Martina Horká joined dm drogerie markt at the beginning of 1998 when she took up the position of assortment manager. She was responsible for the assortment of decorative, skin and body cosmetics, dental care and fragrances. In 2002, she took over the management of the marketing and purchasing department, thereby joining the management of the company. In the fall of 2006, she became responsible for the region of the Czech Republic. Since 2007, she has been a procurator of the company, and since 2017 she has been the legal executive of dm drogerie markt.