| A² Networks |
| A&B Groep |
| ACAL Nederland BV |
| Advitronics |
| AEG Eurolec BV |
| Analysis Networking |
| Array Publications |
| ATIS Telecommunicatie B.V. |
| Auditel Telematica Consultants |
| AVM |
| AXIANS |
| Belcompany |
| BusinessCom |
| Comstor |
| DAMOVO Nederland |
| EtherConnect |
| Ericsson Northern Europe |
| Expericom BV |
| Fastfiber |
| Flying Bytes |
| Funkwerk Enterprise Communications |
| Hollandse Telecommunicatie Maatschappij |
| Hutronic |
| INTRATEL/TRIMAXX |
| Interoute |
| KPN |
| Livingston |
| McDos |
| Mobisec / Nokia |
| Multi-Made BV |
| NEC Philips Unified Solutions |
| NiVo network architects |
| Priority Telecom |
| RVS Networks |
| Secom CT / ShoreTel |
| Simac ICT Nederland |
| Stupers Rosmalen (Panasonic) |
| T.M.T. LG |
| Televersal |
| Tiptel BV |
| TNO Informatie- en communicatietechnologie |
| BV Twentsche Kabelfabriek |
| VeiligMobiel BV |
| Vodafone |
| VRC Telecom |
| Westcon |
