Biography

Dr. Imke Rajamani is the Managing Director for Finance & Event at the Hamburg Sustainability Conference (HSC). Her responsibilities focus on strategic business development and partnerships, ensuring organizational excellence and implementing innovative and sustainable event design. Before joining the HSC in July 2023 Imke Rajamani served the Falling Walls Foundation as Director for Science Entrepreneurship and Managing Director. Imke Rajamani is a historian by training and an alumna of the Max-Planck-Institute for Human Development, Freie Universität Berlin and the University of Hamburg. Her PhD thesis on anger, media and democracy in postcolonial India was awarded the prestigious Otto Hahn Medal in 2016. She holds certifications as systemic coach and mediator.

Biography

Henry Alt-Haaker is Co-Managing Director of the Hamburg Sustainability Conference, overseeing its program, impact, and political outreach. He was formerly Senior Vice President at the Robert Bosch Stiftung and has worked in government, diplomacy, and international NGOs. He studied literature and philosophy in Berlin, Paris, and St. Louis, and holds a Master’s in Public Policy from the Hertie School.

Biography

Clara Umstätter is the Project Manager for all HSC boards and committees. Hence, her main responsibility is to coordinate and prepare the Partner Meeting, Supervisory Board and HSC Council in addition to supporting the Managing Directors with executive affairs. She holds a Master of Science degree in "International Administration and Global Governance" from the University of Gothenburg and did an internship at the United Nations Development Programme (UNDP) before joining the HSC.

Biography

Yara Rieper works as an Executive Assistant at HSC, providing dedicated support to the managing directors, particularly in the areas of Finance and Operations. She holds a Master of Arts in Economics, Law, and Social Sciences from the University of Erfurt. With her interdisciplinary academic background and hands-on experience, she contributes to driving efficient business processes.

Biography

Alexa Ruppert ensures that everyone and everything is in the right place at the right time during the Hamburg Sustainability Conference, and supports the Executive Board in all operational tasks. Previously, she was part of the executive management of an international scientific conference as an authorized representative with core tasks in partner, data and event management as well as communications.

Biography

In case you require any support with your delegation's participation at the HSC, please reach out to Bennet.

Biography

Biography

Jamie Lipecky is a working student in Event Management at the Hamburg Sustainability Conference (HSC), supporting guest management and the planning of side events. She is currently studying International Business Management at the Hochschule für Wirtschaft und Recht in Berlin.

Biography

Sarah Maryanne Odera is the Director of Programs at the Hamburg Sustainability Conference (HSC), where she leads with passion and purpose. With a career that bridges Europe and Africa, she brings a wealth of experience in environmental strategy, project development, and stakeholder engagement. Her academic foundation in Global Political Economy equips her with a nuanced understanding of sustainability and policy, driving meaningful progress in the field.

Biography

Marie Schönfels is Project Manager for Partner & Program at the Hamburg Sustainability Conference (HSC). She holds a degree in Politics, Administration, and International Relations from Zeppelin University and is currently pursuing a Master's in Urban Geography at Humboldt University of Berlin. Prior to joining HSC, she gained experience in political and strategic communications as well as environmental policy through roles at a political consultancy and the Environmental Law Institute in Washington, D.C.

Biography

Dr. Carl-Martin Hißler is Project Manager Partner & Due Diligence at the Hamburg Sustainability Conference (HSC). He is responsible for the assessment of potential partner companies and partner foundations. In close cooperation with the United Nations Development Program (UNDP), he conducts comprehensive risk analyses to ensure that partnerships comply with ethical, social and environmental standards. Carl-Martin studied political science at the University of Potsdam and holds a PhD in the same field. Before joining HSC, he worked for a publishing house in Berlin, as a Franchise Consultant in Hamburg and as a Project Manager at Wegweiser Media & Conferences GmbH.

Biography

Fritz Finne is Project Manager for Program & Partners at the HSC, supporting session coordinators in shaping impactful formats under Forum 2: Unleashing Investments for the SDGs. He also assists the Managing Director with strategic political outreach and leads HSC’s Youth Engagement efforts. Before joining HSC, Fritz worked in both the public and private sectors, including at a gov-tech startup and within the Federal Government.

