United Concrete & Pipe
Long Beach CA
United Concrete & Pipe established a Steel Division in Long Beach, to build coasters, but it appears to have got going too late to have time to produce anything more than its initial run of 12 FS boats.
| O/N | Name | Customer | Type | LDT | LOA | Built | Notes | |
| FS-387 | US Army | freighter | 560 | 176 | May 1944 | |||
| FS-388 | US Army | freighter | 560 | 176 | May 1944 | USCG-manned | ||
| FS-389 | US Army | freighter | 560 | 176 | June 1944 | to the Philippines as Neptuno | ||
| FS-390 | US Army | freighter | 560 | 176 | July 1944 | to USN 1951 as Deimos (AKL-40), to Korea 1951, scrapped 1960 | ||
| FS-391 | US Army | freighter | 560 | 176 | July 1944 | to USN 1947 as Hewell (AG-145), AKL-14, sold 1960 | ||
| FS-392 | US Army | freighter | 560 | 176 | Aug 1944 | USCG-manned, retained by USA | ||
| FS-393 | US Army | freighter | 560 | 176 | Sep 1944 | to the Philippines as Basilan | ||
| FS-546 | US Army | freighter | 560 | 176 | Sep 1944 | to China as Hai Who | ||
| FS-547 | US Army | freighter | 560 | 176 | Oct 1944 | to USN 1951 as Renate (AKL-42), to Korea 1951, scrapped 1960 | ||
| FS-548 | US Army | freighter | 560 | 176 | Nov 1944 | to USN 1950 as AKL-32, struck 1961, Tangier Island | ||
| FS-549 | US Army | freighter | 560 | 176 | Nov 1944 | to the Philippines as Corregidor | ||
| FS-550 | US Army | freighter | 560 | 176 | Dec 1944 | to the Philippines as Bohol | ||
| 565268 | Tangier Island | Omega Protein | trawler | 538 | 166 | 1944 | One of the above | |
| 252331 | Alaska | RFC/PEC | trawler | 221 | 94 | 1947 | to FWS 1949, to Cal. DFG 1957, to UW 1980, sold in the 1990s, deleted 2007 | |
| 252332 | California | RFC/PEC | trawler | 221 | 94 | 1947 | sold 1949, at least through 1965 |