectively. Many of these boats were transferred to Britain, France, the USSR and numerous other countries. Little is known about their disposition: any information will be welcomed.
| Type | # | Name | Shipbuilder | Location | Tons | FY | Delivery | Disposition |
| SC | 449 | Luders Marine | Stamford CT | 136 | 39 | Sep-40 | ||
| SC | 450 | American Car & Foundry | Wilmington DE | 136 | 39 | May-40 | ||
| PC | 451 | Defoe Shipbuilding | Bay City MI | 463 | 39 | Aug-40 | ||
| PC | 452 | Castine | Defoe Shipbuilding | Bay City MI | 463 | 39 | Jul-43 | Later Castine (IX 211), struck 1946 |
| SC | 453 | Air Avocet | Fisher Boatworks | Detroit MI | 136 | 39 | Aug-41 | To Haiti as 16 Aout 1946 |
| SC | 454 | Arlis | Robert Jacob | City Island NY |
140 |
1915 | Acquired 1940, reclassified as "Impetuous" (PYc 46) 1943, sold 1945 | |
| SC | 455 | Katoora | Herreshoff Manufacturing | Bristol RI |
83 |
1930 | Acquired 1940 for $1, reclassified as "Patriot" (PYc 47) 1943, resold 1945 to her original owner for $1 | |
| SC | 456 | Onwego | Unknown | Unknown |
110 |
1931 | Acquired 1940, reclassified as "Persistant" (PYc 48) 1943, sold 1945 | |
| SC | 457 | Trouper | Unknown | Unknown | Acquired 1940 | |||
| SC | 458 | Retort | Lawley & Sons, George | Neponset MA |
150 |
1923 | Acquired 1940, reclassified as "Retort" (PYc 49) 1943, sold 1945 | |
| SC | 459 | Ohio | Newport News Shipbuilding | Newport News VA |
565 |
1920 | Acquired 1941 as "Turquoise" (SC 459) but immediately reclassified as PY 18, to Ecuador 1944 as "Nueve de Octobre", later "Esmereldas", wrecked and lost 1953 | |
| SC | 460 | Elda | Consolidated Shipbuilding | Morris Heights NY |
380 |
1930 | Acquired 1940, reclassified as "Sturdy" (PYc 50) 1943, sold 1945 | |
| PC | 461 | Bluffton | Lawley & Sons, George | Neponset MA | 463 | 40 | Mar-42 | |
| PC | 462 | Lawley & Sons, George | Neponset MA | 463 | 40 | Apr-42 | ||
| PC | 463 | Lawley & Sons, George | Neponset MA | 463 | 40 | Apr-42 | ||
| PC | 464 | Lawley & Sons, George | Neponset MA | 463 | 40 | May-42 | ||
| PC | 465 | Paragould | Lawley & Sons, George | Neponset MA | 463 | 40 | May-42 | To Venezuela 1960 as Pulpo |
| PC | 466 | Carmi | Lawley & Sons, George | Neponset MA | 463 | 40 | Jun-42 | |
| PC | 467 | Lawley & Sons, George | Neponset MA | 463 | 40 | Jun-42 | To Norway | |
| PC | 468 | Lawley & Sons, George | Neponset MA | 463 | 40 | Jul-42 | To Nigeria as Ogoja | |
| PC | 469 | Lawley & Sons, George | Neponset MA | 463 | 40 | Jul-42 | Later PCC | |
| PC | 470 | Antigo | Lawley & Sons, George | Neponset MA | 463 | 40 | Jul-42 | |
| PC | 471 | Defoe Shipbuilding | Neponset MA | 463 | 40 | Nov-41 | To France as Eveille | |
| PC | 472 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Dec-41 | To France as Ruse | |
| PC | 473 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Dec-41 | To France as Ardent | |
| PC | 474 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Feb-42 | To France as Indiscret | |
| PC | 475 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Feb-42 | To France as Resolu | |
