Ollie Batelier-Belton - Managing Director and NZIF registered member
Ollie provides expert consulting advice and is one of the leading ETS experts in the country. A pioneer in New Zealand’s emissions trading industry with over 15 years of experience, Ollie is a member of the Government’s ETS Technical Advisory Group. Ollie holds a Bachelor of Laws (LLB) and a Bachelor of Arts (BA).
Mathilde Batelier-Belton - Director and General Manager, NZIF registered member
Mathilde oversees the company's operations and staff. She became a Director alongside Ollie in 2022. She is passionate about anything related to the climate and graduated with two Masters focusing on economics and the environment. During her career in the UK, she has specialised in carbon markets and climate change policy in the public and private sectors.
Suzanne Rex - Finance and Office Manager
Suzanne manages the company’s finances and the office’s operations. She focuses on strengthening the team through system and client management, project coordination, and process streamlining. Originally from Scotland, she studied for a BSc in Ecology. She’s deeply interested in climate change and has extensive experience in administrative and financial work.
Cameron Johnson - ETS Consultant
Cameron’s role evolved from solely fieldwork to more comprehensive ETS Operations, specialising in carbon modelling, land use assessments and resolving compliance issues. Cameron has a BSc and MSc in Ecology and Biodiversity. He is passionate about bringing New Zealand to a carbon-neutral point through large-scale restoration and conservation of flora and fauna.
Timo Milne - ETS Analyst
Timo has been involved in seasonal fieldwork with CFS since 2021, measuring forests for carbon. In 2025, he joined the team full-time as an ETS Analyst. Growing up on a sheep and beef unit in rural Tasman, Timo is passionate about supporting landowners in sustainable and economic land management. With a BSc from the University of Otago and experience in local government work, Timo brings a well-rounded perspective and expertise to the ETS Operations team.
Adrienne Marsh - ETS Consultant - Team Lead - NZIF registered member
Adrienne leads the team for all ETS Operations. She oversees forest assessments, registrations, and mapping, manages ETS applications, and annually leads emissions returns. A creative at heart, Adrienne used to be a designer in sustainable fashion and has studied how to incorporate sustainable practices at every level.
Hamish Foxwell - Field Team Lead
Hamish focuses on managing and undertaking fieldwork across the country and ensuring that our FMA programme runs smoothly and on time. Hamish graduated with a Master's in Conservation Biology and a BSc in Environmental Science. His background is in fieldwork and designing biodiversity monitoring for Victoria University. He’s passionate about contributing to restoration projects.
Sinead McAllery - Senior ETS Consultant
Sinead focuses on resolving our clients' most complex ETS and carbon forestry issues. Sinead brings a rich and diverse risk management and analytics background, having spent the last five years working in the public sector. She contributed her broad expertise to the EPA's ETS Operations team, overseeing regulatory compliance and emissions reporting for the ETS. Sinead holds a Bachelor of Laws (LLB) and a Master’s in Peace and Conflict Studies. She is keen to use her passion for data to help analyse environmental policy and market mechanisms in the carbon forestry space.