Arlequin AI Raises €28M Series A

Arlequin AI, a Paris-based startup developing a new alternative AI architecture for high-stakes decision-making, has raised €28 million in Series A funding. The company, which specializes in topological neural networks to analyze complex data for governments and enterprises, aims to use this capital to scale its international deployment and accelerate the development of its proprietary models.

Investors

The round was co-led by redalpine and OTB Ventures, with participation from Bpifrance’s Defence Innovation Fund. Existing investors Vsquared Ventures and 10x Founders also participated, alongside new investors Xavier Niel and ZEBOX.

Arlequin AI Use of Funds

The company will use the funding to accelerate the development of its proprietary topological neural network models, expand its international team, and grow commercial deployment across Europe and worldwide. The company is also planning to establish an AI lab in Silicon Valley.

About Arlequin AI

Founded in 2024 by Hugo Micheron and Antoine Jardin, Arlequin AI is a deeptech company that provides a scalable platform for analyzing relationships within large, fragmented datasets. Its technology is designed for security, defense, and enterprise applications where results must remain traceable, explainable, and grounded in evidence.

Funding Details

Company Website: https://arlq.ai

Company: Arlequin AI
Raised: €28M
Round: Series A
Funding Date: September 10, 2026
Lead Investor: redalpine and OTB Ventures
Additional Investors: Bpifrance’s Defence Innovation Fund, Vsquared Ventures, 10x Founders, Xavier Niel, ZEBOX
Software Category: Artificial Intelligence
Source: https://arlq.ai/news/arlequin-ai-series-a-topological-neural-networks