We are a group of friends and internet/tech entrepreneurs who first met in the late 2000s in Saarbruecker Strasse 21 in Berlin Prenzlauer Berg. All of us started successful businesses, we are founders and share a passion for building great companies.As active business angels, we invest in young startups, either individually or collectively as a group. We provide seed funding for killer-founders and great ideas. But way more important: we help you to avoid mistakes that we have already made (and yes, we've made a lot). We introduce you to the right people. We provide you with all the experience that we have. Not just talking about it but helping you hands-on.Your friends from SB21