UK Team

Huw Jones

Mark Simpson

Robin Williams

Paul Chiplen

James Walker

Matthew Pike

Tor Tennant

Issie Hatfield

Chiara Martin

George Syder

Megan Jones

María Jiménez

Rachel Brooks

Stephen Morris

Serena Coccioli

Prince Narkortu Teye

Kate Danter

Rebecca Barton

Nathaniel Attenborough

Katienne Miranda

Will Hooton

Megan Edwards

Johanna Grosssteinbeck

Zach Clarke

Leonora Fisher

Lorenzo Gubbini

Lucy Dennis

Charlotte Gadd
Huw Jones
Huw joined CO2balance as an investor in July 2008, when he became the Financial Director and Company Secretary. Huw is a Chartered Accountant who was previously the Financial Director and Company Secretary of Williams Medical Supplies plc. Prior to joining William Medical Supplies plc Huw was self-employed for 15 years running several businesses. Huw qualified as a Chartered Accountant with Moores Rowland in London, and gained his practice certificate from Coopers and Lybrand in Jersey, following which he was the Financial Director for a number of trading companies.
Mark Simpson
Founder of CO2balance, Mark’s early background was as a Research Chemist with Imperial Chemical Industries (ICI). During his time with ICI, Mark specialised in computerisation and computer networking, where he developed the first PC based Laboratory Information Management (LIMs) system for the company. He also architected and implemented the companies’ first peer to peer PC network, which, at the time, was one of the first in the UK.
Mark went on to join Philips Electronics’ Computing Division, which later became part of European computing giant Atos Origin. As the Chief UK Technical Architect, Mark was responsible for bringing internet access and networking to the UK part of the company in the late 1990s.
Mark moved on to found CO2balance in 2003, with the vision to mitigate climate change using carbon offsetting as the primary vehicle to achieve this. Under Mark’s stewardship, CO2balance soon became one of the leading carbon management companies in Europe and was a key and founding player in the setting up of ICROA. As the market developed, Mark saw the opportunity to extend CO2balance’s reach, and to move further in to the carbon project developer space. To this end, Mark identified the East African region as offering an opportunity to provide ethical and community-based climate finance projects. In 2006, CO2balance was established as a company in Kenya, marking the beginning of CO2balance’s instrumental role as a carbon project developer in the region.
Huw and Robin joined Mark on the Board of CO2balance in 2008, and CO2balance has since secured its place as a globally renowned project developer. Mark has led CO2balance to extend its project reach into Southern Africa, Western Africa and Asia. As Managing Director, Mark continues to oversee CO2balance’s global operations and ensures that it operates in an ethical and efficient manner.
Robin Williams
Robin joined the CO2balance Board of Directors in July 2008 as an investor. Prior to joining CO2balance, Robin worked in Pharmaceutical Sales before becoming the founder and major shareholder of Williams Medical Supplies plc which was sold to private equity in 2007.
Paul Chiplen
Paul has been working for CO2balance since its creation in 2003 and now leads on sales and marketing, as well as wider strategy planning for the company as a Board Director.
Paul has a BA in Geography from Staffordshire University and well as a PgC in Sustainability and Environmental Management. Prior to joining CO2balance he worked in the public sector for 10 years with Somerset County Council, mainly within its Environment Department, specialising in waste management and recycling.
James Walker
James joined CO2balance in February 2018 and oversees CO2balance’s project portfolio in the Eastern Africa including Uganda, Rwanda and Malawi; as well as Sierra Leone and Vietnam.
James graduated with a 1st class Law degree in 2013 and worked in the financial sector for 2 and a half years. In 2017 he completed his MSc in Environmental Management from the University of the West of England. His masters research focused on rural water and sanitation in Uganda and was supported by the International Water Security Network.
James’ experience with environmental and development work includes community-based development, teaching and conservation in Thailand, WASH research and project implementation in Uganda, reforestation and water conservation in India and practical conservation work in England and Wales.
Matthew Pike
Matthew joined the CO2Balance team in August 2020 and supports our safe water and improved cookstove projects in Mozambique, Zambia and Eritrea, whilst exploring future carbon project opportunities in Latin America.
Matthew holds a BSc in Global Development and Sustainability from Bath Spa University. His dissertation research focused on the complex climate and political factors that influenced a major drought which impacted the water supply of 25 million residents of Sao Paulo, Brazil.
Matthew joins the team with several years of experience working in research and project roles both in the UK and Brazil. Matthew also spent a short time in Kenya, where he supported local entrepreneurs to develop their small businesses.
Tor Tennant
Tor joined CO2balance in August 2020 and manages all CO2balance improved cookstove projects in Rwanda and the development of any new projects. Tor is also responsible for managing the digital transformation of the CO2balance portfolio.
Tor has an MSc in Environmental Technology, with a focus on Environmental Economics and Policy, as well as an MSci in Geology, both from Imperial College London.
During her MSc, Tor worked on areas that combined scientific knowledge, policy and engineering to solve environmental problems and address sustainability. Her thesis, supported by the Imperial College Strategic Fund, was a collaborative project with stakeholders to assess the sustainability and environmental impacts of vertical farming, an innovative technology with the potential to reduce associated impacts of traditional agriculture.
Issie Hatfield
Issie joined the CO2balance team in January 2021 and manages our Safe Water projects in Uganda and Electric Cookstove project in Nepal.
