Ohmium International has announced the appointment of Dr. Markus Tacke as its new Chief Executive Officer, effective July 1, 2025 a leadership transition that marks a bold chapter in the company’s global growth journey. With more than 20 years of experience at Siemens, and recent leadership roles at Oerlikon and Siemens Gamesa, Tacke brings with him a deep reservoir of expertise in renewable energy technologies, operational scaling, and global market expansion. His appointment underscores Ohmium’s commitment to not only advancing its pioneering green hydrogen solutions, but also to building a leadership foundation capable of driving real-world impact in the energy transition.
Taking over from Arne Ballantine, Ohmium’s co-founder and outgoing CEO, Tacke steps into a role that demands both visionary leadership and operational precision. Ballantine, who led the company through its formative years, has been instrumental in shaping Ohmium’s reputation as a developer of high-efficiency, bankable PEM electrolyzers, widely respected for their rapid scalability and technical robustness. His legacy includes a suite of patents and significant industry recognition elements that now form the springboard for Ohmium’s next phase under Tacke’s guidance.
In welcoming Tacke, Ahmad Chatila, Chairman of the Board, highlighted the incoming CEO’s rare blend of technical depth and executive acumen, noting his proven track record in scaling complex energy businesses. This leadership transition comes at a pivotal time, as Ohmium seeks to deepen its commercial partnerships, expand its global footprint, and accelerate the deployment of next-generation green hydrogen technologies in markets increasingly focused on decarbonization and energy independence.
Dr. Tacke’s appointment reflects a strategic move toward growth not just in size, but in influence, innovation, and sustainability impact. As the world’s appetite for clean hydrogen accelerates, Ohmium is positioning itself at the heart of the movement bringing together breakthrough technology, seasoned leadership, and a clear vision for a more sustainable energy future. This transition is more than a change in leadership it’s a reaffirmation of Ohmium’s long-term mission to be a global force in powering the green hydrogen economy.
