About us
ISO (International Organization for Standardization) is an independent, non-governmental international organization with a membership of 169 national standards bodies.
Through its members, it brings together experts to share knowledge and develop voluntary, consensus-based, market relevant International Standards that support innovation and provide solutions to global challenges.
You’ll find our Central Secretariat in Geneva, Switzerland. Learn more about our structure and how we are governed.
Contact ISO
International Organization for Standardization
ISO Central Secretariat
Chemin de Blandonnet 8
CP 401 - 1214 Vernier, Geneva, Switzerland
E-mail: central@iso.org
Tel.: +41 22 749 01 11
Fax: +41 22 733 34 30
Celebrating 75 years...
Friendship among equals
The ISO story began in 1946 when delegates from 25 countries met at the Institute of Civil Engineers in London...
Read more about the first 50 years of ISO (1947-1997) in the book:
It’s all in the name
Because “International Organization for Standardization” would have different acronyms in different languages (IOS in English, OIN in French for Organisation internationale de normalisation), our founders decided to give it the short form ISO. ISO is derived from the Greek “isos”, meaning equal. Whatever the country, whatever the language, we are always ISO.

How did we do in 2022?
How many projects did we begin? Which sectors were most active? How many documents did we publish?
Find our key achievements in figures at a single glance.
Annual reports
2022 was “business as usual” – offering solutions to the planet’s most pressing challenges, delivering an ambitious ten-year strategy, and bringing every one of our members on that journey.
Find out how we achieved that as we look at the highlights of a year that focused on collaboration, community and climate action.