Issie holds both a BSc in Geography from the University of Leeds and a MSc in Sustainable Development from the University of Exeter. Her MSc thesis investigated integrative water governance as a mechanism for gender mainstreaming in SDG implementation in Official Development Assistance recipient countries. The research findings have contributed towards an academic paper proposal focusing on the role of gender in water resource committees and how integrated approaches can meaningfully contribute to achieving the UN SDGs.
Issie comes into this role with programme management and sustainable development experience. Having participated in humanitarian projects in Ethiopia and Peru, and project managed a research trip to the Middle East, Issie has experience of development projects in complex environments and is particularly interested in community engagement, water resource committees and marginalised communities.
Chiara Martin
Chiara joined CO2balance in November 2019 and works predominantly supporting safe water and improved cookstoves projects in Mozambique and Zambia.
Chiara holds a MCs in Environmental Management from the University of Udine (Italy). Her final dissertation investigated the environmental, social and economic potentials for a small community in the Italian Alps achieved throughout the valorisation and promotion of the local agrobiodiversity.
Chiara’s experience in environment and development includes a placement in a Development Agency in Spain in support of farmers and the promotion of organic farming.
George Syder
George joined CO2Balance in May 2021 and works on safe water projects in Malawi, Sierra Leone, and Zimbabwe. He is also interested in exploring nature-based solutions to climate mitigation.
George holds a BSc in International Wildlife Biology from the University of South Wales and an MRes in Wildlife Conservation from the University of Southampton, with a focus on the ecosystem service benefits of ecological restoration, for which he developed projects in both Kenya and the UK.
He comes into the role with experience in co-operating with local communities as a biodiversity researcher in Madagascar and prior to joining CO2Balance, he spent six months at the UNEP World Conservation Monitoring Centre investigating ecosystem services, particularly climate mitigation in restoration projects. Through his degree and research conducted at UNEP-WCMC, he continues to contribute to ongoing journal articles.
Megan Jones
Megan joined CO2balance in July 2020. She manages our Safe Water projects in Gambia and Togo and leads our research on renewable energy project opportunities.
Megan graduated from the University of Leeds in 2020 with a BSc (Hons) in Zoology. Throughout her degree she gained a strong interest in the causes and effects of climate change. Her dissertation focused on analysing the effect of climate change on marine biodiversity and populations around the British Isles. During her degree, Megan also carried out research on Shamwari Game Reserve, South Africa, which focuses on restoring and conserving the natural environment.
In 2018 Megan completed a one-year research placement with the Ocean Conservation Trust, working at the National Marine Aquarium in Plymouth.
María Jiménez
Maria joined CO2balance in May 2021 and works on Safe Water projects in Zambia, Eritrea, Burkina Faso and Guatemala. She is also exploring expansion opportunities in Latin America.
With a background in Economics and International Business, she completed a United Nations internship at ECLAC in Chile which inspired her to pursue a Msc in Sustainable Development at the University of Sussex, from which she graduated in January 2021. Throughout her Master, she conducted extensive research on the role of technologies in sustainability pathways like Degrowth for her dissertation.
Some of her previous working experience has been in the private sector in Spain, working for companies like IBM. She has also previously worked for the Brighton Energy Cooperative and has developed several volunteering roles with NGOs where her work was related to Climate Justice advocacy and social inclusion for asylum seekers.
Since May 2022 she is the Project Manager for the Zambia Safe Water Project, as well as a co-manager for the Guatemala Cookstove Project.
Rachel Brooks
Rachel joined CO2balance in August 2021, and supports our safe water projects in Mozambique and Zambia, as well as the planned rollout of our improved cookstove project in Guatemala.
Rachel brings with her a wealth of research experience in the fields of biofuels and applications of CO2 utilisation, as well as 14 years’ experience of living and working in the islands of the South Pacific. She will be keeping a keen eye on this part of the world for future project development opportunities.
Prior to joining CO2b, Rachel founded a small NGO working in sustainable development in Vanuatu (South Pacific), having started out as a mathematics and science teacher on Pentecost Island. She also volunteered as an environmental consultant within a range of organisations, such as the London Climate Change Festival.
Rachel is a Natural Scientist by training, holding an MSci in Natural Sciences from Durham University, and a Green Chemistry, Energy and Environment Research Masters from Imperial College London.
Stephen Morris
Stephen joined CO2balance in March 2022 and works on safe water and cookstove projects in Kenya and Zimbabwe. He is leading the Asia research group and involved in Nature-based Solutions research.
Stephen studied at the University of Sheffield and has a BSc in Economics and more recently graduated in October 2021 with an MA in International Development. During his Master’s he worked on a virtual research project in Sierra Leone and completed his thesis in partnership with a charity in Mozambique, investigating the impact of non-Timber Forest Product commercialization on community vulnerability. He previously worked at Devon County Council as an Economic Research Assistant and spent several months gaining experience at a climate bond investment organization.
He also brings in-the-field development project experience having worked in rural Nicaragua for three months coaching business skills to young entrepreneurs, which enabled them to gain investment for a small enterprise and boost the local microeconomy.
Serena Coccioli
