Our Mission
To Accelerate SDG-aligned transitions by enabling collaborations across sectors.
We work together
Facilitating cross-sector networking among members and partners.
No single sector can solve global challenges alone. By bringing together people from government, business, finance, academia, and civil society, we create the space for collective progress.
We listen to every voice
Providing structured learning through webinars, briefings, and roundtables.
Diverse perspectives lead to better solutions. We make room for all who are willing and able to contribute—balancing environmental, social, and economic needs through a systems lens.
We turn ideas into action
Managing focused projects that address key challenges of transition progress
Practical, forward-thinking approaches are what move the needle. Our methods respect real-world constraints and help members turn ambition into impact. We do all this by publishing evidence-based insights and thought leadership.
The story so far
Greenings is an independent, not-for-profit network connecting executives and experts from across business, government, academia, civil society and finance to identify and overcome system-level barriers to progress.
Founded in 2009 as a student initiative at the University of Basel and ETH Zurich, Greenings was created by a group of undergraduates—among them our current Chair, Dennis West—who believed that real change requires collaboration across boundaries. Their early focus on climate change, biodiversity loss, and social inequality set the tone for a long-term mission rooted in purpose and ambition.
Over the past 15 years, Greenings has grown into a respected network known for driving cross-sector collaboration, influencing policy, and shaping practical solutions to global challenges. Our work has received support from leading institutions and has helped to build a more connected, coordinated approach to sustainability.
In 2025, Greenings entered a new chapter. With a newly established Board and Steering Groups, we’re expanding our reach and sharpening our focus on systems-level impact. What began as youthful idealism has become a powerful and pragmatic force for real-world progress.
Our vision
We aim to transform how sectors work together to tackle complex sustainability challenges—leaving a legacy of proven frameworks, lasting partnerships, and real-world impact through collaboration.
Greenings is powered by a small, dedicated team and guided by a global network of experts and leaders. Meet the people behind the mission.
Dennis West
Dennis co-founded Greenings in 2009 and now serves as Chair of the Board and Research Director of the Valuing Impact Programme. His work spans policy, law, entrepreneurship, and systems innovation, with a strong focus on the role of governance in sustainability transitions.
His PhD at the University of Oxford explores the systems dynamics of standardisation and its influence on transition planning. Dennis is affiliated with the Saïd Business School’s Skoll Centre for Social Entrepreneurship and the Centre for Socio-Legal Studies. He regularly works across academia and industry and is frequently invited to speak and moderate on topics related to sustainable governance and finance.
Dennis holds an MSc in Accounting and Organisations from the LSE, an MPhil in Socio-Legal Research from Oxford, and a BA/MA in law, economics, and business from the EUCOR European Campus (Basel, Strasbourg, and Freiburg).
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Dimitrij Euler
Dimitrij is an expert in sustainable finance and impact accounting, with a focus on improving transparency, protecting natural resources, and enhancing social and environmental outcomes. He has extensive experience in quantifying impacts and developing frameworks to measure both the positive and negative effects of assets.
A founding Board Member of Greenings, Dimitrij also co-leads the Transition Valuation Project. His earlier research focused on transparency in investment law, and he has contributed to a range of academic and applied projects—both independently and in collaboration with larger teams. He has worked with leading law firms and universities.
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Kathrin Wartmann
Kathrin is Greenings’ Director of Operations.
In her role, Kathrin drives operational excellence and ensures Greenings maximises value for its growing membership and partnership network. She is crucial to the successful delivery of Greenings' strategic initiative, the Transition Valuation Project.
Kathrin previously served as Associate Director, Climate Research at Sustainable Fitch, where she advised on and led research into corporate climate transitions. Before that, she was a Senior Associate for Climate Change and ESG at ERM Group. Kathrin also brings leadership experience from non-profit organisations in Switzerland and England as both a board member and project manager. A Swiss-British citizen, she holds an MSc in Security Studies from University College London, a BA in Political Science from the University of Zurich, and a CFA UK Certificate in Climate and Investing. She speaks English, German, and French, and lives in London.
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Kristin Kostka
Kristin is Greenings’ Director of Fundraising.
She is a clinical epidemiologist and health data scientist with more than 15 years of experience across industry, academia, and government. IShe has led global real-world evidence programmes, directed the OHDSI Center at Northeastern University, and published in Nature Communications and The Lancet family. Her work focuses on turning complex, heterogeneous health data into evidence that is trusted, reproducible, and usable. Kristin’s doctoral research studied long COVID, translating the WHO Delphi consensus into computable phenotypes and studying population-level symptom burden in European primary care data. In practice, this meant preserving clinical opinion while making clinical reality programmable. She investigated novel ways to evaluate phenotypes using open source methods for chart abstractions reviewed by clinicians and LLMs.
Kristin is also a stroke survivor and adaptive athlete. This lived experience shapes how she approaches software as a medical device (SaMD) and clinical AI. She cares about uncertainty, bias, and workflow not as abstractions, but as constraints that determine whether systems actually help patients. Lately, her passion has led her into impact and transition measurement. Health is the downstream expression of every policy, investment, and environmental decision. Through leading One Health Outcomes work with Greenings, Kristin is focused on building rigorous, bias-aware methods that make health outcomes decision-relevant in sustainable finance and enterprise risk. Across her portfolio, Kristin is creating the next generation of clinical AI and evidence infrastructure. Regulator-ready. Grounded in real patient experience. Designed to work when it matters.
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Luzius Zumstein
Luzius is a Swiss attorney at the commercial law firm VISCHER AG, where he is co-head of the Startup Desk. He advises startups, growth companies, and their investors on corporate and commercial law from incorporation to exit.
He specialises in the life sciences, cleantech and deeptech sectors. Luzius holds a degree in Law and Economics from the University of St. Gallen and a postgraduate in business and finance from the London School of Business & Finance.
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Jimmy Jia
Jimmy Jia is a strategist, entrepreneur, and technologist working at the intersection of energy, environment, and finance. He advises the boards of publicly listed companies on their net zero strategies, serves as ESG Venture Partner at Pi Labs (a PropTech VC firm), and sits on several US-based boards, where he chairs finance and strategy committees and supports CEO recruitment.
He is a Research Associate at Oxford Net Zero and a member of the Oxford Smith School of Enterprise and the Environment. His research focuses on carbon accounting practices and the development of a ‘general-purpose green ledger’—a system based on IFRS principles that synchronises emissions data over time to improve its decision-usefulness for financial stakeholders.
Jimmy is the author of two books on corporate energy strategy, has written for Harvard Business Review Online, and is a frequent speaker on the future of the energy grid. He holds BS and MS degrees from MIT, and an MBA and PhD from the University of Oxford.
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Become a member: accelerate sustainability with Greenings.
Join a dynamic network of individuals dedicated to driving real impact across sectors for a sustainable future. Membership is open to leaders who share our vision for positive change, commit to collaboration, and uphold our core values of empathy, awareness, and courage.
Annual membership is just CHF20—with an optional donation.