| Builder | EFC designs (R = requisitioned) |
| Alabama D.D. & S.B. Co., Mobile (Pinto Island), Alabama | 1001, 1039 |
| Albina Engine & Machine Works, Inc., Portland, Oregon | R, 1049 |
| Allen S.B. Co., Seattle, Washington | 1008, 1115 |
| American International S.B. Corp., Hog Island, Pennsylvania | 1022, 1024 |
| American Lumber Co., Millville, Florida | 1067 |
| American S.B. Co., Brunswick, Georgia | 1001, 1067 |
| American S.B. Co., Buffalo, New York | 1020, 1093, 1099 |
| American S.B. Co. (ex Chicago S.B. Co.), Chicago, Illinois | 1020, 1093, 1099 |
| American S.B. Co., Cleveland, Ohio | R, 1020, 1093, 1099 |
| American S.B. Co. (ex Detroit S.B. Co.), Detroit (Wyandotte), Michigan | 1020, 1093, 1099 |
| American S.B. Co., Lorain, Ohio | R, 1020, 1093, 1099 |
| American S.B. Co. (ex Superior S.B. Co.), Superior, Wisconsin | 1020, 1093, 1099 |
| American S.B. & D.D. Co., Beaufort, South Carolina | 1067 |
| Ames S.B. & D.D. Co., Seattle, Washington | R, 1080 |
| Anclote S.B. Co., Tarpon Springs, Florida | 1067 |
| Atlantic Corp., Portsmouth, New Hampshire | 1019 |
| Atlantic Gulf & Pacific Co., Brooklyn (Mill Basin), New York | 1067 |
| Babare Bros., Tacoma, Washington | 1001 |
| Baltimore D.D. & S.B. Co., Baltimore, Maryland | R, 1016, 1058, 1059 |
| Bangor Brewer S.B. Co., Bangor, Maine | 1067 |
| Bayles Shipyard, Inc., Port Jefferson, New York | 1023, 1035 |
| Beaumont S.B. & D.D. Co., Beaumont, Texas | 1001, 1109 |
| Benicia S.B. Corp., Benicia, California | 1001 |
| A. Bentley & Sons Co., Jacksonville, Florida | 1100 |
| Bethlehem S.B. Corp. (ex Union Iron Works), Alameda, California | 1032, 1047, 1057 |
| Bethlehem S.B. Corp. (ex Samuel L. Moore & Sons), Elizabethport, N.J. | 1035, 1094 |
| Bethlehem S.B. Corp. (ex Fore River S.B. Co.), Quincy, Massachusetts | 1045 |
| Bethlehem S.B. Corp. (ex Union Iron Works), San Francisco, California | 1032, 1047, 1057 |
| Bethlehem S.B. Corp., Sparrows Point, Maryland | R, 1029, 1046, 1047 |
| Bethlehem S.B. Corp. (ex Harlan & Hollingsworth Co.), Wilmington, Del. | 1031, 1046, 1094 |
| Bloxom Bros., Battery Park, Virginia | 1067 |
| A.C. Brown & Sons, Tottenville, New York | 1086 |
| Burger Boat Co., Manitowoc, Wisconsin | 1086 |
| Calais S.B. Co., Calais, Maine | 1067 |
| Carolina S.B. Co. became Geo. A. Fuller Co., below | 1037 |
| Chance Marine Construction Co., Annapolis, Maryland | 1086 |
| Ralph J. Chandler, Wilmington, California | 1001 |
| Chester S.B. Co. (later Merchant S.B. Co.), Chester, Pennsylvania | 1078 |
| Chicago S.B. Co. (later American S.B. Co.), Chicago, Illinois | R |
| Coast S.B. Co., Portland, Oregon | 1001 |
| Coastwise S.B. Co., Baltimore, Maryland | 1067 |
| Francis Cobb S.B. Co., Rockland, Maine | 1067 |
| Columbia River S.B. Corp., Portland, Oregon | R, 1013 |
| Consolidated S.B. Corp., Morris Heights, New York | 1035, 1086 |
| Continental S.B. Corp., Yonkers, New York | 1084, 1085 |
