Ralf Beier is Partner and Managing Director of Aircrete Europe since 2018. After completing his Matric in South Africa he moved to Germany where he started his career in the building materials technology business. Prior to joining Aircrete he was the CEO of the Hess Group and then also of the TopWerk Group. He holds a degree in business administration from the VWA Osnabrück, Germany.

Ralf has extensive international business experience and has also been a director of companies in China, India, Russia and France. His focus is on international market development and corporate strategy.

Corniels Tavenier is Partner and Commercial Director of Aircrete since 2016. Before joining Aircrete Corniels worked at CRH, one of the world’s largest building materials companies, as a Business Development Manager.

Prior to CRH, Corniels worked as a Senior Associate in the Dutch office of M&A International, the world’s leading M&;A alliance. In his previous roles, Corniels was responsible for managing international buy- and sell-side processes, ranging from family-owned companies to divestments for corporate multinationals.

Corniels holds a Master’s degree in Finance and Strategic Management from Copenhagen Business School, Denmark.

Corniels is focusing on the Group’s commercial strategy and new business development.

Koen van Boggelen is Partner and COO of Aircrete since 2015. He holds Bachelors and Masters Engineering degrees from the Delft University of Technology in the Netherlands. Koen remains an active alumnus serving as both guest lecturer in the course “Processes in a Project Based Environment” within the University-wide Project Management minor, and as Chairman of the Board of the Alumni foundation.

Before joining Aircrete, Koen worked as Senior Advisor in the Advisory practice of Ernst & Young, where he helped his clients to execute their projects and improve their business processes. Prior to this, Koen worked as a Project Manager at Grontmij, a major engineering firm in the Netherlands, where he executed several projects and improved the company’s overall project structure.

Kees Krowinkel is the Financial Director of Aircrete since 2022. He has comprehensive experience in corporate controlling, business controlling, export financing and risk management.

Before joining Aircrete, Kees worked as a Corporate Controller in Topwerk Group and Business Controller in Hess AAC Systems. In these previous roles, he was mainly responsible for treasury management, financial reports, annual financial statements and administrative management.
Kees holds a Bachelor of economics in Business Administration.

Kees is focusing on Aircrete’s financial management and on financially structuring Aircrete’s projects, including export & project financing.