Team Members

  • Michael Geissmann


    Michael is CEO at Astrol since 2016. He is also a Vice President at Sun.King Power Electronics Group, overseeing the European business of the group.

    Michael Geissmann CEO Atrol
  • Andy Stöckli


    Andreas (Andy) Stöckli. Inventor & author. Our visionary CTO since 1996, shapes Astrol's success with his technical leadership.

    Andreas Stöckli Astrol
  • Jeroen Visser

    Managing Director at Astrolkwx

    As the managing director of AstrolKWx, Jeroen always encourages people to further develop themselves personally as well as professionally.  

    Jeroen Visser
  • Urs Weiersmueller

    Assembly Specialist

    Urs is a material and manufacturing expert with his main focus on high-voltage assemblies.

    Urs Weiersmueller
  • Stefan Siegrist

    Electronics Engineer

    Stefan Siegrist, Electrical Engineer at Astrol since 2005, pioneers new hardware/software developments, focusing on customized electronics.

    Stefan Siegrist
  • Josef Helfenstein

    Electronics Technician

    Josef is responsible for production and testing of our products, with a main focus on solid-state breakers and power switches.

  • Daniel Kuhn

    Electronics Engineer

    Daniel Kuhn, our Embedded Hardware and Software Engineer, shapes cutting-edge solutions for our innovative projects.

  • Benjamin Schnider

    Electronics Technician

    Benjamin Schnider, our skilled Production Worker, ensures quality in gate units, power supplies, and electronics.

  • Armin Saule

    PCB Designer

    Armin Saule, our skilled PCB-Designer at Astrol. Excels in meticulous PCB layout for gate units, power supplies, and custom electronics.

    Armin Saule
  • Adrian Jäggi

    Software Engineer

    As our Software Engineer, Adrian is mainly responsible for application software and controller development as well as the commissioning of large systems.

  • Florian Medjimorec

    Mechanical Engineer

    Astrol's Mechanical Engineer, Florian Medjimorec, with 3 years of experience, excels in concept, design, and problem-solving.

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  • Marius Marti

    Electrical Engineer

    Marius, our Electrical Engineer. He designs customer-specific solutions and PCBs focused on power electronics.

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  • Ramon Magatti

    Electrical Engineer

    Ramon Magatti, Astrol's talented Electrical Engineer excels in device conceptualization and has a collaborative spirit.

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  • Oldrich Sosolik

    Since joining Astrol in October 2021, Oldrich Sosolik has been an integral part of our team, driving innovative projects through close collaboration with colleagues.

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  • Susanne Meier

    Backoffice Manager

    Our new Backoffice Manager. She oversees administrative tasks related to purchasing and sales. In her private life, she enjoys traveling, biking, surfing, and photography.

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  • Aniket Sarode

    Technical Sales Consultant at Astrolkwx

    Motivated to contribute to greener energy projects Aniket moved to Holland and got himself engaged in energy related activities.

    Aniket Sarode
  • Ivanne Quist

    Office Manager at Astrolkwx

    Our jack of all trades, Ivanne. She is involved in every step of the process. From procurement and shipping goods to after-sales, she knows it all!

    Ivanne Quist
  • Peter van den Berg

    Sr. Technical Sales Consultant at Astrolkwx

    Peter's extensive knowledge of power electronics, electronics and IT makes him the perfect sparring partner to electrical engineers.

    Peter van den Berg
  • Ilse Dijksman

    Marketing Manager at Astrolkwx

    Ilse started as a Marketing professional in 2018. She expanded her activities at Astrolkwx with sales and customer loyalty.

    Ilse Dijksman
  • Elise Ouwehand

    Back Office Support Employee

    Elise has recently joined Astrolkwx as a Back Office Support Employee, handling tasks such as order entry, invoicing, and order monitoring.

    Elise Ouwehand
  • Ismael Karbass

    Purchase Manager at Astrolkwx

    Ismael is our dedicated technical purchaser. Besides purchasing he's also partially involved in project sales and product management.

    Ismael Karbass

Send your question(s) to Elise