Founder and operator of kontaktdatenbank.at. Writes the articles on this website about company data, public registers and the rules for contacting businesses in Austria.
Who is behind kontaktdatenbank.at
kontaktdatenbank.at is run by Martin Adamec as a sole trader. Behind the content, the choice of data sources and the replies to requests is a specific person, not an agency. The full provider details are in the legal notice.
The articles on kontaktdatenbank.at revolve around one question: how do you work with data about businesses in Austria in a way that is both lawful and practical? They describe where company data come from, what the Firmenbuch and GISA make public, how ÖNACE codes define a target group and why marketing emails and calls need consent even towards businesses.
The principle: give figures with a date and source, label approximations as approximations, say openly what is not known, and do not round in our own favour. How we work is described on the data sources and methodology page, the current status on the database status page.
Buying company addresses in Austria: what to check25 October 2026 – Nine checks before you order: source, data status, contact fields, sample file, price per usable record – and why in Austria the intended use matters as much as the data.
