Callax Holding GmbH - Dedicated to energy investments for a greener planet.

About Us

  • The Callax Holding GmbH is a multi-national investment company with its focus on renewable energies. The investments and stakes are in energy-supplier organisations (electricity, gas, heat-flow in Germany & Austria) as well as in services for e-mobility and marketing of innovative energy solutions of any kind.

    Our constant endeavor is to develop every known advantage for our customer, for an easy and seaming less use of all our services.

    We are also venture capitalist, specialised on innovative energy solutions, e-mobility, services & e-commerce solutions in all segments of energy supply.

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Contact Us

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  • Do you have an idea, a solution for the challenges of the energy transition or your own start-up project within our field of activity?

    Then send us an email at