Astghik Der Sakarian
Beluga & Töchter und DerSakarian
Petra Wolkenstein shares our enthusiasm for our work, thinks strategically and implements with us.
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Konstantin Pollanz
HerzensApp
We have worked with Petra for almost two years and every meeting we have had with her has been a blast. Not…
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Dudu Gencel
Startup Services Vienna Business Agency
Today the very first workshop of our #growthlab went online! Great experience thanks to the guidance of Petra Wolkenstein, and the participation…
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Gabriele Tatzberger
Director of Start-up Services at Vienna Business Agency
Thanks for your great support!!
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