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Stack Holdings
stack holdings is a vienna-based software-as-a-service portfolio company operating productivity-boosting cloud platforms used by over one million b2b customers worldwide. stack holdings products currently include eversign (eversign.com), invoicely (invoicely.com) and zerossl (zerossl.com). in early 2015 julian and paul zehetmayr, two brothers and co-founders, started building a diverse set of well performing, highly scalable micro-service apis to help businesses and developers around the world automate complex processes, such as currency conversion, file conversion and different types of data validation. in the course of almost seven years, the brothers scaled their portfolio to a total of 20 market-leading api products and over a million customers all around the world. in late 2020, apilayer was acquired by the texas-based technology giant idera, inc. in 2016, the zehetmayr-brothers founded stack holdings and expanded their reach into the software-as-a-service market, building invo
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Distro — Free Sales Engagement Platform
Sequences, cloud call center, shared inbox, form tracking and more — on a single platform. Double your sales team's output with fewer tools.
Create a sequence — it's free