Biography

Julia Bogisch is Junior Project Manager for Program and Partners at the Hamburg Sustainability Conference (HSC). With a background in Cultural and Social Anthropology and International Relations, Julia brings an interdisciplinary perspective to sustainability. She has gained experience in both the private and public sectors across several countries, with a focus on the intersection of culture, innovation, and sustainability.

Biography

Marie Mühlmann is leading Hamburg’s sustainable transformation as Head of Hamburg Sustainability Week and Senior Project Manager Public Engagement at the Hamburg Sustainability Conference gGmbH. She coordinates the Hamburg Sustainability Week, taking place from June 1–6, 2025. The event brings together local stakeholders to develop innovative solutions for a more sustainable city. With her expertise in stakeholder engagement and event management, Marie fosters collaboration between civil society, businesses, public administration, academia, and the cultural sector to advance the UN Sustainable Development Goals at the local level.

Biography

Milena Düstersiek serves as a Student Assistant in the team responsible for the Hamburg Sustainability Week (HSW). In addition to her contributions at the HSW, she is currently pursuing her Master of Arts degree in International Politics and International Law at the Christian-Albrechts Universität in Kiel, Germany.

Biography

Dora Ana Martinelli has many years of experience in event and communications management and is part of the organization team of Hamburg Sustainability Week, which takes place from 1 to 6 June. In addition, Dora Ana Martinelli coordinates the public events of Hamburg Sustainability Week, which take place throughout the city and make sustainability topics accessible to a wide audience.

Biography

Lisa Wagner is the Director Brand and Communications at the Hamburg Sustainability Conference (HSC). She leads the development and implementation of the overarching communication strategy, including brand positioning, design, and campaign direction. With an academic foundation in linguistics and extensive experience across all facets of brand strategy, campaign development, and creative storytelling, she contributes a comprehensive, integrative perspective to the organization. Her entrepreneurial experience as the founder of a successful DTC e-commerce business is complemented by a broad communications background spanning the non-profit sector, political communication, fintech, software, science communication, and systemic consulting. Before joining the HSC, she built the communications department at the Falling Walls Foundation and led the digital transformation of the Falling Walls Science Summit.

Biography

Roman Rehor is the Communications Manager at the Hamburg Sustainability Conference (HSC), where he specializes in creating compelling moving image content that brings sustainability narratives to life. He studied philosophy and speech science in Berlin and Regensburg, developing a deep understanding of communication dynamics. Before joining HSC, Roman crafted video art for opera and shaped communications as an instructional designer. He is also a professional voice over speaker.

Biography

Nina Ludolphi is Social Media & Communications Specialist at the Hamburg Sustainability Conference (HSC). As a strategic communications expert specializing in public engagement on complex societal issues, she has led high-impact campaigns for federal agencies and NGOs, including Germany’s national road safety initiatives and the Office of the Independent Commissioner for Child Sexual Abuse Issues. At the Hamburg Sustainability Conference, Nina helps shape narrative strategy and ensures cohesive and compelling communication across all channels.

Biography

Olena Taran is the Press Officer of the Hamburg Sustainability Conference (HSC). She is responsible for the strategic alignment and coordination of the HSC press office as well as communication with the press.

Biography

Rebeca Soares is a Working Student supporting the Hamburg Sustainability Conference team with communications and press relations. With a background in Journalism and a passion for global sustainability and inclusive dialogue, she contributes to amplifying the conference’s mission of driving impactful solutions. Currently pursuing a Master's in Global Communication: Politics and Society, she brings international experience and a strong commitment to sustainable development.

Biography

Darwin Veser serves as Press Officer at the Hamburg Sustainability Conference (HSC). Prior to joining HSC, Darwin acted as Chief of Staff to Parliamentary State Secretary Niels Annen, MP. He holds a Bachelor's degree in History and Political Science from Freie Universität Berlin and a Master's degree in International Security from Sciences Po Paris.