Pennsylvania
| Company | Category | Area | Address | Web | Contact person | |
| PLEXUS VENTURES LLC | Pharmaceutical Consultants | Pennsylvania | 1701 WATERFORD WAY, AMBLER, Montgomery, Pennsylvania, 19002-3157, USA | www.plexusventures.com | - | Robert Moran |
| PLEXXUS INTERNATIONAL LTD | Nonclassified Establishments | Pennsylvania | 501 WASHINGTON LN, JENKINTOWN, Montgomery, Pennsylvania, 19046-3145, USA | - | - | - |
| PLEXXUS NETWORKING SVC INC | Services Nec | Pennsylvania | 501 WASHINGTON LN, JENKINTOWN, Montgomery, Pennsylvania, 19046-3145, USA | - | - | - |