Gerard Fritsma
http://www.stichtingdelichting.nl/uppertunesinfo.html
Susanne Alt
Kees van Lent
https://www.linkedin.com/in/kees-van-lent-0aa37a46/?originalSubdomain=nl
Harm van Oss
https://www.linkedin.com/in/harm-van-oss-37aa0515/?originalSubdomain=nl
Shyla Zoet
http://www.shylazoet.com
Joel Patrick Scannell
https://www.linkedin.com/in/joel-scannell-b5687425/?originalSubdomain=nl