| Business | Phone |
| 4-D Engineering Co 1635 W 144th St, Gardena 90247 | (310) 532-2384 |
| Altena Machine Builders 16150 S Maple Ave, Gardena 90248 | (310) 715-6574 |
| Glenwood Marine Equipment 1627 W El Segundo Blvd, Gardena 90249 | (323) 757-3141 |
| Glenwood Marine 1627 W El Segundo Blvd, Gardena 90249 | (323) 757-3141 |