Here we mention some of the organizations actively involved into the development of Ontop.
# Free University of Bozen-Bolzano
The In2Data research group (opens new window) initiated and continues to lead the development of Ontop.
# Ontopic s.r.l.
Ontopic (opens new window) is the first spin-off of Free University of Bozen-Bolzano and has been co-founded by some members of the In2Data research group. Its mission is to help Ontop and the Virtual Knowledge Graph to become mainstream. Ontopic provides services and additional products.
# Birkbeck, University of London
The Birkbeck (opens new window) group have been extensively involved in the development of Ontop since 2012. They have worked on the theoretical foundations of the VKG approach, including query rewriting and optimisation, and contributed to the code base.