Do you need help with
Open Source GIS?
I'm Hans van der Kwast. With more than 20 years of experience with GIS and Remote Sensing in education and projects, I'm now offering consultancy, training and coaching in open source GIS. I'm an active member in the QGIS community, a QGIS certified trainer, and board member of the Dutch QGIS User Group. I've established the GIS OpenCourseWare platform for sharing free course materials on QGIS, Python, Mergin Maps, Google Earth Engine and much more. The PCRaster Tools plugin for QGIS that I've developed has been downloaded more than 30k times. Furthermore, I'm co-author of the book QGIS for Hydrological Applications and I have a YouTube Channel with more than 20k subscribers. As a member of QCooperative, I'm well connected with the best open source GIS developers.
Are you struggling with your GIS work flows?
I offer online consultancy on GIS work flows with QGIS, Mergin Maps, Python, PCRaster, WebODM, GDAL and other open source software.
Are you looking for a coach?
I provide online coaching sessions to beginning and more advanced GIS professionals. Topics for coaching could be on open source business model development, marketing or GIS career development.
My latest blog posts
I'm happy to share with you the recording of my latest webinar on Mergin Maps, a fantastic app that lets you collect and edit geospatial data on your mobile device and sync it with QGIS. The webinar was live streamed on my YouTube channel on 25 October 2025.