| Business | Phone |
| Analytic Bio-Chemistries Inc 1680 Loretta Ave # D, Langhorne 19053 | (215) 322-9210 |
| Health Network Laboratories 582 Middletown Blvd # B22, Langhorne 19047 | (215) 702-8107 |
| Oxford Valley Diagnostic Center 330 Middletown Blvd, Langhorne 19047 | (215) 741-6369 |