| Business | Phone |
| Ace Machine Co 1000 40th Ave, Oakland 94601 | (510) 536-5400 |
| Anderson Manufacturing Co 750 107th Ave, Oakland 94603 | (510) 568-3816 |
| Artisan Manufacturing 8450 Earhart Rd, Oakland 94621 | (510) 562-9133 |
| B-C-H Manufacturer Co 10012 Denny St, Oakland 94603 | (510) 569-6586 |
| Bay Area Cylinder Head 732 E 12th St, Oakland 94606 | (510) 832-1812 |
| Bay City Iron Works Inc 2897 Chapman St, Oakland 94601 | (510) 536-4041 |
| Columbia Machine Works 934 75th Ave, Oakland 94621 | (510) 568-0808 |
| Crawford Machine 2430 Poplar St, Oakland 94607 | (510) 465-1007 |
| Delcon Industries Inc 4723 Tidewater Ave # G, Oakland 94601 | (510) 532-2050 |
| Diamond Tool & Die Inc 508 29th Ave, Oakland 94601 | (510) 534-7050 |
| Excelsweld Usa 1231 16th Ave, Oakland 94606 | (510) 534-3303 |
| Fab-Mach Inc 800 100th Ave, Oakland 94603 | (510) 635-5686 |
| Gonsel's Machine Shop 8710 G St, Oakland 94621 | (510) 569-8086 |
| Hafer Tool Co Inc 780 105th Ave, Oakland 94603 | (510) 632-7737 |
| Horspool & Romine Manufacturer Co 5850 Marshall St, Oakland 94608 | (510) 652-1844 |
| Hund Welding & Machining 939 87th Ave, Oakland 94621 | (510) 632-8880 |
| Kramer's Machine Shop Inc 1736 16th St, Oakland 94607 | (510) 836-2507 |
| Mc Neill Manufacturing 3014 Chapman St, Oakland 94601 | (510) 533-3747 |
| Mean Machine 2791 Wood St, Oakland 94607 | (510) 465-9475 |
| Mun Manufacturing Co 932 37th Ave, Oakland 94601 | (510) 536-3529 |
| Oakland Machine Works 561 4th St, Oakland 94607 | (510) 893-7644 |
| P & B Precision Products 721 77th Ave, Oakland 94621 | (510) 569-7500 |
| P K Engineering 4430 Coliseum Way, Oakland 94601 | (510) 436-6637 |
| Pro-West Machine Inc 9850 Kitty Ln, Oakland 94603 | (510) 632-3414 |
| Risso Machine Shop 8310 Amelia St, Oakland 94621 | (510) 569-2145 |
| T & P Machine Shop Inc 760 98th Ave, Oakland 94603 | (510) 569-0900 |
| Ron's Machine Shop Inc 3421 Hollis St, Oakland 94608 | (510) 658-5002 |
| Smith Machine & Quandary 1010 44th Ave, Oakland 94601 | (510) 436-7713 |
| Stainless Polishing Co 885 50th Ave, Oakland 94601 | (510) 261-5557 |
| Techsmith 2324 Adeline St, Oakland 94607 | (510) 444-0937 |
| Wagner & Pigozzi 465 25th St, Oakland 94612 | (510) 451-7707 |