Trainingen verzorgd door Gerrit van der Kolk

Blue Sky Group Evaluatie
Topking - trainingen
Flitsdeur B.V - Excel consultancy
Idemia Services B.V. - Microsoft Office trainingen
Conseiller B.V. - Microsoft Word training
Acta Marine - Excel trainingen
Petrogas - Excel 2016 Basis training
De Woonschakel - Excel training
Broekman - Excel trainingen
Van Gogh museum - Excel trainingen
Van Gogh museum - Excel training
Broekman - Excel trainingen
Palladio BV - VBA Excel Gevorderd
Nedis - Access Basis training
Medis - Access 2016 Basis training - 11 en 12 december 2018
Ministerie van Defensie - Office trainingen - Locatie Den Helder
BMW Group - Access 2013 Basis training - 09 en 11 oktober 2018
Attero Noord BV - Excel 2013 Expert, Master en VBA Basis training - meerdere data (laatste datum 12 oktober 2018)