| Business | Phone |
| Aftermarket Research Inst 512 Stevens Dr # A, King Of Prussia 19406 | (610) 992-9838 |
| Stemcell Therapeutics 1008 W 9th Ave, King Of Prussia 19406 | (610) 265-7676 |
| Schweitzer Engineering Lab 625 Clark Ave, King Of Prussia 19406 | (610) 992-2434 |