SIKART Lexicon on art in Switzerland is SIK-ISEA's online information system on historical and contemporary art in Switzerland and the Principality of Liechtenstein. Richly illustrated, it is edited and updated on a daily basis. SIKART offers combined query facilities on artists, works, exhibitions, literature and awards, and now features 16,000 entries on current and historical artists, as well as 1,600 in-depth biographical articles.

SIKART's team of scholarly editors regularly produces new articles. Where historical artists are concerned, the focus is primarily on new research findings; in the case of contemporary artists, the entries reflect their reception in the art world.