Schwan- Stabilo is a German maker of pens for writing, colouring and cosmetics as well as markers and highlighters for office use. It is the world's largest manufacturer of highlighter pens, Stabilo Boss.

The Schwan-Stabilo Group is a German corporate group based in Heroldsberg. Established in 1855, the company is made up of two private manufacturing companies, "Schwan Cosmetics International GmBH" (maker of cosmetics) and "Stabilo International GmbH" (maker of stationery products). 

Schwan-Stabilo has three divisions for its business operations, they are "Writing instruments" (Stabilo), "Cosmetics" (Schwan Cosmetics), and the most recent, "Outdoor", with four subsidiaries makers of outdoor recreation equipment acquired in the 2010s, they are: Deuter Sport GmBH (backpacks), Ortovox (mountaineering), Maier Sports (skiing), and former Maier's brand Gonso (cycling).

As of December 2019, companies of the Schwan-Stabilo Group are: Stabilo, Schwan Cosmetics, Deuter, Ortovox, Maier Sports and Gonso.

According to en.wikipedia