Berlin-based LegalTech startup Noxtua secures 80.7 million euros in a Series B financing round and develops a customized AI solution for the European legal market.
The former Xayn AG, now known as Noxtua, is positioning itself as a leading provider of sovereign artificial intelligence for the legal sector in Europe. With the recently completed financing round led by renowned German legal publisher C.H.Beck and other strategic investors such as Northern Data, CMS and Dentons, the company now has the necessary resources to realize its vision of a European legal AI solution. The term “sovereign AI” describes systems that are developed within a specific jurisdiction, are based exclusively on local data and comply with the regional regulatory framework.
Unlike competing American products, Noxtua’s AI model is specifically trained on European legal texts and takes into account the strict German and European data protection regulations. This is particularly relevant for law firms, which are obliged to maintain absolute confidentiality in accordance with Section 203 of the German Criminal Code (StGB) and the provisions of the German Federal Lawyers’ Act (BRAO).
Three central components form the core of the Noxtua platform: The Noxtua Research Model enables precise answers to legal questions by analyzing 55 million legal documents from the C.H.Beck archive. Noxtua Voyage Embed, a search algorithm developed in collaboration with the Stanford spin-off Voyage AI, outperforms OpenAI’s embeddings in the area of legal texts by a factor of two. In addition, the integrated Beck-Noxtua tool will combine C.H.Beck’s extensive legal databases with Noxtua’s AI-supported functions from the third quarter of 2025.
The platform offers numerous practical functions for lawyers. These include the automated creation of legal documents taking into account jurisdictional nuances, a matrix analysis to identify discrepancies in contract portfolios and multilingual support for the precise translation of legal documents between German, English and French.
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Noxtua’s investor structure reflects a strategic combination of legal and technical expertise. C.H.Beck provides access to 55 million legal documents, Northern Data provides the necessary computing infrastructure with 4,000 NVIDIA H100 GPUs, while CMS and Dentons provide valuable feedback on practicability through pilot programs in corporate legal departments.
Compared to international competitors such as Lexis AI, Noxtua stands out due to its focus on European law and compliance with strict data protection regulations. The system’s architecture isolates sensitive data on servers based in the EU and avoids the use of American cloud providers. To minimize AI-generated inaccuracies, Noxtua relies on a hybrid model of Retrieval Augmented Generation (RAG) and human review for low-confidence outputs.
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Executive Summary
Noxtua (formerly Xayn) has raised €80.7 million in a Series B funding round led by legal publisher C.H.Beck
The company develops sovereign AI solutions specifically for the European legal market in compliance with all relevant data protection regulations
The platform comprises three core components: Noxtua Research Model, Noxtua Voyage Embed and Beck-Noxtua for legal research, document generation and compliance checks
Unlike US-based competitor products, Noxtua’s technology is optimized for European legal systems and meets the strict requirements of §203 StGB and BRAO
The company plans to expand to France and Italy by the end of 2025, adapting the models to the local legal systems
