| Name | Exchange | Symbol | Last trade | Change | Mkt cap | |
| S&S Public Relations, Inc. | Private | |||||
| CMGRP, Inc. | Private | |||||
| Fleishman-Hillard Inc. | Private | |||||
| Waggener Edstrom Worldwide, Inc. | Private | |||||
| Deveney Communication Consulting, L.L.C. | Private | |||||
| The Devon Group Public Relations | Private | |||||
| Dan Klores Communications, Inc. | Private | |||||
| Strat@comm LLC | Private | |||||
| RBB Public Relations, LLC | Private | |||||
| Manning Selvage & Lee | Private | |||||
| FD Americas Public Affairs | Private |