National optical societies

Currently, the following national optical societies in Europe are members of the EOS. There are two groups of EOS societal members:

EOS Branches

EOS Affiliated societies

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Membership options

National Optical societies can join the EOS as a Branch or Affiliated society. To apply, they should contact the EOS office directly.


Annual fee per member: 18 €
All individual members of the Branch automatically become full individual EOS members with full benefits. 

IOP members are asked to fill in the
Iop membership registrationIOP membership registration in order to activate their individual membership.

Affiliated societies

Annual fee per member: 8 €
All individual members of the Affiliatied society automatically become associate EOS members with limited benefits.


EOS Office
+358 50 5924693