Need to contact administration, a professional syndicate or a department?

Here you can find all our addresses and the services and structures based there. If you would like to know more about our Information, Advice and Support Service, click here.

How can I contact the OGBL?

In order to simplify the relationship with your union and to be able to respond as quickly and efficiently as possible to your needs, we would like to indicate here our main contact points.

For consultation or support in labor law or social law matters, you can contact the OGBL’s Information, Advice and Support Service (SICA) by calling the central telephone number + 352 2 654 37 77 or simply by filling in the form on

You wish to contact the OGBL headquarters?
If you wish to contact the presidency or the administration of the OGBL, you can do so by phone, fax, e-mail or mail:
Phone : + 352 54 05 451
Fax : + 352 54 16 20
Postal address: OGBL, BP 149, L-4002 Esch-sur-Alzette

Press contact
Olivier Landini – OGBL Communication & Press
31, rue du Fort Neipperg L-2230 Luxembourg
Phone : + 352 54 05 45 262
E-mail :

Do you know someone who would like to become a member?
If you have a friend, an acquaintance or a colleague at work who would like to join OGBL, you should contact the Membership Service.

OGBL Membership Service

31, avenue Grande-Duchesse Charlotte
L-3441 Dudelange
Phone : + 352 54 05 45 928

The interested person can also consult, fill in and print the membership form (available on this page) and return it signed by mail to the above address or fill in the Become a member form online.

Would you like to change your personal membership data?
Any changes to a member’s personal data must also be communicated to Membership Service at the above address.
Similarly, in the event of a member’s death, you should contact Membership Service at the above address. Also, please remember that the survivors of a member are entitled to receive support.

Would you like to get involved in your company or contact a professional syndicate?
As an OGBL member, you are part of a professional syndicate that deals with your specific sector. If you want to get involved in your company or contact your syndicate for another reason, you will find the contact details on the page of the relevant syndicate.