Serena became a Carbon Project Officer with CO2balance in March 2022. Her focus is on monitoring our safe water projects in Mozambique and Zambia, developing cookstove projects in Guatemala and scoping new projects as part of our Latin America and Blue Carbon research groups.
Serena speaks Spanish and Italian as well as French and has working experiences in Colombia, Switzerland and Indonesia. As a Colombian-Italian she has lived in the coffee growing region of Colombia where she also researched the interconnectedness of agroforestry and climate change.
During her Ecological and Environmental Sciences degree at the University of Edinburgh, Serena undertook ecological surveys, designed her own research projects and engaged in literature research to produce project reports and policy briefs. As a Research Assistant for the coral reef monitoring programme in the Wakatobi National Park (Indonesia), she certified in Reef Survey Techniques and is very interested in diving into Blue Carbon opportunities.
Serena brings to the team a variety of skills from partner outreach to project management and is excited to continue contributing towards climate action.
Prince Narkortu Teye
Prince joined CO2balance in October 2022. Supporting our Safe Water projects in Togo, Gambia and Malawi, Prince also works as part of our research team looking into opportunities in Africa. He also has interest in exploring sport as a tool for climate action.
Prince holds a BSc. in Biological Science from the University of Science and Technology in Ghana and an MSc. in Sport and Health Sciences from Brunel University London in the UK.
With a wealth of experience working in health, sports, media and entrepreneurship, he brings his multidisciplinary expertise to supporting projects at CO2balance.
Kate Danter
Kate joined CO2balance in October 2022 and predominantly works on our improved cookstove projects in Rwanda and safe water projects in Uganda, alongside researching new opportunities.
Kate has an undergraduate background in Biology from the University of York, where she gained a passion for sustainability and undertook a research field trip to Tanzania. She then went on to study for an MSc in Sustainable Development from the University of Exeter. During this time, she undertook a placement with CO2balance, producing a research report on the blue carbon storage potential of seagrass. Whilst completing a dissertation on the potential for funding agroforestry in the UK through carbon offsetting, she became interested in pursuing work within the voluntary carbon market further.
Kate has previously volunteered for the Neotropical Primate Conservation and participated in social sustainability research with local stakeholders in Cornwall.
Rebecca Barton
Rebecca joined CO2balance in January 2023, and will be working on our safe water and improved cookstove projects in Eritrea and Ethiopia, as well as researching for new projects, such as those involving Nature Based Solutions.
Rebecca has an undergraduate degree in Physics, as well as a foundation degree in Art and Design. She has keen interest in travelling, spending six months teaching in English in Cambodia, as well as experiencing Kenyan culture by staying with a Maasai tribe. These experiences, along with a passion for sustainability led to an interest in how the carbon market can be used to finance sustainable development projects to help communities most impacted by climate change.
After teaching in Cambodia, she completed a PGCE at Sussex University and became a science teacher at a secondary school in Worthing. Before starting a role at CO2balance she undertook a master’s degree in Global Sustainability Solutions at the University of Exeter, where she gained valuable knowledge of sustainability problems and the complexities in tackling them, as well as developing her interest in the voluntary carbon market and nature-based solutions.
Nathaniel Attenborough
Nathaniel joined the CO2balance team in June 2023 and will be predominantly working on our Nature-based Solutions projects.
Nathaniel has an undergraduate background in Biological Sciences from Durham University, during which time he joined the Fulbright Study of the US Institutes program on Environmental Issues based at the University of Oregon. This culminated in the presentation of research to the Bureau of Cultural and Educational Affairs in Washington D.C., and in the development of a refugee integration project focussed on environmental education.
He then studied a Master’s Degree in Risk, also at Durham, researching cloud-based technologies for environmental monitoring such as Google Earth Engine. This also served as a demonstration of how cloud-based approaches can be used to present technical data to a non-specialist audience.
After graduation, Nathaniel worked as a Business Intelligence Consultant at FDM Group, being placed at HSBC within the Corporate Risk team. This experience provided him with a range of technical skills which he is now looking to apply within the field of climate finance at CO2balance.
Katienne Miranda
Katienne joined CO2balance in April 2023 and primarily works on the safe water projects in Mozambique and Zambia, while researching possible projects utilising renewable energy.
Growing up in Goa, India, Katienne, has gained a deep understanding of sustainability practices, and the importance of community involvement in strengthening sustainability practices and conservation to the natural environment. In 2021, Katienne moved to the UK to pursue an MSc in Sustainable Development at the University of Exeter, aided by the G.R.E.A.T Scholarship from the British Council.
Will Hooton
Will joined CO2balance in June 2023 as a Carbon Projects Officer. He will contribute to our safe water and cookstove projects in regions of Kenya and Uganda.
Will holds an undergraduate degree in Chemical Engineering from the University of Loughborough. During his travels, he explored rural areas of Vietnam and witnessed the devastating impacts of wildfires in Australia. These experiences motivated him to pursue further education in sustainability science in Finland, where he completed courses in System Transition and Pollution Control. In addition to his studies, Will actively volunteered for community-based projects in Cornwall and even established his own tutoring business. He plans to leverage his scientific background and diverse experiences to support community projects throughout CO2balance.
