Achim Loecher is with Proton Motor since June 2007. As CFO of the company he is responsible for the divisions finance, controlling, treasury and human resource management. Achim Loecher has many years of expertise in the field of finances and furthermore possesses broad experiences in operational and strategic corporation management, fund raising, initial public offering, pre- & post-merger management as well as management consultancy.

Prior to joining Proton Motor Achim Loecher worked for over 15 years in international and national companies as manager and Member of the Board. His main fields of business activities were primarily commercial direction and business management as well as the responsibility for the divisions finance and accounting, controlling, treasury and human resource management.

Achim Loecher studied business management at the Ludwig-Maximilians-Universität (LMU) Munich and started his business career in 1988 as financial analyst for Digital Equipment Corporation in Munich.

Personal profile Achim Loecher

Sebastian Kriener has been with Proton Motor since 2001. Initially responsible for the quality control of suppliers and for establishing production standards, he was promoted shortly afterwards to deputy head of production. Later he was given overall responsibility for production as well as managing the production team.

Since December 2010 Mr. Kriener has been  given responsibility for overall operational management , including production, service, logistics and organization. Mr. Kriener has extensive knowledge due to his long-term experience of the production processes and organizational structures within the company and the industry.

Sebastian Kriener studied supply engineering with focus on renewable energies at the University of Applied Sciences Erfurt and built a prototype of a PEM fuel cell stack at the company Buderus during his thesis.

Personal profile Sebastian Kriener

Manfred Limbrunner joined Proton Motor in November 2000 as a design engineer and project manager for various mobile and maritime projects. In his early years he was also in charge of the systems engineering and the homologation of the Fuel Cell Hybrid Systems of Proton Motor.  As PM developed further he formed and led the design department, played a significant role in implementing the quality management system and rotated in October 2009 to the product management position, until he was appointed as CTO in March 2011.

Prior to joining Proton Motor, Manfred Limbrunner worked for 5 years in the pulp & paper plant engineering business. His main duties and responsibilities were in the design of complex plant sub assembly groups, supervising their mounting through external suppliers, plant engineering, customer support, supervising the mounting team as well as the project management.

Manfred Limbrunner studied mechanical engineering with a focus on design at the university of applied science in Kempten an started his career at Hoerbiger Fluidtechnik GmbH in 1995.

Personal profile Manfred Limbrunner