Ordbogen A/S[5] is an online education and language technology company located in Odense, Denmark.

[citation needed] In 2001, Michael Walther, Bjarni Norddahl, Thomas Thomsen, and Jacob Hatt founded the company Cool Systems ApS.

Shortly after the release of coolsms.dk, Thomas Thomsen and Jacob Hatt left the company.

That same year, Ordbogen also became strategic partners with the Centre for Lexicography at Aarhus University in order to publish their dictionary Den Danske Netordbog[18] (Engl.

During this period, Ordbogen received the Børsen Gazelle award[19] six years in a row.

In 2010, Ordbogen acquired the online grammar teaching system Grammatip, and that same year they entered into another strategic partnership with the publishers JP/Politikens Hus,[20] followed by the Danish Language Council, Dansk Sprognævn, in 2011.

Educas had developed from Vikartimen, a teachers’ resource previously bought by Ordbogen A/S, whose name and concept were changed and further digitised.

[23] Ordbogen's flagship product is Ordbogen.com which, due to its international collaboration, makes Ordbogen.com the largest dictionary website in Denmark.

Users have the opportunity to suggest changes and edits, which Grammatip then incorporates when creating new categories and exercises.

Grammatip covers several exercises such as: Educas is a web-based educational portal with thousands of exercises for all mandatory subjects and interdisciplinary themes for the public Danish elementary and secondary level school system (the “folkeskole”).

Educas allows teachers to apply the site as a digital ”blackboard”,[25] and several times a year theme weeks are held that combine school topics with current events.