Faces & Stories
Many years of experience, profound expertise: With our knowledge, passion and network we support you with your circular business model - as partners every step of the way.

Dr. Matthias Ballweg
Co-Founder and Director
Still learning - most excited as co-founder of CIRCULAR REPUBLIC building our different impact vehicles and driving our projects together with our partners. Co-Led the circular economy platform at the world's most reputed sustainability impact firm Systemiq and come with extensive experience in senior executives roles in the automotive industry and in consulting. Passionate about mountain sports and voluntarily serving as chairman of the largest mountain club of the world with >180.000 members.

Sabine Feller
Senior Marketing & Brand Manager
With many years of experience in marketing strategies and brand management at The Walt Disney Company and Messe München, I have refined my skills. As a former marketer for IFAT, the world's leading trade fair for environmental technologies, I gained valueable insights to circular economy knowledge. At CIRCULAR REPUBLIC, I am responsible for all brand, marketing, and communication activities. Collaborating with a team that shares the same vision of an economy that respects our planet highly motivates me.

Polina Ivanova
Working Student
I did my Bachelor’s in Bioeconomy at TU Munich and am currently doing my Master’s in Management & Technology. During my studies, I’ve learned a lot about economic system change and developed my passion for the circular economy as a way to transform how we create value as a society. I’ve worked on several innovation projects around sustainability before and with this entrepreneurial mindset I developed, I am excited to support the CIRCULAR REPUBLIC team to make the circular economy our reality!
Michael Jung
Working Student
Fuelled by my passion for mountain sports and the Alps, I am highly passionate about sustainability. During a semester at Grenoble Ecole de Management and my bachelor thesis, I understood the massive potential that the concept of circular economy bears. Besides being a student in Management and Technology at TU Munich, I am voluntarily serving as a member of the EUSALP Youth Council, working together with EU-level politicians, non-profit organizations, industry stakeholders and society to make the alpine space resilient for future challenges.

Dr. Susanne Kadner
Co-Founder and Head of Ecosystems
Excited to drive the development of new entrepreneurial and circular ecosystems as Co-Founder of CIRCULAR REPUBLIC.
Gained extensive sustainability expertise in leading positions at acatech – National Academy of Science and Engineering and the United Nation’s Intergovernmental Panel on Climate Change.
Founded the multi-stakeholder Circular Economy Initiative Deutschland, the first of its kind to develop a roadmap for the transition towards a resource-efficient and digitally enabled Circular Economy.

Tim Langendörfer
Operations Manager
I encountered the concept of circular economy (CE) during my master’s studies at TU Munich, where I studied business administration. I was fascinated by the idea to keep resources in different cycles trying to decouple economic growth from resource use. So, I joined the sustainability consultancy SYSTEMIQ and worked on various CE issues. At CIRCULAR REPUBLIC, I now work as an operations and project manager, developing circular solutions for the future battery value chain together with our partners.

Niclas-Alexander Mauss
Co-Founder and Head of Operations
Over years helped shape the substantial growth and fundamental transformation of measurement technology manufacturer Lorenz Meters to a multi-award-winning circular economy pioneer. Thereupon, during a doctorate at TUM initiated CirculaTUM as now largest CE research hub in Germany and parallelly led a new incubator at UnternehmerTUM, now counting +50 startups among its alumni. As co-founder of CIRCULAR REPUBLIC driven to contribute to large-scale industrial transformation by leveraging the full entrepreneurial impact of UnternehmerTUM's unique ecosystem.
Leonhard Teichert
Program Manager
Through my work at the sustainability consultancy SYSTEMIQ, I discovered the concept of circular economy. There I contributed to the development of an e-learning platform that addresses this central concept. Previously, I have been leading a team at Cognostics a start-up that strives to strengthen human thinking in amidst complexity using AI technologies. In particular, I have been involved with designing models of economic system and relations. Complementary, I have been publishing in the field of Relational Economics.

Carl Warkentin
Founder Circular Textile Platform
Nearly a decade ago I founded my first venture with one of the first sustainable footwear companies. Sustainable designs developed towards recyclable products and new ventures in the recycling industry followed. Once I realized that circularity cannot be achieved by one stakeholder in the value chain, I started developing a multi-stakeholder approach turning linear industries towards circularity. CIRCULAR REPUBLIC and UnternehmerTUM are the ideal ecosystem to build such multi-stakeholder platforms.
Marie Wehinger
Project Manager Circular Textile Platform
At CIRCULAR REPUBLIC, I support the development and execution of our Circular Textile projects. Complementing these activities, I am a PhD student at the TU Munich, where I research the role of interorganizational alliances for a circular transition. Prior to joining CIRCULAR REPUBLIC, I worked as a Senior Associate at Systemiq, a think and do tank aiming to unlock system change; and co-founded a clothing rental start-up to tackle the fast fashion problem. In my free time you will find most likely find me surfing the atlantic coast or hiking in the bavarian mountains.
Join our team at CIRCULAR REPUBLIC
Currently, we are looking for a Team- & Event Coordinator (m/w/d).
Find the details about this opportunity on UnternehmerTUM's website.
Join us and let's make a difference together! 💚