WeeFin
Structuring sustainable investment on a large scale. Weefin offers a technological platform to integrate ESG criteria reliably, without greenwashing, and support financial institutions in building responsible strategies. Asterion led the Seed round in 2022, participated in Series A and B, the last of which in April 2025 alongside BlackFin, IRIS and Ring Capital.
"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"ESG is outdated; it's no longer enough to know whether a fund or company is truly impactful.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!"
