Contact Us

58 rue du Fossé Blanc
92230 Gennevilliers, France
Phone: +33 (0)1 41 47 35 70
Fax: +33 (0)1 41 47 35 98

Sommer GmbH (GREMTEK GmbH)
Kraichgaustr. 5
73765 Neuhausen, Deutschland
Phone: +49 7158 98127-60
Fax: +49 7158 98127-98
E-mail :

GREMTEK Central Europe
Przemysłowa 60
Mobile : +48 696 91 92 92
E-mail :

GREMTEK Turkey & Middle East
Ataturk Cad. Elysium Park Sitesi C-48
Cekmekoy-istanbul, Turkey
Phone: +90 216 372 03 77
Fax: +90 216 372 07 95
Mobile: +90 532 522 27 25

For any request, use the form below or send us an e-mail, we shall be glad to answer you as soon as possible.


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The required data is necessary to answer your request; they will be kept for two years to ensure follow-up. The information provided is for the exclusive use of Gremtek, and will not be disclosed to third parties. In accordance with the Data Protection Act, you have the right to access, rectify and delete your data. You may also object, for legitimate reasons, to the use of your data. Since May 25, 2018, in accordance with the General Regulations on Data Protection, you will have the right to erase your data. Only you can exercise these rights on your own data by contacting: Gremtek, 58 rue du Fossé Blanc 92230 Gennevilliers, France or, specifying in the subject of the mail "Law of the persons "and enclosing a copy of your proof of identity.