Polycorp Media provides high-quality audio production with a strong focus on radio branding, crafted through the ears, hands, and heart of Harmen Sipkema.
I founded Polycorp Media in 1999 and built it on a passion for creative audio production. Whether working solo or collaborating with other artists—on stage or in the studio—music and sound have always been at the heart of my work. With time, radio production has become my core business.
Over the years, I’ve developed expertise in nearly every stage of the production process. I’ve worked for countless major radio stations — first as part of, and later alongside, leading international companies such as VHU/Pure Jingles, Brandy and Wow Branding.
My work includes vocal arrangements, vocal recording, mixing, and mastering—all the way to fully broadcast-ready productions. Chances are, you’ve already come across my work on the air.
The results can be heard on major stations from Moscow to Marrakesh — and all across Europe.
Radio branding and imaging remain my specialty.
Let’s connect.