| AAM |
| AutoBeat Daily |
| Behr America, Inc. |
| Bianchi Public Relations |
| BorgWarner Inc. |
| Center for Automotive Research (CAR) |
| Christina McKenna Communication Strategies |
| Communica |
| Coyne Public Relations |
| Coyne Public Relations |
| Dana Holding Corporation |
| Delphi Corporation |
| Delphi Corporation |
| Eaton Corporation |
| Eaton Corporation |
| Eisbrenner Public Relations |
| EWI Worldwide |
| EWI Worldwide |
| EWI Worldwide |
| Franco Public Relations Group |
| GKN Sinter Metals |
| Inteva Products |
| Johnson Controls, Inc. |
| Johnson Controls, Inc. |
| Magna International, Inc. |
| McDonald Automotive Communications |
| MERA |
| Polk |
| PRIME Research |
| Quell Marketing and Public Relations |
| Starrconstand |
| T Systems North America |
| The Millerschin Group |
| TI Automotive |
| Toyota Motor Sales, USA |
| Valeo Inc. |
| Weber Shandwick Worldwide |
| Yazaki North America, Inc. |