| Boca Research | http://www.bocaresearch.com |
| Cardinal | http://www.cardtech.com |
| Connect Service Riedlbauer GmbH | http://www.riedlbauer.de |
| Creatix | http://www.creatix.de |
| Dr. Neuhaus | http://www.neuhaus.de |
| DTC Data Technology | http://www.datatechnology.com |
| Elsa | http://www.elsa.de |
| Gebacom | http://www.gebacom.de |
| Hayes | http://www.hayes.com |
| Microcom | http://www.microcom.com |
| Motorola Modems | http://www.mot.com/modems/ |
| Multiwave Innovations | http://www.multiwave.com |
| Philips PC & Add On | http://www.pc.be.philips.com |
| Rockwell Semiconductor Systems | http://www.nb.rockwell.com |
| Spiderman | http://www.spiderman.ch |
| Supra (Diamond) | http://www.supra.com |
| Telebit | http://www.itk-intl.com |
| Telelink | http://www.telelink.ch |
| TKR | http://www.tkr.de |
| U.S. Robotics | http://www.3com.de |
| Zoom | http://www.zoomtel.com |
| Zyxel | http://www.zyxel.com |