GEOCYCLE
Geocycle Hellas is at the forefront of sustainable waste management, supporting Greece’s transition towards a circular economy. As the trusted partner for municipalities, industries, and commercial organizations, we provide integrated waste management solutions that transform today’s challenges into tomorrow’s resources.
At the heart of our approach is the recovery of valuable materials through recycling and pre-processing, ensuring their reintegration into the economy. Complementing this, we apply co-processing—an innovative technology that uses non-recyclable waste as a resource within the cement production process. Through co-processing, we recover both energy and materials simultaneously, reducing dependence on fossil fuels and virgin raw materials, lowering CO₂ emissions, and diverting waste from landfills towards circular solutions.
About the partnership
Geocycle Hellas will contribute to the Theseus H4C Project by providing its long-standing expertise in sustainable waste management, materials recovery, and alternative fuel production. The company will actively participate in developing and testing circular economy solutions that demonstrate how industrial by-products and municipal waste can be transformed into valuable resources. Leveraging its operational facilities and technical know-how, Geocycle will support the implementation of pilot actions, data collection, and environmental performance monitoring. Additionally, it will assist in defining best practices for co-processing and waste valorization.
Meet the Team
Nikos Theocharis
Environmental Engineer MSc – Waste Management Services Manager
Mr. Nikos Theocharis is an Environmental Engineer with extensive experience in waste management in Greece, including many years in the operation of material recovery facilities. His expertise spans the planning,
monitoring, and execution of waste management studies and projects, with a strong focus on optimizing recovery and recycling processes. Throughout his career, he has been committed to improving efficiency and sustainability in waste management practices, contributing to
circular economy initiatives and advancing environmental performance.
Andreas Oikonomakis
Environmental Specialist MSc,
MBA – MRF Plant Manager
Mr. Andreas Oikonomakis, is an Environmental Specialist with an
academic background in Geology, Environmental Engineering, and
Business Administration. He has 10 years of experience in the field of solid and liquid waste management, processing, and treatment, both in operations and in the study and design phases. He is currently working as the Plant Manager of the largest MRF in the Attica Region, located in Koropi. His career objective is to leave a lasting footprint in the development of a more circular economy that fosters sustainability.
Stella Spiropoulou
Environmental / Civil Engineer
New Projects Engineer
Mrs Stella Spiropoulou is a dedicated Civil Engineer with a strong emphasis on environmental infrastructure, specializing in the planning, design, and implementation of sustainable projects that enhance community well-being. Her expertise spans the full project lifecycle of wastewater treatment plants, and solid waste management
systems, where she integrates innovative engineering solutions with regulatory compliance and cost efficiency. In her current role as New Projects Engineer in Geocycle, Stella delivers projects that balance technical excellence with environmental stewardship—building resilient infrastructure Andreas and improving existing for a cleaner, more sustainable future.
George Anastasakis
Informatics and Telecommunications MSc Operations Supervisor
Mr. George Anastasakis, with a background in information systems and a long-term experience in the waste management sector from many positions as a result of his passion in optimizing waste management processes, he ensures efficiency and sustainability by reducing costs, and applying the highest
standards of quality and safety, by analyzing data trends to guide decision-making and cost reduction initiatives while enforcing rigorous safety protocols. Committed in transforming waste to value for a greener future.
Funded by the European Union under the Horizon Europe Innovation Actions programme (Grant Agreement No. 101178059), within the topic HORIZON-CL4-2024-TWIN-TRANSITION-01-38: Hubs for Circularity for Industrialised Urban Peripheral Areas (Processes4Planet Partnership). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or HADEA. Neither the European Union nor the granting authority can be held responsible for them.
