| Hydronorma |
| Flutec |
| Rexroth-Hydronorma |
| Double A |
| Hydac |
| Ihne & Tesch, Keller |
| Vcikers |
| Atkomatic |
| Deublin |
| Cutler-Hammer |
| Numatics |
| Cumberland |
| Legris |
| Schultz |
| Norgren |
| Herion |
| Burkert |
| Application Engineering Company (AEC)-Nelmor |
| Humphrey |
| Ross Controls |
| Atos |
| Application Engineering Company (AEC) |
| Brook Crompton |
| Husky |
| Turck |
| Fema |
| Moog Hydrolux |
| Milwaukee Cylinder |
| Magnatrol |
| Hydrolux |
| Tokimec-Vickers |
| Versa |
| Racine |
| ARO/Ingersoll-Rand |
| Pall Corporation |
| Yuken |
| Rika |
| Maxitrol |
| PIC Gauges |
| Ambac Fluid Power |
