Jansen AG is a family-owned company that develops, manufactures and distributes steel profile systems for windows, doors and facades as well as plastic products for the construction industry.

In 1997, a first new production site outside Switzerland was established in Dingelstädt, Germany.

[6] In 2021, Jansen AG decided to focus on steel products for windows, doors and facades, spinning-off its supplies for the automotive industry to Mubea.

[7] As the exclusive licensee of Schüco in Switzerland and Liechtenstein, Jansen also offers architects and processors solutions made of aluminium.

[10] Since its beginning, the Jansen Group is 100% family-owned and employs 2024 around 600 people internationally.