Zeynep Yöntem, Ph.D.

Executive Board

Chemical Eng. & Social Env. Sci.


Founder of Ekodenge., A total of 35 years national and international experience as an engineer and manager on environmental policy and integrated environmental management, including economic, scientific and/or legal aspects. She is chemical engineer with a doctor’s degree in Social and Environmental Science. She was a Hacettepe University lecturer.

Emre Yöntem

Chief Technology Officer

Electrical Engineer. M.Sc.


Emre is an Electrical Engineer, with a master’s degree in Information Technologies. He has experience on energy and environment focused data analytics, modelling, decision support services. He has been working as technical expert and coordinator in various international research and consultancy projects. He is the CTO and director of EcoWise - Ekodenge UK and a board member for Ekodenge.

Ebru Özkan

Chief Financial Officer


Chief Financial Officer of Ekodenge and company representative managing all administrative and financial operations. B.Sc. in business administration with a M.Sc. on management and organization.

Seda Yöntem

Architecture Group Manager

Architect M.Arch.


Seda Yöntem (M. Arch) is the founder and manager of Ekodenge's architecture group. She is a sustainable design expert, lecturer and researcher with more than 18 years of professional experience in applied architecture and project management focusing on energy efficient and environmentally friendly buildings and cities.

Gülfem İnaner Kılıç

Sustainable Building and Energy Expert

Mechanical Engineer, M.Sc.


Mechanical engineer with MSc. and energy efficiency expertise through thermal dynamic simulation tools (Designbuilder, HAP and IESVE) and computational fluid dynamics utilizing engineering simulation and analysis software Ansys, Fluent and Trnsys.

Tülay Çağlayan Özlü, Ph.D.

Senior Expert

Chemical Engineer


A total of 25 years experience in governmental organizations and NGOs in the areas of R&D&I management, national and international environment and energy policies, energy geopolitics, circular economy, industrial symbiosis, digitization, ICT, Horizon 2020, environmental NGOs. Holds M.S. in physical chemistry about nuclear energy waste and polymer science (membranes), Ph.D. in physical chemistry about solar energy storage from Hacettepe University and International Relations and EU Expert degrees from Ankara University and lectured “Energy Geopolitics and New World Energy Order” at Başkent University. Works as Business Development Consultant and Senior Expert at Ekodenge.

Elif Küçük Horasan, Ph.D.

Senior Expert

Environmental Engineer Ph.D.


Environmental Engineer with a Ph.D. degree from METU. A total of 11 years of experience on water pollution and its control, integrated watershed management, water quality assessment, urban water management, wastewater management, micropollutants, waste management, cleaner production, climate change adaptation and urban resilience. Currently working as senior expert and work package leader in various R&D and consultancy projects of the company.

Yeşim Tantekin Bilir

Digital Services Director

Industrial Engineer


She worked as project and team manager in the fields of production, space and information technologies. She has knowledge and experience of over twenty years in R&D project management, structuring and managing teams in different disciplines, planning, and executing customer and stakeholder relations, process analysis, design and improvement studies. On the way to Ekodenge's goals, as the Director of Digital Services, she takes on the responsibility of creating a sustainable structure that can improve itself while growing, with a success and result-oriented approach. He graduated from METU Industrial Engineering Department with a Bachelor's degree.
Rembrandt (1)

Rembrandt Koppelaar, Ph.D.

Senior Expert

Software Developer & Researcher


Researcher who writes about the future of energy, materials, society, technology, and the circular economy. He has published two books and several articles. He holds a PhD degree from Imperial College London's Centre for Environmental Policy. Rembrandt holds an MSc in Development Economics and Management, and a BSc in Economics.

Tuğrul Ünsal

Project Manager

Computer Engineer


Computer engineer with a bachelor's degree from Bilkent University. Over twenty years of experience at the software development industry. Deep expertise at every stage of software development lifecycle. He has managed and completed a wide variety of projects for the public and private sectors. Pmi certified project manager(PMP).

Dilek Erçal




Architectural expert with over 30 years of experience in the building industry as part of prestigious construction projects and application design teams, providing implementation level insight to the Ekodenge architecture team.

Duygu Başoğlu


Architect, Urban Planner


Built environment expert with a focus on sustainability and a double major degree from ITU on architecture and urban planning. Currently a practicing architect for energy efficient building projects and a contributor to R&D projects on sustainable cities.

Sevde Karayılan

Sustainability Expert

Environmental Engineer M.Sc.


M.Sc. degree Environmental Engineer from METU and worked on solid waste and waste-to-energy field. Currently working on R&D projects and consultancy services as an expert.

İrem İnce


Environmental Engineer, M.Sc.


Graduated from Environmental Engineering and she is continuing MSc. degree also in Environmental Engineering from METU. She worked on micropollutants, emissions from industrial activities, cleaner production, and EU environmental legislations. She is currently working on R&D projects and consultancy services as an expert.

Özge Yücel Bilen

Sustainability Expert

Environmental Engineer, M.Sc.


M.Sc. degree Environmental Engineer from METU and is completing her PhD Degree in the same department. Worked on water pollution and its control, cleaner production, climate change adaptation, water quality modeling and remote sensing subjects. Currently working on R&D projects and consultancy services as senior expert.

Parham Pooyanfar

Built Environment Sustainability Expert

Mechanical Engineer M.Sc.


Built environment sustainability expert with a BSc in Mechanical Engineering from AUT. Currently involved in sustainability-oriented R&D and consultancy projects of Ekodenge.

Umut Makascıoğlu


Electric and Electronic Engineer, M.Sc.


Holds B.Sc. in Electric and Electronic Engineering from Bilkent University. Completed M.Sc. in Engineering Business Management from University of Exeter in UK. Currently working on projects related to data management and IoT management of Ekodenge.

Enes Umcu

Sustainable Building Researcher and Analyst

Mechanical Engineer


Mechanical Engineer with a Bachelor’s degree from Gaziantep University. He takes part in R&D projects for Sustainable Buildings. He makes Building Energy Simulations and researches for improvements with programs such as Design Builder.

Beril Aba

Communication Specialist

Graphic Designer


Design and communication professional with a Bachelor of Arts (B.A.) in Graphic Design from Bilkent University. Joined the team in 2013 and holds experience working in the environmental services industry, handling the dissemination of projects, corporate identity design and the commissioning of print materials.

Tuğba Aslan

Project Management Officer

Industrial Engineer


She has bachelor's degree in Industrial Engineer from Ted University in 2020. After a while, she has experienced to work on field of quality management. Currently, she has been studying on Master of Business Administration in Hacettepe University. She is responsible for carrying out project management activities with respect to quality, time, labor, risk, and financial situation.

Özlem Şahin Kaya

Administrative Coordinator


Responsible for the personal and organizational administrative affairs of the company.

Alper Odaman

Software Developer

Computer Engineer


He graduated from Çankaya University, Department of Computer Engineering. Have experience in the product-driven application development process. He is currently working as a full-stack developer at Ekodenge.

Burak Yeşil

Jr. Expert

Industrial Engineer


He has a BSc. degree from Industrial Engineering Department of the TOBB Economy and Technology University (TOBB ETU) with an experience as junior sales consultant in the textile industry. He currently contributes to the financial tasks, business development and the R&D projects as a junior expert.

Yiğit Şan Yayalar

Business Analyst

Industrial Engineer


He received his undergraduate degree from TED University Industrial Engineering department in June 22 and also completed the Applied Data Analytics Second Field Program in TED University. He has been studying on Master of Industrial Engineering in TED University. He is currently working as a business analyst and contributes to increase efficiency, strengthen the business process and identify business areas that can be improved.