Management
The Executive Board – Reliable. Relentless. Role Model
Uwe Leonhardt, Heiko Roß and Mathis Klepper are steering UMaAG into a successful future with reliability and vision. Their combined experience, coupled with passion and ambition, is driving the continuous expansion of renewable energies – not only in the area of wind energy, but also in the fields of biomass, solar and ecological district solutions. With holistic energy concepts for cities, communities and municipalities, they are making a significant contribution to the sustainable success of the medium-sized company.

Founder, CEO and Chairman of Umwelt Management AG
Uwe Leonhardt
Uwe Leonhardt, a business graduate and founder and board member of UMaAG, is responsible for the implementation of large-scale projects, including financing and investments. He is also heavily involved in political communication and association work in the field of renewable energies at local, regional, state and federal levels.
E-Mail: ul.umaag@umwelt-management.de

DIPL.-ING. BOARD OF DIRECTORS SPECIAL PROJECTS
Heiko Roß
As a graduate engineer, Heiko Roß has been responsible for energy concepts for municipalities as well as biomass, hydrogen and solar projects since 2021. As a specialist in storage and everything related to the grid, he is also active in political communication and represents UMaAG at many industry and political events.
E-Mail: hro.umaag@umwelt-management.de

DIPL.-MATHEMATICIAN, EXECUTIVE FINANCE
Mathis Klepper
Mathis Klepper, a graduate mathematician, took over the position of Chief Financial Officer at UMaAG in March 2024 and is responsible for the entire financial strategy and management of UMaAG, including financial management, budgeting, liquidity planning and financial reporting.
E-Mail: mk.umaag@umwelt-management.de