Bertrand Altmayer

Asterion Ventures is an early-stage investment firm focused on systemic impact across Europe, with offices in Paris and Amsterdam and active venture partners in Brussels and Zurich. Impact-focused by design, Asterion backs founders tackling structural challenges across energy, industry, climate risk, health, and physical AI. In four years, Asterion has mobilized nearly €65M into 30 early-stage companies. Its current early-stage fund totals €50M, and Asterion is preparing a new €100M fund. Four portfolio companies are now scaling into Series A/B with top European funds, including Weefin, Spark Cleantech, Everdye, and one soon to be announced; one has already exited. Asterion’s edge lies in scale powered by people: a community of 900+ entrepreneurs and executives invest as business angels, representing roughly 50% of each round. They bring not only capital, but also operational experience, time, and hard-to-access networks. Beyond financing, Asterion has built dedicated programs for exited founders (Life After Exit), women investors (Invest Like a Woman), and entrepreneurial families (Immersion). Its LP base includes founders of French unicorns and European top impact companies such as Back Market, BlaBlaCar, and Too Good To Go, a few corporates and long-term family offices like Entheos, including prominent families from Northern France.

We are a VC built and backed by entrepreneurs. We invest in sustainable change. Our mission: To find, fund, and power European innovators who are shaping the future with solutions that meet humanity’s needs without compromising the planet. Driven by our experience, knowledge, and networks, we strategize, iterate, build, and win. Our results speak volumes. Over the past 10 years, we have helped power over 90 companies, completing 27 successful exits. We make swift, intuitive decisions, trusting your ideas and ability to drive market disruption with pioneering solutions for a sustainable future.

Climate Investment Club. The Climate Club is backed by 130+ entrepreneurs and climate experts. We invest 100k tickets into companies that will help slow down Climate Change. We will help you with what makes the difference: money, expertise and network.

We invest in emerging brands with a purpose. Since our creation in 2015, we have backed more than 30 companies that redefine our ways of living: how we eat, sleep, socialize, learn and feel. We invest between 2 and 10 million euros in companies based in France, Europe or the US with a proven business model. But we do not stop at funding. We support our portfolio companies and provide them with our operating tool box and network to help them thrive. We want to make a real difference by improving lives and encouraging change in everyone’s day-to-day. We are excited to be on this path to crafting a better world. Together with our portfolio founders, we aim to balance profit with purpose. We all are committed to creating a sustainable way of living and of doing business for individuals, the community and the planet. That is why we have been a mission-led company with B-Corp certification since 2019 and are willing to continue to improve whenever we can.

Nous offrons aux startups et scale-ups à impact lexpertise pour atteindre une croissance durable : conseil en stratégie, finance opérationnelle, levée de fonds et accompagnement individuel ("sparring partner").

Asterion Ventures is an early-stage investment firm focused on systemic impact across Europe, with offices in Paris and Amsterdam and active venture partners in Brussels and Zurich. Impact-focused by design, Asterion backs founders tackling structural challenges across energy, industry, climate risk, health, and physical AI. In four years, Asterion has mobilized nearly €65M into 30 early-stage companies. Its current early-stage fund totals €50M, and Asterion is preparing a new €100M fund. Four portfolio companies are now scaling into Series A/B with top European funds, including Weefin, Spark Cleantech, Everdye, and one soon to be announced; one has already exited. Asterion’s edge lies in scale powered by people: a community of 900+ entrepreneurs and executives invest as business angels, representing roughly 50% of each round. They bring not only capital, but also operational experience, time, and hard-to-access networks. Beyond financing, Asterion has built dedicated programs for exited founders (Life After Exit), women investors (Invest Like a Woman), and entrepreneurial families (Immersion). Its LP base includes founders of French unicorns and European top impact companies such as Back Market, BlaBlaCar, and Too Good To Go, a few corporates and long-term family offices like Entheos, including prominent families from Northern France.

We are a VC built and backed by entrepreneurs. We invest in sustainable change. Our mission: To find, fund, and power European innovators who are shaping the future with solutions that meet humanity’s needs without compromising the planet. Driven by our experience, knowledge, and networks, we strategize, iterate, build, and win. Our results speak volumes. Over the past 10 years, we have helped power over 90 companies, completing 27 successful exits. We make swift, intuitive decisions, trusting your ideas and ability to drive market disruption with pioneering solutions for a sustainable future.

Climate Investment Club. The Climate Club is backed by 130+ entrepreneurs and climate experts. We invest 100k tickets into companies that will help slow down Climate Change. We will help you with what makes the difference: money, expertise and network.