About ET SpatialTechniques HOME


The company was founded in October 2003 by Ianko Tchoukanski. In September 2004, in order to distinguish ourselves from some other companies with similar names the company was renamed to ET Spatial Techniques.


Ianko released his first semi-commercial product (EditTools for ArcView 3.x) in October 1999. It proved to be very successful and in January 2002 was followed by ET GeoWizards for ArcGIS. Both products were based on Ianko's extensive experience in CAD and GIS areas combined with his engineering background. 

The growth of the user base of both applications, the need for new tools to be developed and the inability of a single person to handle all of this was the main reason for founding the company.


Developing reasonably priced, highly functional software for the ArcView/ArcGIS professionals is the prime objective of ET SpatialTechniques. Our software solutions are unique because:

  • Started as a set of tools developed to overcome the weakness of editing in ArcView 3, extensively tested in a real production environment, extended continuously over the years to meet the users needs, now they offer real solutions to real problems which the GIS professionals meet every day in their work.

  • Offer free functionality which by itself is more powerful than any other third party ArcView/ArcGIS editing/data processing add-on. Our estimate is that currently more than 100,000 GIS professionals are using at least one of our products in their everyday work.

  • The user support is very important to us. We believe that a Good product plus a Good documentation is  the base  of providing good user support. ET GeoWizards and ET GeoTools and ET Surface have thousands of registered users. We claim that there has not been a question from a user that has not been answered within 24 hours. 


Along with our off the shelf products, we offer development of custom applications for ArcGIS. 

Contact: sales@ian-ko.com for details

Planned releases:

  • ET Surface 7.0 - March - April 2017 - compatible with ArcGIS Desktop and ArcGIS Pro

  • ET GeoWizards 12.0 - March - April 2017 - compatible with ArcGIS Desktop and ArcGIS Pro

Contact details:

ET SpatialTechniques
266 Degas Street
Faerie Glen
South Africa

P.O. Box 37807
Faerie Glen 0043
South Africa

Cell: +27 82 8260187
Tel: +27 12 9911257
Email: et@ian-ko.com


For any comments and enquiries contact: webmaster@ian-ko.com
Esri and all Esri products mentioned are trademarks of Environmental Systems Research Institute, Inc.
Copyright: Ianko Tchoukanski