About Friendly
Marketing Should Be Ethical

Friendly is a Swiss MarTech start-up and the world’s first provider of ethical marketing software. We place value on privacy, rely on open source and donate 1% of our revenues to charity:

Open Startup

Friendly is an open startup. This means that we operate transparently and share our metrics, including revenue and website traffic. Our product backlogs are public, too.

Our Team

Stefan Vetter

Stefan Vetter is founder and CEO at Friendly. He is also founder of Wortspiel, one of the leading digital marketing agencies in Switzerland.

Clients of Wortspiel

József Keller

József "Joey" Keller is CTO and employee No. 1 at Friendly. He is the translator of the Hungarian version of the email marketing software Mautic. Before Friendly, Joey worked as head of email deliverability for an US media company, as country manager for the largest social network in Hungary and as an ecommerce manager for the national airline of Hungary.


These books inspire us in what we do and how we do it:


We would like to thank the people and organizations that have made Friendly possible and continue making it so:

Product Development

Open Source Projects