Standardization bodies

ISO (1947) - www.iso.org/iso/home

Members

120 countries, only one body per country (AFNOR for France)

Work

180 Technical Committees - 12,000 standards published

CEN (1961)  -   www.cencenelec.eu

General european standards - Headquarters in Bruxelles

Members

20 countries, only one body per country (AFNOR for France)

Work

76 Technical Committees - 2 000 standards published

IEC

International Electrotechnical Commission - Headquarters in Genova
See more at: https://www.iec.ch/homepage

ITU

International Telecommunication Union - Headquarters in Genova
See more at: https://www.itu.int/en/Pages/default.aspx

CENELEC

European Committee for Electrotechnical Standardization - Headquarters in Brussels

See more at: https://www.cenelec.eu/   

ETSI

European Telecommunications Standards Institute 

See more at: https://www.etsi.org/