| Coos Bay S.B. Co., Marshfield, Oregon | 1001, 1003, 1114 |
| Wm. Cramp & Sons S.& E.B. Co., Philadelphia, Pennsylvania | R, 1128 |
| Crisfield S.B. Co., Crisfield, Maryland | 1067 |
| H.E. Crook Co., Baltimore, Maryland | 1067 |
| Crosby Navigation Co., Richmond, Maine | 1067, 1129 |
| Crowninshield S.B. Co., Fall River, Massachusetts | 1055 |
| Cumberland S.B. Co., South Portland, Maine | 1001, 1067, 1086 |
| Dachel Carter Boat Co., Benton Hbr, Michigan | 1086 |
| Oscar Daniels S.B. Co., Tampa, Florida | 1027 |
| Dantzler S.B. & D.D. Co., Moss Point, Mississippi | 1001 |
| Darien S.B. Co., Darien, Georgia | 1067 |
| M.M. Davis & Sons, Inc., Solomons, Maryland | 1061, 1085 |
| Detroit S.B. Co. (later American S.B. Co.), Detroit (Wyandotte), Michigan | R |
| Dierks Blodgett S.B. Co., Pascagoula, Mississippi | 1001, 1025, 1056 |
| Doullut & Williams S.B. Co., New Orleans, Louisiana | 1037 |
| Downey S.B. Corp., Milliken, Richmond Boro, New York | 1017 |
| J.F. Duthie & Co., Seattle, Washington | R, 1013, 1066 |
| Eastern Shore S.B. Corp., Sharptown, Maryland | 1086 |
| Elliott Bay S.B. Co., Seattle, Washington | 1069 |
| Federal S.B. Co., Kearny (Newark), New Jersey | 1037 |
| Feeney & Bremer Co., Tillamook, Oregon | 1001 |
| Ferro-Concrete S.B. Corp., Redondo Beach, California | No # (EFC 1190) |
| Fore River S.B. Co. (later Bethlehem S.B. Corp.), Quincy, Massachusetts | R |
| Fougner American Steel Concrete S.B. Co., Flushing Bay, New York | 1048 |
| Foundation Co., Newark, New Jersey | 1001, 1069 |
| Foundation Co., Port Huron, Michigan | 1035 |
| Freeport S.B. Co., South Freeport, Maine | 1001 |
| Geo. A. Fuller Co. (ex Carolina S.B. Co.), Wilmington, NC | 1037 |
| Fulton S.B. Co., Wilmington, California | 1001, 1003, 1114 |
| W.H. Gahagan, Inc., Arverne, New York | 1035 |
| Gibbs Gas Engine Co. of Florida, South Jacksonville, Florida | 1086 |
| Geo. A. Gilchrest, Thomaston, Maine | 1001 |
| Gildersleeve Ship Const. Corp., Gildersleeve, Connecticut | 1001 |
| Globe S.B. Co., Superior, Wisconsin | R, 1020, 1074 |
| Grant Smith-Porter Ship Co., Aberdeen, Washington | 1001 |
| Grant Smith-Porter Ship Co., St. Johns (Portland), Oregon | 1001, 1003 |
| Grays Harbor M.S. Corp., Grays Hbr, Washington | 1005, 1116 |
| Great Lakes Engineering Works, Ashtabula, Ohio | R, 1042, 1060, 1074 |
| Great Lakes Engineering Works, Ecorse, Michigan | R, 1042, 1060, 1074 |
| Richard T. Green Co., Chelsea, Massachusetts | 1067 |
| Groton Iron Works, Groton, Connecticut | 1015, 1016 |
| Groton Iron Works, Noank, Connecticut | 1001 |
| Gulf Coast Transportation Co., New Orleans, Louisiana | 1067 |
| Hammond Lumber Co., Eureka, California | 1001 |
| Hampton Roads S.B. & D.D. Corp., Norfolk, Virginia | 1026 |
| Hanlon D.D. & S.B. Co., Oakland, California | R, 1043 |
| Harlan & Hollingsworth Co. (later Bethlehem S.B. Corp.), Wilmington, Del. | R |
