Member States

ESO, the European Organisation for Astronomical Research in the Southern Hemisphere, is an inter-governmental organisation with 15 Member States*. These member states are:

 

Country

Formally joined

Member number

Scale of contribution % (2011)

Contribution (kEUR, 2011)

More info

ESON mini-site

Local Time

Austria
Austria
14
2.40
3,153
Belgium
Belgium
1967
Founding member
3.07
4,033
Brazil
Brazil
15
Czechrepublic
Czech Republic
13
1.23
1,616
Denmark
Denmark
1967
6
1.98
2,601
Finland
Finland
11
1.40
1,839
France
France
1964
Founding member
17.03
22,372
Germany
Germany
1964
Founding member
21.48
28,218
Italy
Italy
1982
8
12.36
16,237
Netherlands
Netherlands
1964
Founding member
4.72
6,200
Portugal
Portugal
9
1.39
1,826
Spain
Spain
12
9.75
12,808
Sweden
Sweden
1964
Founding member
2.72
3,573
Switzerland
Switzerland
1982
7
4.19
5,504
United Kingdom
United Kingdom
10
16.28
21,387
 

* Brazil is in the process of ratifying its membership in parliament.