| Business | Phone |
| Winco Fluid Power 2955 Terwood Rd # B, Willow Grove 19090 | (215) 657-4940 |
| Yarway Corp 2405 Maryland Rd, Willow Grove 19090 | (215) 882-6000 |
| Circle Valve Technologies Inc 726 Fitzwatertown Rd, Willow Grove 19090 | (215) 657-1203 |
| Penn Valve & Fitting Co 2440 Maryland Rd, Willow Grove 19090 | (215) 657-2900 |