| Heldenfels Bros, Rockport, Texas | 1001 |
| Hodge Ship Co., Moss Point, Mississippi | 1001 |
| Housatonic S.B. Co., Stratford, Connecticut | 1001 |
| Houston S.B. Co., Houston, Texas | 1067 |
| International S.B. & Marine Engineering Corp., Nyack, New York | 1086 |
| Jahncke S.B. Co., Madisonville, Louisiana | 1001, 1069 |
| Japan: Asahi S.Y., Asahi | 1118 |
| Japan: Asano S.Y., Tsurumi | 1124 |
| Japan: Fujinagata S.Y., Fujinagata | 1119 |
| Japan: Harima S.Y., Aioi | R, 1120 |
| Japan: Harima S.Y., Toba | 1121 |
| Japan: Ishikawajima S.B., Tokyo | 1121 |
| Japan: Kawasaki S.Y., Kobe | R, 1122 |
| Japan: Mitsubishi S.B., Nagasaki | 1126 |
| Japan: Mitsui Bussan, Uno | 1122 |
| Japan: Nitta Kisen, Osaka | 1123 |
| Japan: Osaka Iron Works, Osaka (Innoshima) | R, 1127 |
| Japan: Uchida S.Y., Kawasaki | 1126 |
| Japan: Uraga DY, Uraga | R, 1125 |
| Japan: Yokohama DY, Yokohama | 1119 |
| Johnson Iron Works, New Orleans, Louisiana | 1036 |
| Johnson Shipyards Corp., Mariners Harbor, New York | 1001, 1067, 1113 |
| Kelley-Spear Co., Bath, Maine | 1001, 1067 |
| Kendrick-Aulick-Cobb-Tucker, Tampa, Florida | 1067 |
| Kiangnan Dock & Eng. Works, Shanghai, CH | 1092 |
| Kiernan & Kern, Portland, Oregon | 1075 |
| Kingston S.B. Co., Kingston (Rondout Creek), New York | 1001 |
| Kruse & Banks Shipbuilding, North Bend, Oregon | 1001, 1003, 1114 |
| Lake & Ocean Navigation Co., Sturgeon Bay, Wisconsin | 1007 |
| Lake & Ocean S.B. Co., Cleveland, Ohio | 1035 |
| Leatham & Smith Towing & Wrecking Co., Sturgeon Bay, Wisconsin | 1086 |
| Fred T. Ley & Co., Mobile, Alabama | 1100, 1101 |
| Liberty S.B. Co., Brunswick, Georgia | 1040 |
| Liberty S.B. Co., Wilmington, North Carolina | 1070, 1100 |
| Lone Star S.B. Co., Beaumont, Texas | 1001 |
| Long Beach S.B. Co., Long Beach, California | R, 1019, 1021, 1097 |
| Los Angeles S.B. & D.D. Co., Los Angeles, California | 1013, 1133 |
| Machias Ship Const., Machias, Maine | 1067 |
| Main Iron Works, San Francisco, California | 1085 |
| Manitowoc S.B., Manitowoc, Wisconsin | R, 1042, 1044, 1074 |
| Maryland S.B., Sollers Pt, Maryland | 1001 |
| J.H. Mathis Co., Camden, New Jersey | 1086 |
| McBride & Law, Beaumont, Texas | 1001 |
| J.N. McCammon, Beaumont, Texas | 1001, 1067 |
| McDougall-Duluth Co., Duluth, Minnesota | R, 1020, 1099 |
| McEachern Ship Co., Astoria, Oregon | 1001, 1003 |
| Sidney C. McLouth, Marine City, Michigan | 1085 |
| Meacham & Babcock S.B. Co., Seattle, Washington | 1001 |
| Merchant S.B. Corp., Bristol, Pennsylvania | 1025 |
| Merchant S.B. Corp., Chester, Pennsylvania (ex Chester S.B.) | R, 1025 |
| Merrill-Stevens S.B. Corp., Jacksonville, Florida | R, 1009, 1012, 1025, 1073 |
| Merrill-Stevens S.B. Corp., Slidell, Louisiana | 1009, No # (EFC 2499-2504) |
| Midland Bridge Co., Houston, Texas | 1001, 1067 |
| Mississippi S.B. Corp., Biloxi, Mississippi | 1067 |
| Missouri Valley B. & I. Co., Quantico, Virginia | 1001 |
