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Stellar Impact

An evergreen private fund supporting smart solutions for sustainable impact

We provide growth capital to promising young companies across Europe with ambitious solutions to most pressing environmental issues
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We believe that it’s not too late to change the model

We seek to address the root causes of climate change by investing in European scale-ups with high positive impact on the environment. We believe in the power of disruptive models of consumption and production able to create new ecosystems that are both competitive and sustainable. We are an evergreen structure that is seeking to build long-term partnerships with visionary entrepreneurs who are committed to growing their businesses in a sustainable way.


projects we love and invest in

Open Cerafiltec


Cerafiltec is committed to protect our most previous natural resource: water
Germany Water pollution
Open nextProtein


nextProtein is reducing food waste and decreasing overfishing with the development of its sustainable insect protein production
France Alternative proteins
Open Inopsys


Inopsys develops water treatment solutions to complex and toxic residues on industrial sites
Belgium Water pollution
Open Gaiago


Gaiago is accelerating the transition to sustainable farming practices using soil regenerative solutions
France Sustainable Agriculture
Open Circularity Capital

Circularity Capital

Accelerating the growth of circular economy in Europe
Scotland Circular Economy
Open Noray Seafood

Noray Seafood

Noray is decreasing the shrimp industry's environmental footprint with its disruptive eco-friendly shrimp production model
Spain Sustainable food
Open Sencrop


Sencrop is reducing the large environmental and CO2 footprint of agriculture with its leading smart agriculture solution
France Sustainable agriculture


ECBF is a leading impact fund focused on the bio- and circular economy
Germany Bio and circular economy
Open Kern Tec

Kern Tec

Kern Tec is turning waste fruit seeds into food and pioneering B2B ingredients
Austria Sustainable food
Open Ademeure


Ademeure is at the forefront of innovation in biosourced offsite construction
France Circular Economy


Stellar Impact is managed by a dedicated team within Telos Impact, an independent impact advisor for private individuals and families seeking to grow their philanthropic and impact investment ambitions. From its offices in Brussels and Paris, Telos Impact provides advisory, structuring, and management services to private investors and philanthropists.

Marc Flammang

Founder & Managing Director

Marc is Managing Director of Telos Impact. Before founding Telos, Marc created and managed the Philanthropy and Impact Investing department at Bank Degroof Petercam. He has over 20 years of experience in the impact area. He is a graduate from ICHEC, College of Europe, and Solvay Business School. Marc founded Telos Impact in 2015.


Loïc de Schaetzen

Investment Director

Loïc joined Telos in 2022, bringing 20 years of experience in 3P Investments, energy transition and waste management acquired within a leading European Family Office, Engie and Suez environment. Loïc holds a Master in Economics and Management from UCLouvain and a Master of International Affairs from KU Leuven.


Flavie Gayet

Investment Manager

Before joining Telos Impact in 2018, Flavie worked in development finance – Private equity transactions at the Dutch Development Bank (FMO) in The Hague for 8 years. She is a graduate from ESCP Business School and holds a Masters’ degree in Art History from the University of Paris 1 Panthéon-Sorbonne.


Caroline Philippe

Investment Manager

Caroline joined Telos Impact in 2019. Prior to that, she spent 8 years in the Private Equity department of Rothschild & Co in Paris. She is a graduate from ESCP Business School.


Guillaume Boury

Investment Manager

Guillaume joined Telos Impact in 2019. He began his career in the M&A team at KPMG where he spent 4 years. He holds a master’s degree in Business & Engineering from the Louvain School of Management (UCL).


Jean Hastings

Investment Associate

Jean joined Telos Impact in January 2023. Prior to that, he spent 3 years at the Boston Consulting Group in Paris. He is a graduate of HEC Paris and holds a master’s degree in business law from the University of La Sorbonne.


Melchior Mesnard

Investment Associate

Melchior joined Telos Impact in March 2023. He had previously worked at two impact funds, MAIF Impact and Kimpa. Melchior holds a master’s degree from the SKEMA Business School.


Gilles Solé

Investment Associate

Gilles joined Telos in December 2023. He is also a Teaching Assistant in Finance at Solvay Brussels School of Economics and Management, and previously worked at Ernst & Young (EY). Gilles has passed all three levels of the CFA Program and holds a master’s degree from Solvay Brussels School of Economics and Management.



Uli Grabenwarter

Deputy Director at European Investment Fund overseeing Europe’s largest Fund-of-Fund investment programmes in Venture Capital, Technology Transfer and Impact Investing. He is a visiting Professor at IESE University, author of numerous publications, and has conducted extended research on family offices’ activity in SRI and Impact Investing.


Claude Jottrand

Graduate from Solvay Business School, Claude has an extensive Belgian and foreign M&A expertise gained through his experience of nearly 20 years at Banque Degroof, starting as a Financial Analyst and in latter years, as a Director of the Investment Banking Department. He is the Chairman of the Board of Verlinvest Group S.A. and serves as Non Executive Director in several boards. 


Benjamin Firmenich

Benjamin in an environmental scientist with 10+ years experience in impact investing. He is head of Impact and member of the investment Committee of Impact Finance, which disbursed $290M in impact value chains. He also serves as adviser of the ESG Board of Groupe Richemont and jury member of the IMD-Pictet Sustainability in Family Business Award.