Megan Edwards
Megan joined CO2balance in April 2023 and works on our Safe Water and Improved Cookstove projects in Zambia, Burkina Faso, and Guatemala. She is also involved in researching potential projects in renewable energy and blue carbon.
During her travels, Megan volunteered at a women’s school in Nepal as part of a sustainable development and women’s empowerment programme. This allowed her to witness first-hand the meaningful impact development projects can have on the quality of people’s lives.
Megan went on to pursue a BA in Geography at the University of Manchester, where her research explored methods for communicating climate change and how these methods can help engage audiences and mobilise them to take action. Her degree, alongside additional modules in Earth Sciences and Politics, further deepened her interest in sustainability, development, health, and nature. After graduating in 2020, she worked in the outdoor plant area at a garden centre in Cardiff. In this role she promoted sustainable practices and biodiversity conservation to customers, specialising in native plant species.
Johanna Grosssteinbeck
Johanna joined CO2balance in October 2023 and works on our Safe Water and Improved Cookstove projects in Malawi and Eritrea. She is also interested in the development of Asia research group and potential future projects in the area.
Johanna holds and BSc in Business and Management with proficiency in Mandarin and recently completed an MSc in Global Sustainability Solutions. Her thesis focused on investigating tea plantations climate resilience and reducing smallholder farmers climate vulnerability in Yunnan, China. She worked on this project in collaboration with the Met Office, developing the research collaboration under “Climate Science for Service Partnership China” initiative.
During her Masters Johanna worked as a research assistant for an NPO called Arctic Basecamp, informing on Arctic risks and bridging the gap between science research and its effective communication to non-experts. She has gained a deep understanding of user engagement to foster sustainable practices within communities and is excited to apply her skills within the community projects at CO2balance.
Zach Clarke
Zach holds a BSc in Geology from the University of Edinburgh and an MSc in Global Sustainability Solutions from the University of Exeter. For his postgraduate thesis, he collaborated with Seaweed Generation to investigate the social dimension of the Sargassum crisis in Antigua and Barbuda and its application for ensuring successful stakeholder engagement for new blue carbon solutions.
His interest in blue carbon and the voluntary carbon market was further enhanced through an internship with CO2balance where he researched the potential of using seaweed as a carbon removal mechanism within different regions of Africa.
He looks forward to developing his skills within carbon project development and seeing the impact of these projects in action.
Leonora Fisher
Leonora joined CO2balance in November 2023 as a Carbon Projects Officer. She will contribute to our safe water and cookstove projects in Ethiopia. She is also interested in researching nature-based solutions to climate mitigation.
Leonora holds a BSc in Geography from the University of Bristol, where her research explored how different cultivation techniques impact soils, and recently completed an MSc in Climate Change at University College London (UCL). Her thesis focussed on the resilience of soil biodiversity to climate change. She worked on this project in collaboration with the Basque Centre for Climate Change in Bilbao and is publishing these results soon.
Since graduating, she volunteered on permaculture farms and eco-projects in Spain, learning about sustainable ways of living in a changing climate. She is excited to develop her skills and contribute to climate action with CO2balance.
Lorenzo Gubbini
Lorenzo joined CO2balance in November 2023. He supports safe water and improved cookstove projects in Burkina Faso, Nigeria, Togo, and Guatemala.
Lorenzo completed an MSc in “Strategic Leadership towards Sustainability” in Sweden. His final thesis investigated the deployment of decentralized solar energy systems for remote communities in Southeast Asia, and their potential contribution to a renewable energy transition in the region.
His experience in climate and development includes working for a circular economy project in Peru, supporting the mitigation of the environmental impact of fast fashion in the country.
Lucy Dennis
Lucy joined the CO2balance team in November 2023 and will work on safe water and cookstoves projects in Nigeria and Kenya.
Her background includes working at The Eden Project, sparking a career change and return to studying. At Eden, she gained insights into project operations and educational practices emphasizing interconnectedness between living things and nature. Taking a sabbatical to South East Asia and Australia, Lucy observed diverse cultural and social approaches to environmental engagement.
During her Environmental Management and Sustainability degree at the University of Plymouth, Lucy engaged in fieldwork in Iceland, implementing conservation projects in the Thorsmork mountain range and witnessed firsthand the positive impacts environmental and climate-based solution projects have on national and international communities. She looks forward to building her communication and project development skills and is excited to see the impacts the projects have in Nigeria and Kenya.
Charlotte Gadd
Charlotte joined CO2balance in November 2023 as a Carbon Projects Officer where she is working on the Uganda Safe Water projects. Charlotte has a BA in History and a BA in International and Environmental Studies. In 2023 she completed a MSc in Sustainability Planning and Environmental Policy at Cardiff University where her research focused on the impacts of environmental mitigation and adaptation policies on people with protected characteristics.
Charlotte previously spent time working for an equality and housing charity as a Communications and Marketing Officer and also spent four months volunteering in rural Tanzania delivering a livelihoods project to young entrepreneurs to improve the local microeconomy.
Overseas Team and Consultants

