| Business | Phone |
| Bear's Vw Machine 241 W 35th St # E, National City 91950 | (619) 691-8385 |
| Proto Machining 105 W 35th St # L, National City 91950 | (619) 476-7721 |
| Motor Works 1625 Coolidge Ave, National City 91950 | (619) 233-8875 |
| G V Industries Inc 1346 Cleveland Ave, National City 91950 | (619) 474-3013 |
| Goulet Industries 340 W 26th St # J, National City 91950 | (619) 336-1999 |
| Machine Shop & Fabricators 1925 Cleveland Ave, National City 91950 | (619) 474-7706 |