| PC | 476 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Mar-42 | ||
| PC | 477 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Mar-42 | ||
| PC | 478 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Apr-42 | ||
| PC | 479 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Apr-42 | ||
| PC | 480 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Apr-42 | To France as Emporte | |
| PC | 481 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Apr-42 | To France as Effronte | |
| PC | 482 | Defoe Shipbuilding | Bay City MI | 463 | 40 | May-42 | To France as Enjoue | |
| PC | 483 | Rolla | Consolidated Shipbuilding | Morris Heights NY | 463 | 40 | Mar-42 | To Venezuela 1960 |
| PC | 484 | Cooperstown | Consolidated Shipbuilding | Morris Heights NY | 463 | 40 | Apr-42 | To Venezuela 1960 |
| PC | 485 | Consolidated Shipbuilding | Morris Heights NY | 463 | 40 | Apr-42 | To Korea | |
| PC | 486 | Jasper | Consolidated Shipbuilding | Morris Heights NY | 463 | 40 | May-42 | |
| PC | 487 | Larchmont | Consolidated Shipbuilding | Morris Heights NY | 463 | 40 | Jun-42 | To Venezuela 1960 |
| PC | 488 | Eureka | Sullivan Drydock & Repair | Brooklyn NY | 463 | 40 | Aug-42 | Later IX 221 |
| PC | 489 | Sullivan Drydock & Repair | Brooklyn NY | 463 | 40 | Jul-42 | ||
| PC | 490 | Dravo Corp. | Pittsburgh PA | 463 | 40 | May-42 | To China | |
| PC | 491 | Dravo Corp. | Pittsburgh PA | 463 | 40 | Apr-42 | ||
| PC | 492 | Dravo Corp. | Pittsburgh PA | 463 | 40 | May-42 | To China | |
| PC | 493 | Dravo Corp. | Pittsburgh PA | 463 | 40 | May-42 | ||
| PC | 494 | Dravo Corp. | Pittsburgh PA | 463 | 40 | May-42 | ||
| PC | 495 | Dravo Corp. | Pittsburgh PA | 463 | 40 | Apr-42 | To Thailand | |
| PC | 496 | Leathem D. Smith Shipbuilding | Sturgeon Bay WI | 463 | 40 | Feb-42 | Lost Apr-43 | |
| SC | 497 | Westergard Boat Works | Rockport TX | 136 | 40 | Apr-42 | To France 1944 | |
| SC | 498 | Westergard Boat Works | Rockport TX | 136 | 40 | Apr-42 | To France 1944 | |
| SC | 499 | Fisher Boatworks | Detroit MI | 136 | 40 | Mar-42 | To US Coast Guard 1945 | |
| SC | 500 | Fisher Boatworks | Detroit MI | 136 | 40 | Mar-42 | To the USSR 1945 | |
| SC | 501 | Racer | Seabrook Yacht | Seabrook TX | 136 | 40 | Apr-42 | Later IX 100 |
| SC | 502 | Seabrook Yacht | Seabrook TX | 136 | 40 | Jun-42 | ||
| SC | 503 | Rice Brothers | East Boothbay ME | 136 | 40 | Apr-42 | To France 1944 | |
| SC | 504 | Rice Brothers | East Boothbay ME | 136 | 40 | Apr-42 | ||
| SC | 505 | Luders Marine | Stamford CT | 136 | 40 | Apr-42 | ||
| SC | 506 | Luders Marine | Stamford CT | 136 | 40 | Apr-42 | To France 1944 | |
| SC | 507 | Mathis Yacht Building | Camden NJ | 136 | 40 | Jan-42 | To France 1944 | |
| SC | 508 | Mathis Yacht Building | Camden NJ | 136 | 40 | Mar-42 | To France 1944 | |
| SC | 509 | Vara | Herreshoff Manufacturing | Bristol RI |
190 |
1929 | Acquired 1940, redesignated "Valiant" (PYc 51) 1943, sold 1945 | |
| SC | 510 | Sybarita | Acquired 1940, ex YP 105 | |||||
