Our Structure

Transmark Holdings N.V. is the holding company of an international group of companies including Transmark N.V., Transmark Renewable Products B.V., Transmark Subsea AS and
Dearman Engine Company Ltd.

The primary activity of these companies is the co-ordination of the international and national activities of Transmark Holdings N.V. with regard to the exploration of geothermal energy, the trade of industrial components and subsea systems and deliver zero-emission power and cooling.

The company and its subsidiaries are operational in The Netherlands, The United Kingdom, Norway, Turkey and Chile. The company is 100% family owned and is registered in Amsterdam, The Netherlands.

  • Energy

    Transmark Renewables

    Transmark Renewables is an international company based in Amsterdam, with operating companies in Chile, Turkey and the Netherlands. We are investing worldwide in the development of geothermal energy, specializing in project development, financing, and implementation, to maintain the base load of the energy chain.

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  • Infrastructure

    Transmark Subsea

    Transmark Subsea manufacture a broad range of qualified cable and cable systems for the distribution of electrical signal, power, and fibre optics to the offshore subsea industry. Our production facilities are custom designed to meet our manufacturing needs and ensure efficient, high quality production, and our highly skilled professionals can assist with even the most demanding projects.

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  • Cooling & Power


    Dearman technologies uniquely harness liquid nitrogen to deliver zero-emission power and cooling. We are developing and demonstrating a portfolio of proprietary technologies, products, and services, which deliver significant reductions in operating cost, fuel usage and emissions. All at low capital cost. With our world-class engineering expertise, Dearman are well-placed to make the world a cleaner and cooler place.

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  • Museum of the Canals

    Museum Het Grachtenhuis

    The company’s headquarters also houses Museum Het Grachtenhuis, in the centre of the stunning canal ring of Amsterdam. In five interactive rooms, you can witness the history of the Amsterdam canals, where clever use of multimedia brings the story of the canals to life. The museum was initiated in 2011 by Mr. Gerard Krans, the owner of Transmark.

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