Top 15 European AI startups to watch in 2025

Supported by strong research institutions, government funding, and a growing tech ecosystem, these startups are combining smart ideas with powerful technology to build solutions that matter.

In this article, we highlight 15 of the most promising AI startups in Europe. These companies are not only attracting major investments but also leading the way in making AI more useful, scalable, and impactful in everyday life.

Mistral AI- Mistral AI is a French generative AI startup founded in 2023 by Arthur Mensch, Guillaume Lample, and Timothée Lacroix. The company quickly gained attention when it raised €105 million (about US$112 million) in a seed funding round, backed by top investors like Headline, Index Ventures, Lightspeed Venture Partners, and Bpifrance. With a total valuation of around US$2 billion, Mistral AI is rapidly becoming a major player in the AI spac

Collibra- Collibra is a data intelligence company that helps businesses get the most from their data. Our cloud platform connects the right data, insights, and tools to everyone who needs them. We bring IT and business teams together to create a data-driven culture for today’s digital world.

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Labelbox- Labelbox is a leading platform that helps teams build smarter AI applications by focusing on data. It’s designed for companies working with generative AI and large language models (LLMs), offering the right mix of human input and automation. Whether creating custom AI models, automating tasks, or discovering insights, Labelbox makes the process faster and more efficient.

Instabase- Instabase helps large organizations make sense of unstructured data scattered across different systems. Using generative AI and enterprise search, its platform analyzes and transforms raw data into clear, actionable insights. With its low-code tools, companies can quickly build custom apps for tasks like invoice processing, compliance automation, and creating AI assistants—without long development times.

Aleph Alpha- is a German AI startup founded in 2019 by Jonas Andrulis and Samuel Weinbach. With total funding of US$500 million, the company provides a platform that helps businesses and governments build and use generative AI tools. Their technology includes large language models (LLMs) trained in five languages, with the flexibility to customize these models for specific industry needs.

Nscale-Nscale was founded in 2024, is a Europe-based hyperscaler built specifically for AI. The company offers high-performance computing solutions optimized for training, fine-tuning and handling intensive AI workloads. What sets Nscale apart is its fully vertically integrated infrastructure—from its data centers to its software stack—all engineered within Europe. This integration allows Nscale to deliver unmatched performance, energy efficiency and sustainability, making it a strong choice for businesses pushing the boundaries of AI innovation.

SoundHound (Nasdaq: SOUN)- SoundHound is a voice AI company founded in 2005 and based in Santa Clara, California. It provides voice and conversational AI technology that helps businesses create amazing experiences for their customers. Using its own advanced technology, SoundHound offers fast and accurate voice AI in many languages.

Prem Labs- Prem Labs is a research lab based in Lugano, Switzerland, founded in 2023. They focus on creating open-source AI tools with a goal to make advanced AI easy to use, private, and customizable.

Latent Labs- Latent Labsfounded in 2023 and based in London with an office in San Francisco, is an AI company aiming to make biology programmable. They create advanced AI models that help design new proteins that don’t exist in nature. These models power their platform, allowing scientists to create and improve therapeutic molecules like antibodies and enzymes using computers.

Legora- Legora is a fast-growing LegalTech startup based in Stockholm. Founded in 2024, it offers an AI-powered platform that helps legal professionals review documents, do research, and draft faster and easier. The platform simplifies complex tasks by turning legal documents into interactive grids for quicker analysis and works smoothly with tools like Microsoft Word.

Orasio- Orasio is a new startup founded in Paris in 2025. They create AI technology that can analyze live video to improve public safety and security. Their system can spot important events, like people carrying weapons or the start of fires, in real-time. This helps security teams, cities, and private companies protect sensitive areas more effectively.

Tessl- Tessl founded in 2024 and based in London, is changing how software is made by putting AI at the center of the process. Instead of just helping developers, Tessl’s platform creates secure, high-quality code on its own, based on what each user needs. It turns simple language instructions into modular, tested code, then builds, tests, and maintains applications automatically. This saves a lot of manual work and speeds up development.

H Company- H Company founded in 2023 and based in Paris, builds advanced AI models to help workers be more productive and make smarter decisions. They focus on creating AI that can automate tasks and support complex decision-making, making work easier for organizations. Their long-term goal is to develop Artificial General Intelligence (AGI), which means very advanced AI systems. Their latest product, Runner H, is a web agent that performs better than top competitors in real-world tasks. Since starting, H Company has raised €175.5 million in funding.

Granola- Granola is a London-based startup founded in 2023 that helps people stay productive and organized with an AI-powered notepad. Unlike regular meeting bots, Granola works quietly on your device to transcribe and summarize meetings without needing to join the call. This makes it easy for busy professionals to capture important points and tasks without interruption.

Luzia- Luzia is a Madrid-based AI startup founded in 2023 that wants to make AI simple and accessible for everyone. Their main product is a personal assistant that works through WhatsApp helping users manage daily tasks by chatting naturally. Luzia focuses on ease of use and privacy, offering features like turning audio into text, translating messages, and creating content with chatbots. The company has raised nearly €40 million, showing strong support from investors.