About SustFin

SustFin B.V. is a company that provides independent advice on finance and sustainability. Its predecessor Sustainability in Finance was founded in 2001. From policy development to implementation, stakeholder management, training, communications, sparring partner and board positions, SustFin focuses on helping financial organisations embrace and embed sustainability in finance.


The company’s sole owner and advisor is Marcel Jeucken. Marcel Jeucken has more than 25 years of experience in finance and sustainability, from executive firm-wide management to hands-on implementation, research, sales, marketing, strategy, and communications. He guides and has assisted many organisations on their sustainability journey as employee, advisor or in supervisory roles, including at Rabobank, Triodos Bank, World Bank, Sustainalytics, PGGM Investment Management, ABP, Anthos Fund and Asset Management, PNO Media, VGZ, Bouwinvest, SPMS, Principles for Responsible Investment, Federation of the Dutch Pension Funds, MSCI, TKP Investments, ABN AMRO bank and Federated Hermes Investment Management. Marcel holds or has held advisory, executive or supervisory roles at investor organisations like PRI (Principles for Responsible Investment), Eumedion, IIGCC (Institutional Investors Group on Climate Change) and ICGN (International Corporate Governance Network).


Marcel Jeucken is an analytical, strategic, and problem-solving thinker, is pragmatic and performance-oriented, and brings deep experience, a broad global network and management experience to any project or interim assignment.





What can I do for you?

SustFin brings broad management, project management and executive experience to any organization in need of an interim position or project management at the intersection of sustainability and finance. These services can be highly focused or broad in scope, depending on your needs.


Dedicated and adaptive, SustFin works closely with its clients to deliver results that help them now and in the future. SustFin brings a broad understanding of relevant challenges and solutions across the financial sector and the entire investment chain with respect to integrating sustainability into finance and investments. SustFin helps clients define ambitions, strategy and policies, and plans to implement them.


SustFin also assists organizations in product development, in training directors, client representatives and portfolio managers, and in communications and stakeholder management. SustFin also acts as a sparring partner and advisor on internally developed responsible investment policy and implementation initiatives, and facilitates board discussions on responsible investment and investment beliefs.


SustFin builds on extensive expertise and experience in fiduciary advice and asset management, across all asset classes and investment styles, and across banking. It also builds on extensive expertise and experience in sustainability issues, including human rights, climate change, corporate governance, long-term investing, and across all responsible investment strategies and instruments.




Dr. Marcel Jeucken is the author of many books on sustainability and finance. The financial sector plays a fundamental role in any society and can be a driving force for the sustainable development of the world. The 1998 (Dutch) and 2001 (English) book posited that as follows: "Traditionally, however, those who work in the financial sector are largely unaware of the rationale and pressures for sustainable development and their impact on their work, while those in the relevant research and policy fields usually overlook how essential the financial sector is to progress." Later books and papers have moved from general aware-raising to specific actions and new developments. Please see In the Media for a selected overview.