Cognitive Tools offers services and support for SWI-Prolog and its stable packages.
The principal developer of SWI-Prolog, Jan Wielemaker, is affiliated with Cognitive Tools and the University of Amsterdam. Cognitive Tools delivers DECYS a decision support system implemented in XPCE/SWI-Prolog.
Services and support are provided by the SWI-Prolog developers or in close cooperation with them.