| Business | Phone |
| Advanced Tech Supply Inc 21032 Devonshire St # 203, Chatsworth 91311 | (818) 576-0700 |
| Ontic Engineering 20360 Plummer St, Chatsworth 91311 | (818) 678-6555 |
| Aircraft Cleaning Svc 20200 Labrador St, Chatsworth 91311 | (818) 773-7530 |
| Jacon Aircraft Supply Co Inc 9539 Vassar Ave, Chatsworth 91311 | (818) 700-2901 |