Sarah Sellier

CEO Elkar | ex-Uber, ex-Amazon

📍 France🔄 Updated September 2026💼 3 investments📅 2 years investing🗓 Last invested Dec 2025
Operator-angel🌍 FranceInvested this year
3
Total investments
0
Early stage
1
Mid stage
1
Late stage
2y
Years active

Portfolio

3 investments · sorted by recency
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Investor
Dec 2025
Were an AI research company that builds reliable, interpretable, and steerable AI systems. Our first product is Claude, an AI assistant for tasks at any scale. Our research interests span multiple areas including natural language, human feedback, scaling laws, reinforcement learning, code generation, and interpretability.
Investor
Jun 2024
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. AI is an extremely powerful tool that must be created with safety and human needs at its core. OpenAI is dedicated to putting that alignment of interests first — ahead of profit. To achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. Our investment in diversity, equity, and inclusion is ongoing, executed through a wide range of initiatives, and championed and supported by leadership. At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.
Investor
Feb 2024
Campsider est la destination #1 des sportifs pour séquiper en seconde main. Achetez, vendez du matériel sélectionné et garanti, en toute confiance et avec des conseils de spécialistes ! Notre mission : rendre accessible laventure en pleine nature et protéger nos terrains de jeu avec à une économie plus circulaire.
Experience · 7 entries
All (7)
Investments (3)
Founder (3)
2025
Investor
Dec 2025
Were an AI research company that builds reliable, interpretable, and steerable AI systems. Our first product is Claude, an AI assistant for tasks at any scale. Our research interests span multiple areas including natural language, human feedback, scaling laws, reinforcement learning, code generation, and interpretability.
Co-founder
Jun 2025
Elkar is your AI Analyst inside Excel & Google Sheets. It integrates seamlessly with your spreadsheets to write formulas, build models, spot errors, and explain what matters instantly. Try it for free: https://elkar.co
2024
Co-Founder & CEO
Sep 2024
Where is your data? Who has access? How is it being used? At Breezy AI, we take the complexity out of data privacy and security. We automatically classify sensitive data, ensures regulatory compliance, and detects at-risk users—empowering businesses to prevent breaches before they happen. With full visibility and control over your data, you’ll never have to waste hours on incident tracking or rely on manual tagging again. We believe that every business deserves affordable, and user-friendly tools to meet the challenges of modern governance, privacy, and data security. Contact us today to see how Breezy AI can help you protect your data and stay ahead of evolving regulations!
Investor
Jun 2024
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. AI is an extremely powerful tool that must be created with safety and human needs at its core. OpenAI is dedicated to putting that alignment of interests first — ahead of profit. To achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. Our investment in diversity, equity, and inclusion is ongoing, executed through a wide range of initiatives, and championed and supported by leadership. At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.
Investor
Feb 2024
Campsider est la destination #1 des sportifs pour séquiper en seconde main. Achetez, vendez du matériel sélectionné et garanti, en toute confiance et avec des conseils de spécialistes ! Notre mission : rendre accessible laventure en pleine nature et protéger nos terrains de jeu avec à une économie plus circulaire.
Show all 7 entries ↓
Investment activity
2024–2025 · 3 investments
2024220251
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