Welcome to
RGEN
Climate action & Economic development
Leading sustainability consulting for measurable environmental impact.
RGEN helps organizations and companies understand, measure, and reduce their carbon footprint through comprehensive carbon audits, strategic planning, and implementation support. We deliver practical solutions tailored to local contexts, empowering organizations and businesses to achieve their sustainability goals while building internal capacity through specialized training and education.
Our expertise extends to conducting studies and implementing solutions across water infrastructure, renewable energy, waste management, and sustainable agriculture.
Our Services
We map carbon emissions, energy, and resource usage across value chains, propose targeted solutions, and support project implementation to accelerate the transition to a sustainable economy.
Our Vision
RGEN assists companies, organizations and institutions in transitioning to low-carbon, energy-efficient, and resource-conscious operations and value chains to:
Act for Climate
Contribute to global efforts to mitigate climate change.
Enhance Efficiency
Optimize operations for better performance, reduced waste, and lower costs.
Build Resilience
Strengthen adaptability to environmental and economic challenges.
With our team and partners, we map and analyze emissions, energy use, and impacts, identify gaps and risks, and help implement tailored solutions.
Our Skills
Data and Analysis
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Data Collection and Analysis: Expertise in gathering and interpreting data to drive informed decisions.
Research and Assessment
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Studies and Assessments: Comprehensive research and evaluation services to identify opportunities and challenges.
Engineering and Design
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Water Infrastructure: Innovative solutions for water management and infrastructure development.
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Rooftop Solar: Design and implementation of efficient rooftop solar systems.
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Nature-Based Solutions: Sustainable design practices that leverage natural systems.
Education and Training
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Awareness & Educational Tools Development: Creating impactful tools to educate and raise awareness.
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Facilitation of Trainings: Expert-led training sessions to enhance skills and knowledge.
Management and Advisory
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Project Management: Efficient planning and execution of projects to ensure success.
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Consulting and Advisory Services: Strategic advice and support tailored to your needs.
Our Clients and Partners
UNICEF
UNDP
PLAN INTERNATIONAL
THE ASIA FOUNDATION
MONRE
SWISSCONTACT
FRENCH EMBASSY
MERIEUX FOUNDATION
OXFAM
WFP
SNV
GRET
WORLD WATERNET
BORDA
PESTALOZZI CHILDREN'S FOUNDATION
SEVEA
NAM THEUN 2
CARITAS
NATIONAL UNIVERSITY OF LAOS
Meet the Team
Founder & Low Carbon Development Specialist
Matthieu de Peyrelongue
An engineer specializing in low carbon development, Matthieu delivers comprehensive sustainability solutions across diverse sectors. His expertise spans carbon reduction strategies, renewable energy, sustainable agriculture, water infrastructure, and waste management. Working throughout Southeast Asia, he transforms technical knowledge into practical pathways for sustainable economic development.
Project Assistant & Communications Officer
Katiya Anothai
A versatile team member with experience in climate change awareness and education. Katiya facilitates climate trainings and supports various functions including communication, sourcing, and data management. With a background in economics and multilingual capabilities, he effectively engages with diverse audiences while handling the practical aspects that keep our sustainability initiatives running smoothly.
Our network of experts
We collaborate with a diverse network of specialists in energy, environment, agriculture, and sustainability. Our experts bring regional and international experience, combining technical knowledge with practical field insights. Together, we deliver innovative, data-driven solutions to support sustainable development and climate resilience across Southeast Asia.
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Deputy Head of Administration and Planning Division
Mr. Sisavath Phimmasone
Mr. Sisavath Phimmasone is an agricultural specialist and deputy head at DALaM with over 15 years of experience in sustainable agriculture, soil science, and agroecology. He holds a Master’s degree in Sustainable Agricultural Resource Management and is pursuing a Ph.D. at Khon Kaen University. His work focuses on conservation agriculture, soil health, and empowering farmers through innovative, participatory approaches across Laos.
Technical Staff, Renewable Energy and New Energy Research Center, Ministry of Energy and Mines, Lao PDR
Mr. Sachai Saykhammoun
Mr. Sachai Saykhammoun is a technical expert in agricultural and renewable energy engineering, with academic training in Cuba and the Philippines. Currently serving at the Ministry of Energy and Mines in Laos, he specializes in biomass energy, solar technology, and automation systems. With hands-on experience in machinery, remote monitoring, and renewable energy systems, he contributes to advancing clean energy solutions and sustainable technologies across Lao PDR.
Energy Efficiency Engineer & International Consultant
Mr. Florent Paradis–Schindler
Mr. Florent Paradis–Schindler is an energy efficiency engineer and international consultant with expertise in building thermal performance, carbon audits, and renewable energy. With nearly two years of field experience and an academic background in engineering and applied mathematics, he currently lectures on HVAC systems and photovoltaic technologies in France while consulting on climate-related projects in Lao PDR. His work spans energy auditing, software-based simulation, and developing educational tools for sustainability.
Senior Management Consultant
Vilayvanh Saysanavongphet
Vilayvanh Saysanavongphet is a seasoned senior management consultant with over 25 years of international experience across Laos, Thailand, France, Australia, and the USA. She specializes in small and medium enterprise management, project counseling, and feasibility studies, having worked with government ministries, international organizations like the World Bank, and multinational corporations including Unilever. Currently operating as a freelance consultant since 2019, she holds a Master's in Business Administration from France and brings extensive multicultural expertise to her diverse portfolio of clients.
Graphic Designer / Illustrator
Manilla Chounlamountri
Manilla Chounlamountri is a talented graphic designer and illustrator based in Vientiane, Laos, with a BA in Fine Arts with Digital Design Emphasis and a minor in Business Administration from Seattle University. She has extensive experience working with international organizations including UNDP, UNODC, and UNRCO, as well as local businesses and cultural events. Her expertise spans digital illustration, logo and branding design, packaging, and event materials using Adobe Creative Suite and Procreate. Notable achievements include winning 1st place in The Vientiane Urban Furniture Design Competition and serving as Art Director at established agencies like MeIdea and Digital Monkey.
Software Development and Data Engineering Specialist
Sylvain Dorey
Sylvain Dorey is a software development and data engineering specialist with 10 years of experience in full-cycle project development. He has delivered digital transformation projects for western companies, Lao government ministries, and NGOs, including land registration systems and monitoring platforms. A French citizen with computer science and applied mathematics background, he specializes in adapting modern technical solutions to diverse organizational contexts.
