https://archive.g3newswire.com/bmm-innovation-group-names-john-helderman-as-chief-financial-administrative-officer/
BMM Innovation Group names John Helderman as Chief Financial & Administrative Officer
john heldermanadministrative officerbmminnovationgroup
https://tanjahelderman.nl/mijn-hart/
Mijn Hart – Tanja Helderman
mijn harttanjahelderman
https://dgtl-festival.com/en/artists/aldonna-merel-helderman/
Aldonna & Merel Helderman • DGTL
Jan 26, 2026 - DGTL is a festival full of discovery, inspiration and surprise. At DGTL, we constantly strive to balance the leading names in art and electronic music.
merelhelderman