- SAGI – the South African Geomatics Institute
- Order Surveyor- General Documents via National Database
- Order Surveyor-General diagrams via National Database
- Department of Land Affairs – NGI – old Trig Survey
- Plato, now known as the South African Geomatics Council
- Spatial Reference: Survey Related Website with services that include SA based Control Point Searches and Survey Calculations.
- PlanetGis – the alternative GIS – developed in South Africa
- Gannaga Adventures in the Tanqua Karoo