Please contact NEN to retreive the contact details for the manufacturers.
| ID | Short name | Manufacture | Country |
| 1 | KAPSCH AT | Kapsch TrafficCom AG | AUSTRIA |
| 2 | Thales Group | Thales Group | FRANCE |
| 3 | KAPSCH SE | Kapsch TrafficCom AG | SWEDEN |
| 4 | CS | CS Systemes d’information | FRANCE |
| 5 | MAC | REGISTRATION STILL TO BE CONFIRMED BY MANUFACTURER! | – |
| 6 | Q-FREE | Q-Free ASA | NORWAY |
| 7 | YUNEX | YUNEX GmbH | GERMANY |
| 8 | THOMSON-CSF | REGISTRATION STILL TO BE CONFIRMED BY MANUFACTURER! | – |
| 9 | DENSO | Denso Corporation | JAPAN |
| 10 | MITSUBISHI | MHI Mechatronics Systems, Ltd. | JAPAN |
| 11 | MELCO | Mitsubishi Electric Corporation | JAPAN |
| 12 | TOSHIBA | Toshiba Corporation Komukai Works | JAPAN |
| 13 | OKI | OKI Electric Industry Co. Ltd. | JAPAN |
| 14 | HITACHI | Hitachi, Ltd. | JAPAN |
| 15 | NEC | NEC Corporation | JAPAN |
| 16 | PANASONIC | Panasonic Corporation | JAPAN |
| 17 | SUMITOMO | Sumitomo Electric Industries, Ltd. | JAPAN |
| 18 | YAZAKI | YAZAKI Energy System Corporation | JAPAN |
| 19 | CLARION | Clarion Co., Ltd. | JAPAN |
| 20 | NISSAN | Nissan Motor Co., Ltd. | JAPAN |
| 21 | EFKON | EFKON | AUSTRIA |
| 22 | FELA | FELA Management AG | SWITZERLAND |
| 23 | TOYOTA | Toyota Motor Corporation | JAPAN |
| 24 | CALSONIC | CalsonicKansei Corp. | JAPAN |
| 25 | TOKAI RIKA | Tokai Rika Co. Ltd. | JAPAN |
| 26 | JRC | Japan Radio Co. Ltd. | JAPAN |
| 27 | FENRITS | FENRITS AS | NORWAY |
| 28 | SCHNEIDER | Schneider Electric | SPAIN |
| 29 | AUTOSTRADE | Concessioni e Costruzioni Autostrade S.p.A. | ITALY |
| 30 | ASCENDENT | Ascendent ID | USA |
| 31 | FURUNO | Furuno Electric Co. LTD. | JAPAN |
| 32 | LYNG | Lyng Elektronikk AS | NORWAY |
| 33 | HYPERION | Hyperion Technologies | AUSTRALIA |
| 34 | AITS | AITS Inc. | SOUTH KOREA |
| 35 | NEC Engineering | NEC Engineering Ltd. | JAPAN |
| 37 | SAMSUNG SDS | Samsung SDS Co. Ltd. | SOUTH KOREA |
| 38 | SNS | SNS Co. Ltd. | SOUTH KOREA |
| 39 | HIGH GAIN | High Gain Telecom Co. Ltd. | SOUTH KOREA |
| 40 | KEIYO | Keiyo Engineering Co. Ltd. | JAPAN |
| 41 | CONTINENTAL | Continental Automotive GmbH | GERMANY |
| 42 | NORBIT | Norbit ITS AS | NORWAY |
| 43 | MITSUBA | Mitsubasankowa Corp. | JAPAN |
| 44 | TOLL COLLECT | Toll Collect GmbH | GERMANY |
| 45 | TECHNO-TRAFFIC | Techno-Traffic Ltd. | RUSSIAN FEDERATION |
| 49 | MOVYON | MOVYON | ITALY |
| 50 | GEA | Grenobloise d’Electronique et d’Aautomatismes (GEA) | FRANCE |
| 51 | DAYTONA | Daytona Corporation | JAPAN |
| 52 | BRISA | Brisa-Inovação e Tecnologia SA | PORTUGAL |
| 54 | TOLLNET | TollNet a.s. | CZECH REPUBLIC |
| 55 | INDRA | Indra Sistemas | SPAIN |
| 56 | Stoneridge | Stoneridge Electronics AB | SWEDEN |
| 57 | Princip | Princip a.s. | CZECH REPUBLIC |
| 58 | JRC Mobility | JRC Mobility | JAPAN |
| 59 | TELEPASS | Telepass S.p.A. | ITALY |
| 60 | CONCORD | Concord Smart Infrastructure AD | BULGARIA |
| 61 | KYOCERA | KYOCERA Corporation | JAPAN |
| 62 | MICWARE | Micware Co., Ltd. | JAPAN |
