TopK, a Czech startup developing a next-generation search engine tailored for AI applications, has raised €4.6 million in seed funding.
The round was led by Earlybird, with participation from KAYA, Irregular Expressions, and several angel investors.
Solving search for structured and unstructured data
Founded in 2024 by Marek Galovič and Jerguš Lejko, TopK is building a hybrid search platform combining vector search, keyword matching, filtering, and ranking—all in one system. Their goal is to support developers and AI agents in accessing structured and unstructured data through a unified interface.
“The boom in AI-native products is pushing the limits of traditional search systems,” said Galovič. “We’re addressing that shift with a platform designed for high-performance, cost-effective, and flexible data retrieval.”
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Scaling the platform for enterprise use
TopK plans to use the funds to expand its team and develop an enterprise-grade offering for large-scale applications across industries like e-commerce, finance, healthcare, and law. Future capabilities will include support for natural language processing and multi-modal data integration.
Co-founder and CTO Lejko added, “We’re building the query layer for the world’s most advanced applications. We welcome design partners to challenge us and help improve the product.”
Backed by leading European investors
Earlybird, the lead investor, manages €2.5 billion and has backed 9 IPOs and 35 trade sales. KAYA, another key backer, focuses on Central and Eastern Europe and has invested in notable startups like Docplanner and Booksy.
TopK’s vision is to become the default infrastructure layer for search in the age of AI.