| SC | 511 | American Cruiser | Detroit MI | 136 | 40 | Jun-42 | To US Coast Guard 1945 | |
| SC | 512 | American Cruiser | Detroit MI | 136 | 40 | Jul-42 | To US Coast Guard 1945 | |
| SC | 513 | Quincy Adams Yacht Yard | Quincy MA | 136 | 40 | Mar-42 | ||
| SC | 514 | Quincy Adams Yacht Yard | Quincy MA | 136 | 40 | Apr-42 | ||
| SC | 515 | Elizabeth City Shipyard | Elizabeth City NC | 136 | 40 | Apr-42 | To France 1944 | |
| SC | 516 | Elizabeth City Shipyard | Elizabeth City NC | 136 | 40 | May-42 | To France 1944 | |
| SC | 517 | Elizabeth City Shipyard | Elizabeth City NC | 136 | 40 | May-42 | To France 1944 | |
| SC | 518 | Elizabeth City Shipyard | Elizabeth City NC | 136 | 40 | May-42 | Destroyed 1948 | |
| SC | 519 | Vinyard Shipbuilding | Milford DE | 136 | 40 | Apr-42 | To France 1944 | |
| SC | 520 | Vinyard Shipbuilding | Milford DE | 136 | 40 | May-42 | ||
| SC | 521 | Annapolis Yacht Yard | Annapolis MD | 136 | 40 | Apr-42 | Lost Oct-45 | |
| SC | 522 | Annapolis Yacht Yard | Annapolis MD | 136 | 40 | May-42 | To France 1944 | |
| SC | 523 | Consolidated Shipbuilding | Morris Heights NY | 40 | Nov-40 | Later YP 77, lost Apr-42 | ||
| SC | 524 | Mathis Yacht Building | Camden NJ | 136 | 40 | Apr-42 | To France 1944 | |
| SC | 525 | Mathis Yacht Building | Camden NJ | 136 | 40 | Apr-42 | To France 1944 | |
| SC | 526 | Mathis Yacht Building | Camden NJ | 136 | 40 | May-42 | To France 1944 | |
| SC | 527 | Mathis Yacht Building | Camden NJ | 136 | 40 | May-42 | ||
| SC | 528 | Mathis Yacht Building | Camden NJ | 136 | 40 | Jun-42 | ||
| SC | 529 | Mathis Yacht Building | Camden NJ | 136 | 40 | Jun-42 | To France 1944 | |
| SC | 530 | Westergard Boat Works | Rockport TX | 136 | 40 | May-42 | To France 1944 | |
| SC | 531 | Westergard Boat Works | Rockport TX | 136 | 40 | May-42 | ||
| SC | 532 | Luders Marine | Stamford CT | 136 | 40 | May-42 | To France 1944 | |
| SC | 533 | Luders Marine | Stamford CT | 136 | 40 | Jun-42 | To France 1944 | |
| SC | 534 | Luders Marine | Stamford CT | 136 | 40 | Jul-42 | To France 1944 | |
| SC | 535 | Luders Marine | Stamford CT | 136 | 40 | Jul-42 | To France 1944 | |
| SC | 536 | Petersen, Julius | Nyack NY | 136 | 40 | Apr-42 | To US Coast Guard 1945 | |
| SC | 537 | Petersen, Julius | Nyack NY | 136 | 40 | Apr-42 | To the USSR 1945 | |
| SC | 538 | Petersen, Julius | Nyack NY | 136 | 40 | May-42 | To the USSR 1945 | |
| SC | 539 | Petersen, Julius | Nyack NY | 136 | 40 | May-42 | To US Coast Guard 1945 | |
| SC | 540 | Robinson Marine Construction | Benton Harbor MI | 136 | 40 | Apr-42 | To US Coast Guard 1945 | |
| SC | 541 | Robinson Marine Construction | Benton Harbor MI | 136 | 40 | May-42 | To US Coast Guard 1945 | |
| PC | 542 | Defoe Shipbuilding | Bay City MI | 463 | 40 | May-42 | To France 1944 | |
| PC | 543 | Defoe Shipbuilding | Bay City MI | 463 | 40 | May-42 | To France 1944 | |
| PC | 544 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Jun-42 | To Brazil 1945 | |
| PC | 545 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Jun-42 | To France 1944 | |
