Our Team

World Class Leadership passionate about change

Marion Verles

CEO

Marion Verles is CEO of Bridge Carbon. She brings two decades of experience across the carbon market’s value chain, as a project developer, a standard-setter and a verifier.

Before joining Bridge Carbon, Marion co-founded and led SustainCERT, a climate-impact verification body, where she built what is recognised as the industry’s first comprehensive digital MRV platform. SustainCERT was acquired by TÜV SÜD in 2026. Previously, as CEO of the Gold Standard Foundation, she led the creation of Gold Standard for the Global Goals, the first standard to bring climate action and the UN Sustainable Development Goals together in one framework. Earlier, as Executive Director of Nexus for Development, she built and financed carbon projects in frontier markets.

Marion’s work in carbon markets began in 2005 in Cambodia, where she worked alongside the French NGO GERES on a clean cooking project, the field in which Bridge Carbon’s work is rooted. She is driven by the conviction that well-designed markets can solve real environmental and social problems, as long as quality grows with them. She is based in Zurich, Switzerland.

Donee Alexander

Chief Carbon Officer

Donee is a recognized leader and authority in household air pollution, clean cooking, and carbon markets, with deep expertise in advancing solutions that deliver both emissions reductions and development benefits.

Before joining Bridge Carbon, Donee served as Chief Science Officer of the Clean Cooking Alliance and was a founding member of the Clean Cooking and Climate Consortium (4C), helping to advance the integration of clean cooking solutions within global climate and development agendas.

Before coming to Bridge Carbon, Donee played a key role in the development of the draft CLEAR carbon methodology, helping to advance approaches for more accurate and robust quantification of emissions reductions from clean cooking carbon projects.

Donee holds a Ph.D. in Environmental Engineering from the University of Washington and completed postdoctoral research at the University of Chicago.

Jolie Norris

Chief Legal Officer

Prior to joining Bridge Carbon as Chief Legal Counsel, Jolie spent more than 20 years at Goldman Sachs, including 10 years as a Managing Director and Head of the Global Commodities legal team.

Jolie has covered a wide variety of legal matters relating to global commodity markets, including financial derivatives; sustainability; compliance and regulatory matters; energy and commodity finance; and commodity offtake transactions.

At Bridge Carbon, Jolie is responsible for the firm’s legal, compliance, corporate governance, and ESG functions. She brings a commanding blend of expertise in managing legal and regulatory matters, shaping how the firm navigates regulatory complexity across global carbon markets.

Audrey Davin

Global Chief Operations Officer

Audrey brings over 25 years of experience leading large teams and projects focused on supply chain, operations and innovation.

Audrey has extensive expertise, predominantly from her tenure with consumer goods companies, including Unilever, Carlsberg and Danone.

Most recently, Audrey managed Unilever’s supply chain and operations across Asia.

Her career has been marked by transformative leadership in regional and global capacities, focusing on operations strategy, corporate development, business transformation, manufacturing deployment, and organisational enhancement.

John Sadler

Chief Financial Officer

Prior to joining Bridge Carbon as Group Chief Accountant, John spent two decades with TotalEnergies, in what became the Gas, Power and Renewables Division, overseeing the teams tasked with the accounting, control and reporting of the company’s energy trading portfolio under full marked-to-market.

This entailed leading the continuous development of trading and accounting systems, analytics, methodologies, and controls, increasing automation and driving the efficiencies and productivity needed to safeguard execution and growth of financial operations within a fast-changing and highly regulated Trading business.

Minh Tran

Chief Commercial Officer

Minh is the Chief Commercial Officer for Bridge Carbon, responsible for developing business opportunities, managing commercial activities, and growing our market ecosystem.

He brings extensive experience navigating market uncertainties, managing risks and capturing commercial opportunities across energy markets with leading players such as Puma Energy, Schlumberger and Wood Mackenzie.

In his previous consultancy roles, Minh has worked with a diversified range of cross-sectorial clients to help them extract growth and create business value as they undertake their energy transition journey.

Margot Clarvis

Head of Africa and Global NBS

Margot has more than 17 years’ experience working in program development and management on climate change and ecosystem-based adaptation across the UN, public and private sectors. She has worked with clients in the UN, insurance sector, and carbon market to develop NbS programs and projects in the Middle East and South-East Asia.

Earlier, she was Director of Programs at Earth Security, leading public-private partnership solutions on climate- and NbS investment in the Horn of Africa, India, Indonesia and the Philippines. She has a PhD in Environmental Policy from the University of Geneva and an MSc in Environmental Technology from Imperial College London.

Peris Ruru

Regional Director, East Africa

Peris Ruru is a program leader with over a decade of experience delivering and scaling climate and development initiatives across Africa. Based in Kenya, she currently serves as Regional Director where she leads the Cookstove Champion program on the ground and provides strategic and operational oversight for clean cooking and carbon initiatives across multiple countries.

Peris brings deep expertise in program execution, operational excellence, and stakeholder engagement, with a strong focus on building high-performing teams and strengthening systems that support scale and impact. She has successfully led large-scale initiatives reaching 0.5M households, while ensuring strong compliance with carbon standards and organizational policies.

Earlier in her career, she held leadership and technical roles supporting clean energy and water access programs in Kenya, contributing to logistics, monitoring systems, and carbon compliance processes. Her experience includes supporting initiatives that expand access to safe drinking water in thousands of schools through government and partner-led approaches.

Geoffrey Grimm

Chief Information Officer

Geoff leads the IT department for Bridge Carbon managing the IT strategy and implementation across enterprise applications, operations and security, and data and analytics.

With over a decade in data analytics, applications, and infrastructure, Geoff has experience as a data scientist, engineer, and manager of cross-functional technology teams in both research and mission-critical industries.

Prior to joining Bridge Carbon, he led a team on the US Department of Defense’s ADVANA platform, a real-time analytics and tracking system for DoD leadership.

Audrey Davin

Chief Operating Officer

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Julian Parkin

Chief Transformation Officer

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John Sadler

Chief Financial Officer

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