WeeFin Secures €25 Million to Boost Sustainability Compliance Efforts

Paris-based WeeFin, a rising star in the world of sustainable FinTech, has announced a €25 million funding round to scale its suite of innovative products and amplify its presence on the global stage—with the launch of a new office in London. Just 15 months after its Series A raise, this strategic move positions WeeFin to further solidify its role at the intersection of finance and sustainability.

Grégoire Hug, CEO and Co-founder of WeeFin, added, “With BlackFin Capital Partners as one of our investors, WeeFin has the support it needs to make a definitive impact in Europe. We have always been convinced that sustainability is an essential and differentiating strategic element for financial institutions. This Series B not only confirms this vision but also validates our client's trust and the relevance of our platform, which enables them to address their challenges at scale.”

The financing round was led by BlackFin Capital Partners, joined by existing investors IRIS, Asterion Ventures, and Ring Capital. Founded in 2018 by Grégoire Hug, a former R&D product manager at BNP Paribas, alongside Marion Aubert and Guillaume Klech, WeeFin provides a SaaS platform tailored to financial services firms. It centralises critical data for the design and management of ambitious sustainability strategies spanning ESG (Environmental, Social, Governance), impact, and climate initiatives.

WeeFin’s platform is already gaining traction, with over 40 clients across Europe, including heavyweight names like Generali Asset Management, Caisse des Dépôts Asset Management, Groupe BPCE, and Malakoff Humanis. These firms collectively manage €6900 billion in Assets under Management (AuM), demonstrating the platform’s significance in today’s financial landscape.

The company’s meteoric rise is underscored by its participation in Impact 120 by Mouvement Impact France, an exclusive group identifying the future unicorns in impact-driven business, and its spot on the 2024 ESG FinTech 100 ranking. These recognitions highlight the company’s growing influence in the sustainable finance space.

With the new investment, WeeFin aims to enhance its offerings by refining data management, launching cutting-edge modules—such as a dedicated ESG performance attribution solution—and incorporating new, diverse data sources. These advancements will enable better regulatory compliance and more robust support for clients, particularly in helping them make informed, sustainable investment decisions.

According to the company, sustainability has rapidly evolved into a key strategic pillar for financial institutions, with WeeFin positioning itself as a pivotal enabler of this shift. The results speak for themselves: in just two years, international revenue has surged from 0% to 30% of total revenue, while Annual Recurring Revenues (ARR) have increased fivefold.

WeeFin’s growth trajectory shows no signs of slowing down. The company is expanding across Europe, with new client acquisitions in Luxembourg and Italy. It is also setting its sights on the UK market by opening its London office. This push for international expansion is further supported by the company’s rapid scaling, having doubled its workforce over the last two years. WeeFin plans to bring on 100+ new employees over the next three years to support its growing operations and market demands.

Julien Creuzé, Partner at BlackFin, and Chloé Novène, Investment Manager et BlackFin, commented, “We have been following WeeFin since its inception and have been particularly impressed by the ability of its management team to execute its ambitious vision. In a very short space of time, WeeFin has won over some of the world’s leading asset managers and achieved some very exciting international successes, particularly in the UK.

“At BlackFin, we share the founders’ vision to establish WeeFin as the leading ESG data management platform for large financial institutions and asset managers. We are looking forward to working with the teams and supporting them in this new phase of growth.”