| PC | 546 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Jul-42 | To France 1944 | |
| PC | 547 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Jul-42 | To Brazil 1945 | |
| PC | 548 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Aug-42 | ||
| PC | 549 | Defoe Shipbuilding | Bay City MI | 463 | 40 | Aug-42 | ||
| PC | 550 | Leathem D. Smith Shipbuilding | Sturgeon Bay WI | 463 | 40 | May-42 | To France 1944 | |
| PC | 551 | Leathem D. Smith Shipbuilding | Sturgeon Bay WI | 463 | 40 | May-42 | To France 1944 | |
| PC | 552 | Sullivan Drydock & Repair | Brooklyn NY | 463 | 40 | Jul-42 | ||
| PC | 553 | Malone | Sullivan Drydock & Repair | Brooklyn NY | 463 | 40 | Oct-42 | |
| PC | 554 | Sullivan Drydock & Repair | Brooklyn NY | 463 | 40 | Sep-42 | To Brazil 1945 | |
| PC | 555 | Sullivan Drydock & Repair | Brooklyn NY | 463 | 40 | Feb-43 | ||
| PC | 556 | Luders Marine | Stamford CT | 463 | 40 | Sep-42 | To France 1944 | |
| PC | 557 | Luders Marine | Stamford CT | 463 | 40 | Sep-42 | To France 1944 | |
| PC | 558 | Luders Marine | Stamford CT | 463 | 40 | Nov-42 | Lost Sep-44 | |
| PC | 559 | JeffBoat | Jeffersonville IN | 463 | 40 | May-42 | To France 1944 | |
| PC | 560 | Oberlin | JeffBoat | Jeffersonville IN | 463 | 40 | Jun-42 | |
| PC | 561 | JeffBoat | Jeffersonville IN | 463 | 40 | Jul-42 | To Brazil 1945 | |
| PC | 562 | JeffBoat | Jeffersonville IN | 463 | 40 | Aug-42 | To France 1944 | |
| PC | 563 | Consolidated Shipbuilding | Morris Heights NY | 463 | 40 | Jun-42 | ||
| PC | 564 | Chadron | Consolidated Shipbuilding | Morris Heights NY | 463 | 40 | Jul-42 | To Korea |
| PC | 565 | Gilmer | Brown Shipbuilding | Houston TX | 463 | 40 | May-42 | To Venezuela 1960 |
| PC | 566 | Honesdale | Brown Shipbuilding | Houston TX | 463 | 40 | Jun-42 | To Venezuela 1960 |
| PC | 567 | Riverhead | Brown Shipbuilding | Houston TX | 463 | 40 | Jun-42 | To US Air Force 1963 |
| PC | 568 | Altus | Brown Shipbuilding | Houston TX | 463 | 40 | Jul-42 | To US Air Force 1963 |
| PC | 569 | Petosky | Albina Engine & Machinery | Portland OR | 463 | 40 | 8-May-42 | |
| PC | 570 | Albina Engine & Machinery | Portland OR | 463 | 40 | 18-Apr-42 | To Thailand | |
| PC | 571 | Anoka | Albina Engine & Machinery | Portland OR | 463 | 40 | 22-May-42 | |
| PC | 572 | Tooele | Albina Engine & Machinery | Portland OR | 463 | 40 | 17-Jun-42 | To Venezuela 1960 |
| PC | 573 | Dravo Corp. | Pittsburgh PA | 463 | 40 | Jun-42 | ||
| PC | 574 | Dravo Corp. | Wilmington DE | 463 | 40 | Jul-42 | ||
| PC | 575 | Dravo Corp. | Wilmington DE | 463 | 40 | Aug-42 | To Thailand | |
| PC | 576 | Dravo Corp. | Wilmington DE | 463 | 40 | Sep-42 | ||
| PC | 577 | Dravo Corp. | Wilmington DE | 463 | 40 | Oct-42 | Lost Nov-48 | |
| PC | 578 | Albina Engine & Machinery | Portland OR | 463 | 40 | 13-Jul-42 | ||
| PC | 579 | Wapakoneta | Albina Engine & Machinery | Portland OR | 463 | 40 | 24-Aug-42 | |
| PC | 580 | Malvern | Albina Engine & Machinery | Portland OR | 463 | 40 | 26-Sep-42 | To Indonesia 1960 |