| Mobile S.B. Co., Mobile, Alabama | 1010, 1038, |
| Moore & Scott Iron Works (later Moore S.B. Co.), Oakland, California | R |
| Moore S.B. Co. (ex Moore & Scott Iron Works), Oakland, California | 1015, 1041 |
| Samuel L. Moore & Sons (later Bethlehem S.B. Corp.), Elizabethport, N.J. | R |
| Morey & Thomas, Jacksonville, Florida | 1001 |
| J.M. Murdock, Jacksonville, Florida | 1001 |
| Murnan S.B. Corp., Mobile (Pinto Island), Alabama | 1001 |
| Narragansett S.B. Co., Tiverton, Rhode Island | 1067 |
| Nashville Bridge Co., Nashville, TN | 1096 |
| National S.B. Co., Orange, Texas | 1006, 1056 |
| National S.B. & D.D. Co., Savannah, Georgia | 1001 |
| Neches S.B. Co., Beaumont, Texas | 1069 |
| New Jersey D.D. & Transportation Co., Elizabethport, New Jersey | 1035 |
| New Jersey S.B. (later Pusey & Jones), Gloucester City, N.J. | R |
| New York S.B. Corp., Camden, New Jersey | R, 1029, 1095, 1103 |
| Newburgh S.Y., Newburgh, New York | 1025, 1035 |
| Newcastle S.B., Damariscotta, Maine | 1067 |
| Newport News S.B. & D.D. Co., Newport News, Virginia | R, 1029, 1106 |
| Nilson & Kelez S.B. Corp., Seattle, Washington | 1001 |
| North Carolina S.B. Co., Morehead City, North Carolina | 1001 |
| Northwest Engineering Works, Green Bay, Wisconsin | 1035, 1036, 1076, 1086 |
| Northwest Steel Co., Portland, Oregon (ships fitted out by Willamette I.&S. Wks.) | R, 1013, No # (EFC 2865-71) |
| Pacific American Fisheries, Bellingham, Washington | 1065 |
| Pacific Coast S.B. Co., Suisun Bay, California | 1015 |
| Pacific Marine Constr. Co. of Calif., San Diego, California | 1100 |
| Patterson McDonald S.B. Co., Seattle, Washington | 1019, 1104 |
| Peninsula S.B. Co., Portland, Oregon | 1004 |
| Pennsylvania S.B. (later Pusey & Jones), Gloucester City, N.J. | R, 1135, 1136 |
| Pensacola S.B. Co., Pensacola, Florida | 1025 |
| Geo. J. Pilkington, Miami, Florida | 1086 |
| Providence Engineering Corp., City Is., New York | 1035 |
| Puget Sound Bridge & Dredging Co., Seattle, Washington | 1005, 1111 |
| Pusey & Jones S.B. Co., Wilmington, Delaware | R |
| Geo. F. Rodgers & Co., Astoria, Oregon | 1001 |
| Rolph S.B. Co., Rolph, Humboldt Bay, California | 1001 |
| Russell S.B. Co., Portland, Maine | 1001 |
| Saginaw S.B. Co., Saginaw, Michigan | 1020, 1074 |
| San Francisco S.B. Co., San Francisco, California | 1100, 1101 |
| Sanderson & Porter, Willapa Harbor, Raymond, Washington | 1001 |
| Sandy Point S.B. Co., Sandy Point, Maine | 1001, 1067 |
| Sawyer Shipyards Corp., Millbridge, Maine | 1067 |
| Seaborn Shipyards, Tacoma, Washington | 1001 |
| Seattle Construction & D.D. Co. (later Todd D.D. & Constr. Corp.), Seattle, Wash. | R |
| Seattle North Pacific S.B. Co., Seattle, Washington | 1015 |
| L.H. Shattuck Inc., Portsmouth, New Hampshire | 1001, 1113 |
| Ship Construction & Trading Co., Stonington, Connecticut | 1001 |
