Since 1995 Dr. Johan G. Hahn and Skidiz have (among others) worked for:
Sesam Academie - Senior consultant for volunteer organisations
ISF - Consultant at the Dutch Institute for Sponsoring & Fundraising - reviewing the fundraising training programms
Viziris - Managing director a.i. of the Dutch organization for the interests of visually impaired people
The Hague University - Visiting professor for international communication
Rabobank Westland - Manager Communication and Marketing a.i.
Publicatie van fotoboeken over Tibet en China / Publication of Photobooks on Tibet and China
Fototentoonstelling over Tibet / Photoexposition in Tibet in The Hague and Amsterdam
Hersenstichting Nederland / Dutch Brain Foundation - General Manager
Vluchtelingenwerk Nederland / Dutch Refugee Council - Manager Communication and Fundraising a.i.
Bartiméus (Charity offering education and support for the visualy impaired) - Manager Communication and Fundraising
Regionale Patiënten Consumenten Platforms Zuid Holland (Regional organisations of patients) - Consultant
Het Nederlandse Rode Kruis / Dutch Red Cross - Consultant
Flevolandse Drinkwater Maatschappij / Organisation for the distribution of water - Consultant
Politie Flevoland / Regional police department Consultant
Katholieke Bijbel Stichting / Stichting Jaar met de Bijbel / Catholic Bible Society - Consultant
Hoogovens / Corus (now: part of Tata Steel) - Consultant
VNO-NCW (Vereniging NCW) / The Dutch Employers Association - Consultant
Bond Zonder Naam (Dutch charity supporting the poor) - Consultant
Algemene Onderwijsbond (Labour organisation for employees in educational institutions) -Consultant
IKON (Dutch radio and television organisation - Consultant
Ministerie van Buitenlandse Zaken (DGIS) / The Dutch Ministery of Foreign Affairs -Consultant
Katholieke Theologische Universiteit Amsterdam / Utrecht (Catholic Theological University) - Associate Professor
As a volunteer I was (vice)president and boardmember in several Civil Society organizations