Around the world many production applications based on Ontopia are running, and this page presents some of them.
An e-learning system where students use Topic Maps to model what they have learned and connect notes from different subjects and classes.
City of Bergen
A citizen's portal for the city of Bergen, the second biggest city in Norway, all based on Ontopia and Topic Maps.
Norwegian National Broadcasting
A media archive for the Norwegian National Broadcasting service, featuring thousands of media clips targeted at students.
Office of Naval Intelligence
The Office of Naval Intelligence uses the Ontopia software to maintain information about foreign fleets and ships.