Stephan has been the managing director of iSQI since 2005. Under his leadership, iSQI expanded worldwide. Stephan has worked for many years with professionals, trainers and institutions in the field of education.  iSQI now has branches and offices around the world.

Julia Jasper has been working with marketing since 2017 and being Editor in Chief of the SQ Mag – Software Quality magazine since 2022. She is a driven and resourceful marketer with broad international experience.

Debbie Archer is the managing director for iSQI Ltd supporting customers in the UK, Ireland, Nordics, South Africa and Asia-Pacific region. She has been involved in the training and certification industry for almost 20 years. She is a volunteer with several working groups with ISTQB®.