The International Organization for Standardization is a network of 172 national standards bodies.

ISO members are the foremost standards organizations in their country and there is only one member per country. Each member represents ISO in its country.

There are three member categories with different levels of access and influence. This helps us to be inclusive while also recognizing the different needs and capacity of each national standards body.

 

Full members (or member bodies)

  • set the course for ISO standards development and strategy: participating and voting in ISO technical and policy meetings;
  • sell and adopt ISO standards nationally.

Correspondent members

  • attend ISO technical and policy meetings as observers;
  • sell and adopt ISO standards nationally / within their membership territory.

Subscriber members

  • keep up to date with ISO’s work but: cannot participate in it;
  • do not sell or adopt ISO standards nationally.

ISO members by country

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This map is designed to visually demonstrate the geographic distribution of our Members. The boundaries shown do not imply an official endorsement or acceptance by ISO.
Country/Territory Acronym Membership TC Participation PDC Participation
Seychelles SBS Correspondent member 20 3
Bhutan BSB Correspondent member 21 2
Togo ATN Correspondent member 8 2
Turkmenistan MSST Correspondent member 5 2
Yemen YSMO Correspondent member 0 0
Somalia SoBS Correspondent member 5 1
South Sudan SSNBS Correspondent member 0 0
Macao Special Administrative Region of China CPTTM Correspondent member 12 2
Tajikistan TAJIKSTANDARD Correspondent member 10 1
Palestine, State of PSI Correspondent member 16 3
Lao People's Democratic Republic DOSM Correspondent member 5 1
Niger ANMC Correspondent member 5 2
Gambia TGSB Correspondent member 4 3
Mauritania DNPQ Correspondent member 11 2
Sierra Leone SLSB Correspondent member 7 2
Angola INIQ Correspondent member 6 2
Djibouti ADN Correspondent member 0 0
Saint Vincent and the Grenadines SVGBS Correspondent member 0 0
Eritrea ESI Correspondent member 4 1
Albania DPS Correspondent member 3 3
Brunei Darussalam NSC Correspondent member 6 3
Honduras OHN Correspondent member 9 2
Lesotho LSI Correspondent member 2 3
Hong Kong Special Administrative Region of China ITCHKSAR Correspondent member 167 2
Eswatini SWASA Correspondent member 15 3
Guyana GNBS Correspondent member 5 1
Chad ATNOR Correspondent member 7 2
Vanuatu VBS Correspondent member 0 0
Kyrgyzstan KYRGYZST Correspondent member 10 1
Cambodia ISC Correspondent member 17 1
Paraguay INTN Correspondent member 0 1
Moldova, Republic of ISM Correspondent member 36 3
Georgia GEOSTM Correspondent member 9 2
Nicaragua DNM Correspondent member 0 2
Madagascar BNM Correspondent member 6 1
Mozambique INNOQ Correspondent member 9 3
Dominica DBOS Correspondent member 7 3
Myanmar DRI Correspondent member 9 3
Papua New Guinea NISIT Correspondent member 4 1

Interested in ISO membership?

Individuals or companies cannot become ISO members, but many make important contributions to the ISO community’s standardization work.
Find out how you can get involved, or contact the ISO member in your country!