WeeFin
Making investment more transparent and sustainable. WeeFin offers a technological solution enabling investors to integrate and analyze ESG criteria reliably, without greenwashing. Thanks to their platform and expertise, they facilitate the construction of responsible investment strategies. Asterion led the seed funding in June 2022 with Investir&+, and participated in the Series A round in November 2023, which was led by Iris. In April 2025, Weefin raised €25 million in Series B funding, backed by BlackFin Capital Partners, IRIS, Ring Capital and Asterion Ventures, to accelerate its expansion in Europe and strengthen its sustainability solutions. This funding will enable Weefin to continue innovating and positioning itself as a leader in ESG data management for major financial institutions.
"A very strong and complementary team, and the perfect timing regarding regulations in a country that is ahead of the rest of the world = the opportunity to make finance greener @scale while creating a French-based international leader."
"A very strong and complementary team, and the perfect timing regarding regulations in a country that is ahead of the rest of the world = the opportunity to make finance greener @scale while creating a French-based international leader."
"ESG is outdated; it's no longer enough to know whether a fund or company is truly impactful. WeeFin is going to revolutionize this sector with more accurate and transparent ratings to prevent green washing practices. The entire finance sector is concerned!"
