| Alameda Tank Co | 213-582-9024 | 8621 S Alameda St | Los Angeles | CA | 90002 |
| Alco Steel Fabricators | 213-747-1442 | 810 E-14th | Los Angeles | CA | 90071 |
| All Steel Manufacturing Corp | 213-589-3358 | 6000 Wilmington Ave | Los Angeles | CA | 90001 |
| Allied Steel Co Inc | 213-750-1141 | 8705 Crocker St | Los Angeles | CA | 90003 |
| Amco Steel | 213-261-4744 | 3535 Fowler St | Los Angeles | CA | 90063 |
| Ameron Fabrication Products Div | 213-357-6740 | 4635 Firestone Blvd | South Gate | CA | 90280 |
| Anvil Iron | 213-770-2121 | 137 W 168th St | Gardena | CA | 90248 |
| Balboa Steel | 213-588-8126 | 2458 E-54th | Huntington Park | CA | 90255 |
| Best Iron Co | 213-775-3005 | 1037 251st St | Harbor City | CA | 90710 |
| Cal State Steel Corp | 213-750-4338 | 8800 Mettler Ave | Los Angeles | CA | 90003 |
| Capitol Steel Fabricators Inc | 213-721-5460 | 3565 Greenwood Ave | Los Angeles | CA | 90066 |
| Chisolm Mechancial Inc Office | 213-267-0068 | 4379 Sheila St | Los Angeles | CA | 90023 |
| Colonial Ornamental | 213-587-4200 | 2100 Laura Ave | Huntington Park | CA | 90255 |
| Consolidated Fabricators Corp | 213-586-4545 | 4848 S Santa Fe Ave | Los Angeles | CA | 90058 |
| Creative Steel Fabrication Inc | 213-357-6868 | 5437 Tweedy Blvd | South Gate | CA | 90280 |
| Custom Architectural Products | 213-254-6708 | 850 Colorado Blvd | Los Angeles | CA | 90041 |
| Distributors Unlimited | 213-721-0636 | 1205 Date St | Montebello | CA | 90640 |
| Eight Point Trailer Corp | 213-266-1910 | 5103 Telegraph Rd | Los Angeles | CA | 90022 |
| Helash John Steel Construction | 213-636-1713 | 15939 Illinois Ave | Paramount | CA | 90723 |
| Housing For All | 213-277-7755 | 1862 E 55th St | Los Angeles | CA | 90058 |
| Industrial Repair & Fabricating | 213-728-5660 | 6139 Southside Dr | Los Angeles | CA | 90022 |
| J & M Steel | 213-887-8211 | 3565 Greenwood Ave | Los Angeles | CA | 90040 |
| J C Fabrication | 213-257-7317 | 3371 Verdugo Rd | Los Angeles | CA | 90065 |
| Mahl Steel Co | 213-589-3341 | 3081 E Slauson Ave | Huntington Park | CA | 90255 |
| Master Body Sales & Service | 213-564-6901 | 9824 Atlantic Ave | South Gate | CA | 90280 |
| Max Falamaki Construction | 213-734-7845 | 2209 W Jefferson Blvd | Los Angeles | CA | 90018 |
| Pacific Bellow Corp | 213-564-2448 | 5251 Tweedy Bl | South Gate | CA | 90280 |
| Pacific Coast Ironworks Inc | 213-585-1320 | 8903 Miner St | Los Angeles | CA | 90002 |
| Pacific Flexible Metal Hose Co | 213-221-5145 | 5380 Alhambra Ave | Los Angeles | CA | 90032 |
| Pert Steel Co | 213-846-3636 | 1124 E Slauson Ave | Los Angeles | CA | 90011 |
| Quality Steel Fabricators | 213-752-3208 | 8750 Mettler Ave | Los Angeles | CA | 90003 |
| Research Metal Industries Inc | 213-753-3771 | 6065 S Western Ave | Los Angeles | CA | 90047 |
| Riverton Steel Construction | 213-564-1881 | 10130 Adella Ave | South Gate | CA | 90280 |
| Star Iron | 213-588-3171 | 5832 Holmes Ave | Los Angeles | CA | 90001 |
| Supreme Fabricators Inc | 213-583-8944 | 2549 E 53rd St | Huntington Park | CA | 90255 |
| Techno Cut Industrial Group | 213-264-6464 | 2951 S Sunol Dr | Vernon | CA | 90023 |
| Tomax Fabrication Ltd | 213-283-8491 | 5449 Peck Rd | Arcadia | CA | 91006 |
| United Metal Fabricators | 213-666-8801 | 1929 Blake Ave | Los Angeles | CA | 90039 |
| Washington Ornamental Iron Works Inc | 213-321-8373 | 17926 S Broadway St | Gardena | CA | 90248 |
