ISO (International Organization for Standardization) is an independent, non-governmental membership organization and the world’s largest developer of voluntary International Standards.

We are made up of our 163 member countries who are the national standards bodies around the world, with a Central Secretariat that is based in Geneva, Switzerland. Learn more about our structure and how we are governed.

What are standards?

International Standards make things work. They give world-class specifications for products, services and systems, to ensure quality, safety and efficiency. They are instrumental in facilitating international trade.

ISO has published more than 19 500 International Standards covering almost every industry, from technology, to food safety, to agriculture and healthcare. ISO International Standards impact everyone, everywhere.

we have published over 19,500 International Standards covering almost all aspects of technology and manufacturing.

Today we have members from 163 countries and 3,368 technical bodies to take care of standard development. More than 150 people work full time for ISO’s Central Secretariat in Geneva, Switzerland.

To find out more about the history of ISO, see our timeline.

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.



International Organization for Standardization
ISO Central Secretariat
Chemin de Blandonnet 8
CP 401
1214 Vernier, Geneva Switzerland

• Website: www.iso.org

• Email: central@iso.org

• Phone: +41 22 749 01 11



ISO Central Secretariat

Technical Communities 


ISO Members



How to find a standard?

ISO has over 19,500 International Standards covering almost all aspects of technology and business. All standards can be found in the ISO store.



ISO 9000 – Quality management

ISO 14000 – Environmental management

ISO 3166 – Country Codes 

ISO 22000 – Food safety management

ISO 26000 – Social responsibility

ISO 50001 – Energy management

ISO 31000 – Risk management

ISO 4217 – Currency codes 

ISO 639 – Language codes

ISO 20121 – Sustainable events

ISO/IEC 27001 – Information security management




This is a list of international standards-related events. A list of the meetings of ISO standards-development committees can be found in the ISO meeting calendar.