| Business | Phone |
| Alpha Hydraulic Machinery Po Box 9520, Phoenix 85068 | (602) 363-4049 |
| Open Loop Energy Inc New Mount Phoenix 85009 | (602) 272-6596 |
| Hopper's Hydraulics 4020 Grand Ave # 19, Phoenix 85019 | (602) 249-2886 |
| Hydraulic Controls Inc 214 N 43rd Ave, Phoenix 85009 | (602) 278-6088 |
| Hydraulic Express Inc 1618 W Dunlap Ave, Phoenix 85021 | (602) 550-1166 |