WHO ARE WE. We are primarily a team of creative online sports media & marketing strategists with a backbone of keen hands-on professionals. Defgemz is managed by brand marketing strategist & media specialist Sven Willemsen MSc MA. We mainly work for athletes, artists, representative agents, sports & entertainment agencies, but of course we welcome other sports and entertainment organisations as well. We assist them on media and marketing related subjects. To them, we are the additional left & right hemisphere. We literally go from analytical research-driven hands-on data insights to conceptual strong commercial creative ideas and engaging content for the most important social media channels.




CONNECTING WORLDS. Make our clients capitalise over media value that we help to increase. That’s what we are up to. We are arty-tech & content passionate. We tell stories mindfully aesthetic and get those stories smart-layered out there by being socially savvy & media experienced. In short: Defgemz builds & takes care of online brands & reputations


WHY WE DO WHAT WE DO.  In our team most of us have been (top) sporters and/or musicians. In a way we know our clients’ worlds, we have lived their passion and (dreamt) their talents. We travelled, played and staged like they did (a bit). We made new or additional career steps (like they will do). We have seen, experienced and studied the (digital) media, marketing, social psychology, brands & business. Thus we simply can’t deny: sports, music, digital media & brands is what we live most. Here we are!  Results-driven & people-minded. Let’s connect and work together!

The first 90 minutes are the most important. 

Sir Robert William “Bobby” Robson

Coach / Trainer