| Skinner & Eddy Corp., Seattle #1, Washington | R, 1013, 1079, 1105 |
| Skinner & Eddy Corp., Seattle #2, Washington | R, 1013, 1079, 1105 |
| Sloan Shipyards Corp., Anacortes, Washington | 1001 |
| Sloan Shipyards Corp., Olympia, Washington | 1001 |
| Smith & Terry, Inc., Bethel, Delaware | 1067 |
| Smith & Williams, Salisbury, Maryland | 1086 |
| Henry Smith & Sons Co., Baltimore, Maryland | 1001 |
| Sommarstrom S.B. Co., Columbia City, Oregon | 1001, 1003 |
| Southern D.D. & S.B. Co., Orange, Texas | 1001 |
| Southern S.B. Corp., Charleston, South Carolina | 1028 |
| Southland S.S. Co., Savannah, Georgia | 1085 |
| Southwestern S.B., San Pedro, California | 1019 |
| St. Helens S.B. Co, St. Helen's, Oregon | 1001 |
| St. Johns River Shipyard Co., Jacksonville, Florida | 1001, 1067 |
| Standard S.B. Co., Shooters Is., New York | R, 1063 |
| Standard Shipyards Co., Wiscasset, Maine | 1067 |
| G.M. Standifer Construction Corp., Portland, Oregon | 1001 |
| G.M. Standifer Construction Corp., Vancouver, Washington | 1015, 1015M, 1075 |
| Staten Island S.B. Co., Port Richmond, New York | R |
| Submarine Boat Corp., Newark, New Jersey | 1023 |
| John W. Sullivan Co., Sailors Snug Harbor, New York | 1086 |
| Sun S.B. Co., Chester, Pennsylvania | R, 1018, No # (EFC 2387-94) |
| Superior S.B. Co. (later American S.B. Co.), Superior, Wisconsin | R |
| Supple & Ballin, Portland, Oregon | 1011, 1102 |
| Tacoma S.B. Co., Tacoma, Washington | 1001 |
| Tampa Dock Co., Tampa, Florida | 1001 |
| Tampa S.B. & Engineering Co., Tampa, Florida | R |
| Chas. H. Tenney & Co., Hampton, Virginia | 1001 |
| Terry S.B. Corp., Savannah, Georgia | 1010, 1031 |
| Texas Steamship Co., Bath, Maine | R |
| Todd D.D. & Construction Corp. (ex Seattle Constr. & D.D. Co.), Tacoma, Wash. | 1014 |
| Toledo S.B. Co., Toledo, Ohio | R, 1020, 1099 |
| Traylor S.B. Corp., Cornwells Heights, Pennsylvania | 1001 |
| U.S. Maritime Corp., Brunswick, Georgia | 1001 |
| U.S. Steel S.B. Corp., San Diego, California | 1019 |
| Union Bridge & Construction Co., Morgan City, Louisiana | 1001, 1051, 1067 |
| Union Construction Co. (Union Industrial Works), Oakland, California | 1015 |
| Union Iron Works (later Bethlehem S.B. Corp.), San Francisco & Alameda, Calif. | R |
| Universal S.B. Co., Houston, Texas | 1001, 1067 |
| Universal S.B. Co., Sturgeon Bay, Wisconsin | 1055 |
| Vinyard S.B. Co., Milford, Delaware | 1086 |
| Virginia S.B. Corp., Alexandria, Virginia | 1015 |
| Ward & Pride, Miami, Florida | 1086 |
| Western Pipe & Steel Co. of Calif., San Francisco, California | 1019 |
| White Haven S.B. Co., White Haven, Maryland | 1067 |
| Whitney Bros., Superior, Wisconsin | 1035 |
| Willamette Iron & Steel Works (hulls built by Northwest Steel Co.), Portland, Ore. | R |
| Wilson S.B. Co., Astoria, Oregon | 1001 |
| Wright Shipyards, Tacoma, Washington | 1001 |
| York River S.B. Co., West Point, Virginia | 1001 |