IMPRINT.

Marawan Elsayed Mohamed Salem Salama
Trading as INHOUSE — Revenue System Architecture. Non-registered sole proprietor (nicht protokollierter Einzelunternehmer) — not entered in the Austrian Commercial Register (Firmenbuch).

Mühlsteigstraße 97
2753 Waldegg-Ober-Piesting
Austria

Marawan Elsayed Mohamed Salem Salama
Founder · Sole proprietor. Sole signing authority.

office@inhouse-vie.com
Website: inhouse-vie.com

Legal & privacy: legal@inhouse-vie.com
Projects & procurement: project@inhouse-vie.com
Careers: career@inhouse-vie.com
Press & media: press@inhouse-vie.com

Written correspondence accepted in German and English. Contracts and invoices are issued in the language of the respective engagement.

Not applicable.
The owner operates as a non-registered sole proprietor (nicht protokollierter Einzelunternehmer) and is therefore not entered in the Austrian Commercial Register (Firmenbuch). No Firmenbuchnummer (FN) is assigned.

UID-Nr. (VAT): application pending with the competent tax office; this entry will be updated upon issuance.
Intra-community supplies of services are invoiced net where the reverse-charge procedure applies (Art. 196 Directive 2006/112/EC).

Gewerbewortlaut: Dienstleistungen in der automatischen Datenverarbeitung und Informationstechnik (freies Gewerbe).
GISA-Zahl: 39252395
Entstehung: 23.01.2026
Granted under the Austrian Trade Regulation Act (Gewerbeordnung 1994). Current extract retrievable at gisa.gv.at/abfrage.

Gewerbebehörde: Bezirkshauptmannschaft Wiener Neustadt, Ungargasse 33, 2700 Wiener Neustadt.
Competent for licence supervision, complaints and market-conduct oversight.

Mitglied der Wirtschaftskammer Niederösterreich (WKNÖ) — Fachgruppe UBIT (Unternehmensberatung, Buchhaltung und Informationstechnologie — Berufsgruppe Informationstechnologie).
Bezirksstelle Wiener Neustadt.
Mandatory membership of the Austrian Federal Economic Chamber (WKO) pursuant to the Wirtschaftskammergesetz (WKG 1998).

Gewerbeordnung 1994 (GewO) — ris.bka.gv.at
E-Commerce-Gesetz (ECG) — ris.bka.gv.at
Mediengesetz (MedienG) — ris.bka.gv.at

Österreichische Datenschutzbehörde
Barichgasse 40–42, 1030 Wien
dsb@dsb.gv.at · dsb.gv.at
Competent supervisory authority pursuant to Art. 51 GDPR.

Marawan Elsayed Mohamed Salem Salama, Mühlsteigstraße 97, 2753 Waldegg-Ober-Piesting, Austria. Sole proprietor — 100 % owner.

Identical to the media owner above. No third-party publisher or producer.

inhouse-vie.com is a corporate website (Unternehmenswebsite). Its grundlegende Richtung is the public presentation of the business, its services, case studies and editorial opinions on marketing, revenue systems and software engineering. The site is not a periodical publication within the meaning of § 1 (1) Z 5a MedienG.

The sole proprietor is the exclusive owner of the business. No third party — natural or legal — holds any participation in, or exerts economic influence over, the editorial direction of this website.

The European Commission provides an online dispute resolution platform pursuant to Regulation (EU) No 524/2013 (ODR Regulation): ec.europa.eu/consumers/odr.
We are neither obliged nor willing to participate in dispute resolution proceedings before a consumer arbitration board (§ 36 AStG) unless mandated by law.

All contracts, disputes and claims arising from or in connection with this website or services rendered by INHOUSE are governed by Austrian substantive law, to the exclusion of the UN Convention on Contracts for the International Sale of Goods (CISG) and to the exclusion of conflict-of-law rules.

Exclusive place of jurisdiction for all disputes between merchants (B2B) is the court competent for 2700 Wiener Neustadt, Austria. The statutory place of jurisdiction for consumer disputes (B2C) remains unaffected.

All text, graphics, code, layouts, animations, photographs, renderings and logos on this website are protected under the Austrian Copyright Act (UrhG 1936) and international copyright treaties. © 2026 Marawan Elsayed Mohamed Salem Salama / INHOUSE. Reproduction, distribution or public display in whole or in part requires prior written consent.

INHOUSE, INHOUSE VIENNA and the three-dot brand mark are used as business designations (Geschäftsbezeichnungen / Unternehmenskennzeichen) of the sole proprietor Marawan Elsayed Mohamed Salem Salama. All third-party names, product names or logos shown on this website are the property of their respective owners and are used for editorial reference only.

Content on this website is prepared with due care. Notwithstanding § 7 ECG, the sole proprietor is responsible for own content on these pages in accordance with general law. No liability is assumed for the correctness, completeness or up-to-dateness of content that does not serve the primary commercial purpose of the site.

Pursuant to § 17 ECG, the operator is not responsible for the content of external websites to which this site links. At the time of linking, no infringements were discernible. Should we become aware of legal violations, we will remove the link without delay.