Xavier Niel
Founder @ Kima Ventures
Paris, France
Xavier Niel is a seed investor at Kima Ventures in Paris focused on Software and Artificial Intelligence. Xavier Niel is based out of Paris, Ile-de-France and is the Co-Founder and CEO of NJJ Capital. Xavier previously worked at Worldnet as a Founder. Xavier Niel attended Saint Michel de Picpus Catholic private high school.
- Total investments:
- 140
- Last investment:
- Lead investor:
- 14%
Last updated:
For AI agents: llms.txt
Industries Xavier Niel invests in
Stages Xavier Niel invests in
Countries Xavier Niel invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1M–$70M
- Series A
- $3M–$23M
Investment Focus
Industry
- Software 23 (16%)
- Artificial Intelligence 16 (11%)
- SaaS 11 (8%)
- Internet 11 (8%)
- Mobile 9 (6%)
Stage
- Seed 49 (35%)
- Series A 28 (20%)
- Funding Round 13 (9%)
- Series B 9 (6%)
- Angel 6 (4%)
Country
- France 74 (53%)
- United States 13 (9%)
- United Kingdom 4 (3%)
- Canada 2 (1%)
- Spain 1 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Arlequin AI provides an AI-native platform for critical decision-making and high-stakes data analysis. Its technology uses unsupervised and topological AI to identify patterns, relationships, trends, and causal links across large datasets without generating text or relying on context windows. The platform supports applications including financialanalysis, forensics, due diligence, logistics, supply chain analysis, cybersecurity, and intelligence. | $32.6M / Series A / Sep 10, 2026 | ||
| Upstream is a collaborative email client with channels and task-tracking, offering context and transparency for efficient team decisions. | $3M / Pre-Seed / Jun 03, 2026 | ||
| Europe’s next-generation AI lab for a quantum world. | $29.3M / Angel / May 05, 2026 | ||
| Riminder operates as an AI assistant that automates talent assessment by leveraging state of the art deep learning technology. The company's mission is to leverage both Data and AI to understand people and unlock their full potential. Riminder was founded in Paris in 2016. | $7M / Seed / Apr 08, 2026 | ||
| Advanced Machine Intelligence develops artificial intelligence systems that model real-world environments using sensor data. The organization focuses on building machine learning architectures that form abstract representations of physical and digital environments, allowing systems to reason, predict outcomes, and plan sequences of actions. Itsresearch includes world models that process continuous and complex data while filtering unpredictable elements to support structured decision making. The technology is designed to enable AI agents to evaluate the consequences of actions and operate under defined safety and control mechanisms. Advanced Machine Intelligence collaborates with industry and research communities to explore applications of these systems in areas such as industrial automation, robotics, wearable technology, and healthcare. The company also publishes research and develops software frameworks that support experimentation, deployment, and evaluation of intelligent systems. | $1B / Seed / Mar 10, 2026 | ||
| BottleCap AI is a company that focuses on architecture-first, efficiency-focused basic LLMs designed to reason better per unit of CPU and enable previously impossible applications. | $7.5M / Seed / Jan 29, 2026 | ||
| Gradium.ai provides audio language models that enable natural, expressive, ultra-low latency voice interactions at scale, unifying speech generation, transcription, voice transformation, and dialogue in a single neural architecture.The platform acts as an audio-native counterpart to text-based large language models, processing tasks like real-timespeech-to-speech with delays under 200 milliseconds through optimized architectures, efficient tokenization, and hardware-aware deployments. It supports multilingual capabilities in English, French, German, Spanish, and Portuguese, with plans for expansion. | $70M / Seed / Dec 02, 2025 | ||
| Genesis AI operates as a physical AI lab and full-stack robotics company. | $105M / Seed / Jul 01, 2025 | ||
| Mobile.club is a smartphone rental without obligation. | $2.3M / Series A / Apr 29, 2025 | ||
| Pixmania is an e-commerce website that provides buying and selling of speakers, cameras, headphones, and mobile devices. | $12.1M / Seed / Jul 02, 2024 | ||
| See all 140 investments → | |||
Co-Investors
About Kima Ventures
Kima Ventures promotes the growth of startups, supporting them in the fastest and most effective ways.
Kima Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Alexis Robert
Partner
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Felix DE BREUCKER
Investor
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Jean de La Rochebrochard
Partner
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Xavier Niel
Founder
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Xavier Niel
Founder
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FAQ
What does Xavier Niel invest in?
Xavier Niel invests primarily in Software, Artificial Intelligence and SaaS startups, most often at Seed and Series A stage. Most of the 140 investments tracked by Shizune back companies in France. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Xavier Niel's check size?
Xavier Niel typically joins rounds of $1M–$70M at Seed and $3M–$23M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Xavier Niel participates in.
How do I contact Xavier Niel?
Public channels for Xavier Niel include LinkedIn, X (Twitter) and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Xavier Niel last invest?
The most recent investment recorded for Xavier Niel closed in Sep 2026. Shizune tracks 140 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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