Grace Lilly Ayoo

Isaac Okaka

Sandra Manana

Menelisi Falayi
Grace Lilly Ayoo
Grace joined CO2balance in June 2015 as the Project Development Consultant in Uganda and is responsible for managing all aspects of our in-country operations with the help of our local field consultants and NGO partners. She overseas the company’s projects across Uganda, working closely with our local partner organisations, community leaders and government to ensure that everything runs smoothly.
She holds a degree in Tourism and Public administration and has also completed courses in Project Planning and Management.
Prior to joining CO2balance, she worked as an administrator for three years and a carbon finance specialist for two years where she gained experience working on a variety of projects in the field of household energy efficiency.
Isaac Okaka
Isaac Joined CO2balance in May 2015 as a project consultant and is responsible for coordinating the monitoring, community engagement and CSR activities for our projects in over 120 villages in northern Uganda.
Isaac has 9 years’ experience in the field of rural water supply, sanitation and hygiene transformation and community-based project design and management. He has worked as a WASH specialist on several projects in northern Uganda, including the Global Water Initiative program.
Isaac holds a PGD in Projects Monitoring and Evaluation from Uganda Management Institute and a Bachelor’s degree in Public Administration and Management.
Sandra Manana
Sandra joined CO2balance in March 2021 as the Assistant Project Development Coordinator joining the Uganda office. Working on the Safe Water Carbon Projects as part of the Ugandan team, she is assisting in overseeing project activities and working closely with project officers to ensure timely deliverables.
Prior to this, Sandra worked with the Uganda Carbon Bureau for 5 years handling forestry and cook stove carbon projects and the Company’s Going Neutral/carbon offsetting outfit.
In her role Sandra is working to expand her knowledge in climate change mitigation and impact the lives of rural communities.
Menelisi Falayi
Menelisi joined CO2balance in April 2023, and is focusing on Nature-based Solutions projects.
Prior to this, he worked as a Junior Consultant in South Africa, where he was involved in leading and co-leading the design of programmes/projects funded by multilateral funds such as the GCF, GEF, and the Adaptation Fund. He also served as an Environmental Governance Hub Leader in a Sustainable Land Management Project funded by the UNDP-GEF5 in South Africa.
Menelisi holds a PhD in Environmental Science and an MSc in Environmental Science from Rhodes University, along with a BSc Honors degree in Geography and Environmental Studies from Midlands State University.