Raphael Casteau

Group Client Partner @ Capgemini

📍 France🔄 Updated September 2026💼 5 investments📅 4 years investing🗓 Last invested Aug 2024
VC🌍 France
5
Total investments
3
Early stage
0
Mid stage
1
Late stage
4y
Years active

Portfolio

5 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor - General Partner
Aug 2024
Inovexus is a cross-border acceleration fund platform investing in early-stage B2B tech founders with a global ambition.
Seed Investor
May 2024
Jupi is out of stealth! Were building the Decision OS for high-growth tech companies. AI already helps us make solo decisions. But for team decisions? There’s no real solution. Just messy threads, long meetings, and manual work. Yet performance comes from one thing: better, faster, more consistent decisions across teams. 💡💡💡 Here comes Jupi, with 3 core capabilities: 1. 🧠 Real-time decision log: it’s a system of record for your team decisions from Jupi + Slack + emails + Notion and all your tools. With real-time checks and alerts to tell you: -> if a decision is not consistent with the company/team goals youve documented -> if a decision contradicts another made by another team -> if a decision is taking too long -> and ~12 use cases like this to keep your team consistent and performant You can also create your own checks in natural language. Zero setup. Just connect your tools, and start making better, faster decisions. The time-to-value here is spectacular. 2. 👥 The decision board: an interface for a team to make better, faster decisions that align with their goals. Like an opportunity layout in a CRM, its an interface for a team to move through the steps of Jupis decision-making framework. You can try it now on Jupi. Free. No gate. No form. Maybe you’ll create templates! 3. 🤖 Agentic execution: performing teams have 50 to 80% of the work executed by AI. Once a decision is done, Jupi recommends 3rd-party AI agents to execute it. 💡💡💡💡💡💡 We see a future where teams will be more focused on making decisions. What will differentiate the good, from the great? Not AI, itll be a commodity. But how they use collective intelligence. 💡💡💡💡💡💡
Seed Investor
Jun 2023
Rejoins le 1er club dinvestisseurs dédié à la transition écologique et à la souveraineté énergétique 🇪🇺 🌱 Sélection soignée de projets à très fort impact 🤗 Communauté active et engagée 😎 0 frais dadhésion 💸 Investissement dès 500€ ✔ Déjà 14 projets financés auprès de 3000 investisseurs. ✔ Des partenariats exclusifs avec Team for the Planet, la fondation Solar Impulse et de nombreux investisseurs. ✔ Un espace investisseurs pour suivre lactualité des projets financés. Ensemble, façonnons un futur enthousiaste 🌈 (et décarboné).
Seed Investor
Feb 2023
Notre mission est d’apporter de la modernité, de la sensualité, à la boulangerie traditionnelle. La qualité de nos matières premières, combinée à la simplicité de l’approche de nos chefs et meuniers, garantissent une expérience boulangère et pâtissière réjouissante. Tranché Rochechouart : 62, rue Marguerite de Rochechouart, 75009 Paris Tranché Batignolles : 20, rue des Dames, 75017 Paris Tranché Marais : 28, rue Saint-Antoine, 75004 Paris
Seed Investor
May 2022
YCombinator-backed Trendex connects the worlds top and most promising athletes, artists & creators with their fans through an innovative gamified experience. Trendex is an international, fast-growing startup supported by the most successful investors & stars in the world.
Experience · 8 entries
All (8)
Investments (5)
2025
Group Client Partner
Mar 2025
Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion. Make it real | www.capgemini.com
2024
Investor - General Partner
Aug 2024
Inovexus is a cross-border acceleration fund platform investing in early-stage B2B tech founders with a global ambition.
Seed Investor
May 2024
Jupi is out of stealth! Were building the Decision OS for high-growth tech companies. AI already helps us make solo decisions. But for team decisions? There’s no real solution. Just messy threads, long meetings, and manual work. Yet performance comes from one thing: better, faster, more consistent decisions across teams. 💡💡💡 Here comes Jupi, with 3 core capabilities: 1. 🧠 Real-time decision log: it’s a system of record for your team decisions from Jupi + Slack + emails + Notion and all your tools. With real-time checks and alerts to tell you: -> if a decision is not consistent with the company/team goals youve documented -> if a decision contradicts another made by another team -> if a decision is taking too long -> and ~12 use cases like this to keep your team consistent and performant You can also create your own checks in natural language. Zero setup. Just connect your tools, and start making better, faster decisions. The time-to-value here is spectacular. 2. 👥 The decision board: an interface for a team to make better, faster decisions that align with their goals. Like an opportunity layout in a CRM, its an interface for a team to move through the steps of Jupis decision-making framework. You can try it now on Jupi. Free. No gate. No form. Maybe you’ll create templates! 3. 🤖 Agentic execution: performing teams have 50 to 80% of the work executed by AI. Once a decision is done, Jupi recommends 3rd-party AI agents to execute it. 💡💡💡💡💡💡 We see a future where teams will be more focused on making decisions. What will differentiate the good, from the great? Not AI, itll be a commodity. But how they use collective intelligence. 💡💡💡💡💡💡
2023
Seed Investor
Jun 2023
Rejoins le 1er club dinvestisseurs dédié à la transition écologique et à la souveraineté énergétique 🇪🇺 🌱 Sélection soignée de projets à très fort impact 🤗 Communauté active et engagée 😎 0 frais dadhésion 💸 Investissement dès 500€ ✔ Déjà 14 projets financés auprès de 3000 investisseurs. ✔ Des partenariats exclusifs avec Team for the Planet, la fondation Solar Impulse et de nombreux investisseurs. ✔ Un espace investisseurs pour suivre lactualité des projets financés. Ensemble, façonnons un futur enthousiaste 🌈 (et décarboné).
Seed Investor
Feb 2023
Notre mission est d’apporter de la modernité, de la sensualité, à la boulangerie traditionnelle. La qualité de nos matières premières, combinée à la simplicité de l’approche de nos chefs et meuniers, garantissent une expérience boulangère et pâtissière réjouissante. Tranché Rochechouart : 62, rue Marguerite de Rochechouart, 75009 Paris Tranché Batignolles : 20, rue des Dames, 75017 Paris Tranché Marais : 28, rue Saint-Antoine, 75004 Paris
Show all 8 entries ↓
Investment activity
2022–2024 · 5 investments
202212023220242
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