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!