Who's Who on Social Media
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Who is Lou Welgryn?

Lou Welgryn brings data to life with purpose. As Secretary General of Data for Good and co-founder of Eclaircies, she’s part data scientist, part activist, and fully committed to turning algorithms into tools for positive impact.

November 3, 2025
Elena Freeman
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Elena Freeman

Elena Freeman designs partnerships and events at Favikon. She cares about building spaces where creators, brands, and ideas meet in ways that feel real and memorable. From partner programs to community gatherings, she focuses on making connections that spark collaboration and professional growth.

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Lou Welgryn: Using data to drive change for people and the planet

Lou Welgryn brings data to life with purpose. As Secretary General of Data for Good and co-founder of Eclaircies, she’s part data scientist, part activist, and fully committed to turning algorithms into tools for positive impact. Her content blends clarity, conviction, and technical insight, making her one of the most influential voices in France’s social tech and environmental spheres.

1. Who she is

Lou Welgryn is the Secretary General of Data for Good, a nonprofit organization that connects data experts with projects advancing public interest. She co-founded Eclaircies and ESSEC Transition Alumni, two initiatives focused on climate action and sustainable business transformation. With a background in data science and ethics, Lou has spent years exploring how technology can be repurposed to address global challenges like climate change and digital responsibility. Her career reflects a balance between academic excellence and civic engagement, bridging the gap between tech and activism. Today, she stands as a reference for how data can be used as a force for transparency and collective progress.

2. A network of heavyweights

Lou Welgryn's sphere of influence

Lou’s network is a vibrant ecosystem of change-makers, from environmental collectives like On Est Prêt and Canopée to media platforms such as Brut and Le Monde. She also interacts with policy thinkers, nonprofit leaders, and organizations like the Institut du Climat and France Inter. This mix of scientific institutions and social voices mirrors her multidisciplinary impact. By connecting with leaders from climate, tech, and media spaces, Lou amplifies conversations that bridge activism and evidence-based policy.

3. Why people listen

Lou Welgryn's popular posts across social media

People engage with Lou because she makes complex ideas accessible and relevant. Her tone is informed yet approachable, filled with grounded examples that connect technology to everyday life. Whether she’s breaking down AI ethics or challenging tech monopolies, she speaks with clarity and conviction. Followers trust her not just as an expert, but as someone who stands firmly behind her values. Her posts often spark thoughtful debates that bring together scientists, journalists, and citizens.

4. Authenticity that resonates

Lou Welgryn's Authenticity Score Details

Lou holds a perfect Authenticity Score of 100 on Favikon, built on a foundation of trust and expertise. Her posts reflect genuine engagement, with followers who discuss, challenge, and expand on her ideas. Instead of performance-driven content, she shares personal perspectives on data ethics, AI governance, and environmental accountability. The result is a space where conversation thrives naturally. Her credibility is earned through transparency, humility, and her ability to connect emotion with data-driven insight.

5. Numbers that back it up

Lou Welgryn's social media rankings

Lou’s audience has grown organically from 24,168 to 41,828 followers over the last three years, showing steady engagement and consistent interest. She has an Influence Score of 7,632 points, ranking in the top 1% of French LinkedIn creators and top 3 globally in Data Science. Her engagement quality scores an impressive 92, fueled by meaningful discussions and thoughtful responses. With post content rated “Outstanding” and AI interaction rated “Authentic,” her growth is clearly driven by trust and impact.

6. Collaborations that matter

Lou collaborates with leading French media and environmental networks, including France Inter, Eclaircies, and Data for Good. Her interviews and public appearances focus on climate tech, data transparency, and responsible AI. She frequently partners with environmental collectives to promote awareness on climate misinformation and sustainable digital transformation. Through her involvement in these organizations, Lou helps shape the public discourse on how technology can truly serve the common good.

7. Why brands should partner with Lou Welgryn

Brands and institutions working toward sustainability, transparency, or tech ethics can find a credible and inspiring partner in Lou. She brings both analytical depth and social resonance to any collaboration.

  • Thought leadership campaigns around ethical AI and digital responsibility
  • Educational workshops or webinars on climate data and impact measurement
  • Media collaborations promoting tech for good initiatives
  • Advisory roles or co-created research projects linking innovation with sustainability

8. What causes she defends

Lou is a committed advocate for Climate Change (95%), Tech for Good (70%), and Education for Everyone (40%). Her activism goes beyond awareness—she actively contributes to projects that map carbon emissions, combat misinformation, and democratize access to sustainable knowledge. On social media, she amplifies climate initiatives, supports open-source data platforms, and challenges the misuse of technology that undermines social equity. Her message is clear: data and ethics must serve humanity, not the other way around.

9. Why Lou Welgryn is relevant in 2026

As AI and data regulation take center stage in Europe, voices like Lou’s are becoming indispensable. Her expertise in ethical data use aligns perfectly with the growing demand for responsible innovation. In a world increasingly shaped by climate urgency and digital acceleration, Lou stands out as a guide for how technology can evolve with conscience. Her cross-sector approach ensures she remains at the forefront of conversations that define the future of sustainable progress.

Conclusion: A Voice for ethical innovation

Lou Welgryn is shaping a vision of technology that respects both people and the planet. Her leadership combines technical mastery with moral clarity, making her one of the most trusted figures in France’s data ethics community. Through every post, panel, and project, she invites others to rethink how innovation can serve the public good. Her influence is a reminder that data, when guided by purpose, can truly change the world.

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