In 2025, the European startup market has once again reminded us that big deals don’t just happen around large-scale IPOs or American giants. Throughout the year, AIN has written about dozens of cycles that show where tech Europe is really heading: from health tech and quantum computing to climate tech, fintech and AI infrastructure.
AIN summarizes the biggest investment deals involving CEE companies in 2025, bringing together key cycles you may have missed and providing details.
Complete ŌURA
In October, ŌURA, Finnish manufacturer of the most trusted smart ring, Oura Ring, raised more than $900 million in Series E funding led by Fidelity Management & Research Company with participation from ICONIQ and contributions from Whale Rock and Atreides. The investment values ŌURA at approximately $11 billion.
ŌURA Ring is a smart ring for personalized health data, offers daily information and advice, promoting healthy habits and linking individual well-being to collective results.
Finnish IQM quantum computers
In September, QM Quantum Computers, a Finnish global leader in full-stack superconducting quantum computers, raised $320 million in a Series B venture capital round, bringing its total funding to $600 million. The round was led by Ten Eleven Ventures and supported by Tesi.
IQM Quantum Computers, develops superconducting quantum computers and provides complete quantum systems for on-premises use as well as cloud access to its hardware. IQM works with high-performance computing centers, research institutes, universities and corporations, and operates globally with offices in Europe, Asia and the United States.
Romanian Dexory
Dexory, a Romanian and London-based provider of real-time intelligence, visibility and autonomy solutions for warehouses, announced this in October raised $165 million Series C round. The round was led by Eurazeo’s Growth team, with the participation of LTS Growth and Endeavor Catalyst, alongside existing investors.
Finnish GoByBike
In March, GoByBike, a bike service with social benefits based in Espoo, obtained 125 million euros in financing from international credit investors Santander and Castlelake to increase its capacity to provide cost-effective bicycles to Finnish employers and employees.
The GoByBike platform allows companies to offer bicycles as a staff benefit, promoting daily mobility and well-being at work. Operating with thousands of employers across Finland, GoByBike has become a popular provider in the local employee benefits market.
Polish wealth
In February, Wealthon, developing an ecosystem of digital financial solutions for small and medium-sized businesses, obtained 115.5 million euros (PLN 531 million) backed by 3TS, which provided equity financing and a group of angel investors.
Wealthon is a fintech company that has evolved from a lending platform to an all-in-one financial ecosystem for SMBs. It combines point-of-sale, lending and payment services to support businesses in the hospitality, retail, e-commerce and other sectors, offering tools for payments, financing and managing daily operations.
Lithuanian AI casting
In May, Cast AI, a Miami and Vilnius-based application performance automation (APA) platform that transforms cloud operations, closed a $108 million Series C round investment round led by G2 Venture Partners and SoftBank Vision Fund 2, with participation from Aglaé Ventures and existing investors.
The company develops a machine learning-based platform that automatically optimizes Kubernetes clusters in real-time, helping organizations reduce cloud costs, improve performance, and strengthen the security of their cloud infrastructure.
Learn more: Alphabet, OpenAI and NVIDIA. What were the biggest deals in AI in 2025?
Estonian Sunny
In August, Estonian renewable energy company Sunly obtained Loans of 85 million euros of the European Investment Bank (EIB)The European Bank for Reconstruction and Development (EBRD) and SEB will build four solar parks in Latvia with a total capacity of 329 MW, with a longer-term plan to develop the sites into hybrid energy parks by adding wind power and battery storage to improve grid stability and energy security.
Previously, in March, Sunny received 62 million euros EIB loan financing in collaboration with local commercial banks SEB and Luminor.
Exaforce, Czech company
In April, Exaforce, a San Jose-based cybersecurity startup co-founded by Czech Jakub Pavlik, raised $75 million in Series A funding. The round was led by well-known investors Khosla Ventures, Mayfield and Thomvest Ventures, and will help the company scale its solution.
Exaforce develops AI-based solutions to automate security operations. Its Agentic SOC platform uses autonomous AI agents to support real-time threat detection, investigation and response, helping security teams improve efficiency and accuracy.
Czech Mews
In March, Mews, a Czech hotel technology unicorn, announced that it raised $75 million as part of a financing round led by Tiger Global. Existing investors Kinnevik, Battery Ventures and Growth Equity from Goldman Sachs Alternatives also participated.
Mews is a hospitality technology company that develops a cloud-based property management system for hotels and serviced apartments. Its platform helps automate operations such as guest management, payments and reservations, while integrating with a wide range of third-party solutions.