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Site Notice


Angaben gemäß § 5 TMG

Martha Tretter
artemezzo eU
Rotensterngasse 5/21
1020 Wien


Phone: +43 699 12142379
Email: [email protected]

value added tax

Sales tax identification number according to §27 a sales tax law:

Commercial register number

FN 332054 s

Place of jurisdiction

Commercial Court Vienna, Marxergasse 1, 1010 Vienna

legal form


Supervisory authority

Magistrate of the City of Vienna
Friedrich-Schmidt-Platz 1
1010 Wien

Job title and professional regulations

Job title: tourist guide – austriaguide, event and event agency
artemezzo eU / Martha Tretter is a member of the Vienna Chamber of Commerce, specialist group for leisure businesses, with the business for tourist guides registered there and the business for organizing events, markets and trade fairs (event management)
Awarded by: Austria
The following professional regulations apply: Trade regulations
Regulations can be viewed at:

Responsible for the content according to § 55 Abs. 2 RStV

Martha Tretter
Rotensterngasse 5/21
A –1020 Wien


© Reza Sarkari: Portraits Martha Tretter
© WienTourismus/Paul Bauer: 50727 Brunnenmarkt
© WienTourismus/Christian Stemper: 40777 Kaffeehaus: Café Restaurant Weimar, 40513 Stephansdom, 50242 Otto Wagner Pavillon am Karlsplatz, 50240 Karlskirche, 40624 Wiener Rathaus, 40653 Rosen im Volksgarten,
© WienTourismus/Peter Rigaud: 26033 Beim Wiener Würstelstand, 40079 Demel, 25033 Kaffeehaus: Café-Restaurant im Kunsthistorischen Museum, 26010 Café Sperl, 50040 Café Sperl Melange, 40407 + 40414 Wieninger am Nussberg, 40402 Heuriger Schübel-Auer Heurigenbuffet, 50011 + 50024 Heuriger Schübel-Auer
© WienTourismus/Gregor Hofbauer: 50845 Unteres Belvedere
© shutterstock_87571999
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© Roman Hauser: Organist Roman Hauser, Jesuitenkirche
© Haas&Haas/Michael Niederdorfer: Vinothek, Keller Porta Dextra, Stiegenabgang Porta Dextra
© Sebastian Frankenberger
© Martha Tretter
© Elisabeth Leibezeder

Dispute settlement

The European Commission provides a platform for online dispute resolution (OS): .
You can find our email address in the legal notice above.

We are neither willing nor obliged to take part in dispute settlement proceedings before a consumer arbitration board.

Liability for content

As a service provider we are in accordance with Section 7 (1) TMG is responsible for its own content on these pages according to general law. According to §§ 8 to 10 TMG, as a service provider, we are not obliged to monitor transmitted or stored third-party information or to investigate circumstances that indicate illegal activity.

Obligations to remove or block the use of information in accordance with general law remain unaffected. Liability in this regard is only possible from the point in time at which we become aware of a specific legal violation. As soon as we become aware of such legal violations, we will remove this content immediately.

Liability for links

Our offer contains links to external third-party websites over whose content we have no influence. Therefore we cannot accept any liability for this external content. The respective provider or operator of the pages is always responsible for the content of the linked pages. The linked pages were checked for possible legal violations at the time they were linked. No illegal content was found at the time the link was created.

Permanent monitoring of the content of the linked pages is not reasonable without concrete evidence of a legal violation. If we become aware of legal violations, we will remove such links immediately.


The content and works on these pages created by the website operator are subject to German copyright law. The reproduction, processing, distribution and any kind of exploitation outside the limits of copyright require the written consent of the respective author or creator. Downloads and copies of this website are only permitted for private, non-commercial use.

Insofar as the content on this site was not created by the operator, the copyrights of third parties are observed. In particular contents of third parties are marked as such. Should you nevertheless become aware of a copyright infringement, we would ask you to notify us accordingly. As soon as we become aware of legal violations, we will remove such content immediately