CHIEF SUPERVISORS for JIAS in Poland :Thake Hansen-Lauff, Laboe & Katrin Sanne, Schönberg, DE    www.hoertraining-ias.de

Instytut Johansena IAS   www.dyslexia-lab.dk 

Germ.:  Johansen-Indiviadualisierten Audititiven Stimulation www.hoertraining-ias.de
Holl:    www.johansensoundtherapy.nl (Dutch therapists)
Italy:  www.istitutifay.org (Istituti Fay, Lucca)
UK:     www.johansensoundtherapy.com (Therapists in the UK) 
USA:   www.actg.org      (AChanceToGrow,MN) 
Scand.: www.sensonordic.com (Nordisk Netværk)