| AMN-MERCOSUR | Mercosur Standards Association | amn.org.br | | IEC Regional Partner |
| CANENA | Council for Harmonization of Electrotechnical Standards of the Nations of the Americas | canena.org | | IEC Regional Partner |
| CENELEC | European Committee For Electrotechnical Standardization | | | IEC Regional Partner |
| CIGRE | Conseil International des Grands Reseaux Electriques | | Liaison (7) | IEC International Partner |
| COPANT | Comision Panamericana De Normas Tecnicas | copant.org | | IEC Regional Partner |
| EASC | EuroAsian Interstate Council for Standardization, Metrology and Certification | easc.org.by | | IEC Regional Partner |
| ETSI | European Telecommunications Standards Institute | etsi.org | Liaison (1) | IEC Regional Partner |
| IEEE PES | IEEE Power & Energy Society | | Liaison (1) | IEC International Partner |
| IFAN | The International Federation of Standards Users | ifan.org | | IEC International Partner |
| ISO | International Organization for Standardization | iso.org | Liaison (149) | IEC International Partner |
| ITU | International Telecommunication Union | | Liaison (19) | IEC International Partner |
| OIML | Organisation Internationale de Metrologie legale | | Liaison (8) | IEC International Partner |
| PASC | Pacific Area Standards Congress | pascnet.org | | IEC Regional Partner |
| UNECE | United Nations Economic Commission for Europe | unece.org | | IEC International Partner |
| WHO | Organisation Mondiale de la Sante | | Liaison (3) | IEC International Partner |
| WTO | Organisation Mondiale du Commerce | | | IEC International Partner |