Mathias GAErtner

Head Legal & Compliance

Mathias Gaertner is Head Legal & Compliance and has been a member of the Group Executive Committee since 2021.


Mathias is a proven senior legal leader in technology-driven building solutions with a solid track record in international mergers & acquisitions and compliance. He spent 10 years at Honeywell Building Technologies, most recently as General Counsel, playing an instrumental role in the business’ growth.

He joined Holcim in 2021 as Head Legal & Compliance.

Mathias studied at the University of Münster, where he obtained his PhD, and is admitted to the German bar. Mathias is a German national and was born in 1973.

Mathias Gaertner

Meet the Holcim executive committee

Chairman and Chief Executive Officer
Chief Financial Officer
Global Head, Solutions & Products Business Unit
Region Head Europe
Region Head Asia, Middle East & Africa
Region Head Latin America
Region Head North America
Chief Sustainability Officer
Head Legal and Compliance