Etalmag Sàrl is a limited liability company based in Vionnaz, in the canton of Valais, founded in 1987 by Pascal Mastrocola (Manager and Partner) and Maria Silvia Mastrocola (Manager, President, and Partner). Its identification number UID is CHE-100.664.790. It is active in "construction of residential and non-residential buildings". Before moving its legal seat, the company was based in Jouxtens-Mézery until the 7th June 2011. Currently, the people holding decision-making roles are Pascal Mastrocola (Partner and Manager) and Maria Silvia Mastrocola (Partner, President, and Manager).