| Name | ITU-R | ITU-T | ITU-D | Categories |
| Ministry of Science and ICT, Sejong-si | | | | ADMIN |
| Convergence Policy Bureau, SEOUL | | | | ADMIN RELATED |
| Information Planning Office, SEOUL | | | | ADMIN RELATED |
| Korea Communications Commission KCC, GYENGGI-DO, SEOUL | | | | ADMIN RELATED / REGULATOR |
| Radio Policy Bureau, SEOUL | | | | ADMIN RELATED |
| Electronics and Telecommunications Research Institute (ETRI), DAEJEON | X | X | | SIO |
| Hyundai Mobis Co., Ltd., Seoul | | ASSOCIATE SG12 | | SIO |
| Hyundai Motor Company, GYEONGGI-DO | | X | | OTHER ENTITY |
| Korea Information Society Development Institute (KISDI), JINCHEON-GUN | | | X | OTHER ENTITY |
| Korea Internet & Security Agency (KISA)., SEOUL | | ASSOCIATE SG17 | | ROA |
| KT Corporation, SEOUL | X | X | X | ROA / OPERATOR |
| LG Uplus, SEOUL | X | X | | ROA |
| Samsung Electronics Co., Ltd., SEOUL | X | X | | SIO |
| SK Telecom, SEOUL | X | X | | ROA |
