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| Access Profibus |   | |
| ACP&D Limited |   | ||
| Action Instruments, Inc. |   | ||
| Adaptive Micro Systems, Inc. |   | ||
| Applicom International |   | ||
| Axiomatic Technologies Corp. |   | ||
| Beckhoff Industrie Elektronik |   | ||
| Belden Inc. |   | ||
| Busware Direct |   | ||
| Eurotherm Drives, Inc. |   | ||
| Control Techniques |   | ||
| DataLink Technologies Group, Inc. |   | ||
| Escort Memory Systems - EMS |   | ||
| Entrelec Inc. |   | ||
| ESR Pollmeier GmbH |   | ||
| Festo Corporation |   | ||
| Hardy Instruments Inc |   | ||
| Heidenhain Corporation |   | ||
| Industrial Control Communications |   | ||
| Lutze Inc. |   | ||
| Moeller Electric Corporation USA |   | ||
| DS GmbH |   | ||
| National Instruments |   | ||
| Numatics, Inc. |   | ||
| Parijat Controlware, Inc. |   | ||
| PEP Modular Computers, Inc. |   | ||
| FRABA INC. |   | ||
| PROFIBUS International |   | ||
| ProSoft Technology, Inc. |   | ||
| Sierra Monitor Corporation - SMC |   | ||
| SoftPLC Corporation |   | ||
| Synergetic Micro Systems |   | ||
| Weed Instrument |   | ||
| Siemens AG |   | ||
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