Our Company

OUR VISION

STEM is a spin-off from Mines de Paris and was created in November 2020

We aspire to be at the forefront of GreenTech in dehumidification and water purification. We are determined to make our contribution by developing innovative and environmentally friendly technological solutions. We want to become an industrial reference recognized for the reliability of its products and services which meet the growing needs of society while minimizing their impact on the ecosystem.

Let's raise industrial standards: Quality, savings, eco-sustainability

THE TEAM

President

Frédéric Walland

Frédéric is in charge of the management and business development of STEM. A graduate of an international business school, he previously worked in different Greentech companies on various subjects such as wind power, lighting, water, or energy.

Managing Director

David Poizat

David joins STEM in 2023 after spending 12 years at QUATTROCENTO, a life sciences-focused startup studio, where he orchestrated the challenging transition from academic innovation to industrial and commercial product for all subsidiaries of the group.

Motivated by STEM's 'Greentech' ambition and eager to leverage his skills in developing innovative businesses in a new application domain, David assumes the role of Managing Director and COO. His primary goal is to execute the company's strategy, drive product development, and lay the foundations for its success.

CTO

Rasha Mustapha

Doctor in Energy and Process Engineering from PSL-Mines Paris University, Rasha is a specialist in the modeling of innovative energy-saving membrane exchangers. It was during her post-doc that she successfully created a prototype of such an exchanger. Co-founder of STEM, she heads its R&D.

CSO

Assaad Zoughaib

Assaad is a professor at Mines Paris, director of the Energy master's program, and head of the Thermodynamics of Systems research group at CEEP. The NEODRY technology stems from his research at Mines Paris. He co-founded STEM and has been serving as the Scientific Director since 2021.

R&D engineer

Lyne Hamzeh

Holder of a Process Engineering degree, specializing in Industrial Chemistry and Petrochemistry from the Lebanese University, Lyne then consolidated her skills by pursuing a Master 2 in Energy at Mines Paris-PSL.

Guided by her passion for technological innovation, she joined the STEM team in 2023, as a Research and Development Engineer.

Currently, she contributes to projects aimed at optimizing energy use and designing innovative solutions.

R&D Engineer

Rolando Argandona

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