Aiven
Helsinki, Finland · StartupManaged open source data infrastructure powering PostgreSQL, Kafka, and Elastic in the cloud.
StartupSeries CInfrastructureCloud
Directory
Infrastructure startup ecosystem
Founders, investors, and support organizations active in Infrastructure.
Better Stack
Prague, Czech Republic · StartupBetter Stack is a Prague-founded observability platform built by engineers for engineers, led by Juraj Masar (CEO) and Veronika Kolejak (COO). The company is known for combining speed, lower cost, and strong product design in a unified stack that covers uptime monitoring, log management, incident response, and status pages. Its technical positioning emphasizes standard SQL over proprietary query languages and high-performance analytics on ClickHouse-based infrastructure. Better Stack's January 2024 Series A and extension brought total funding to about $28.6M, with Creandum, KAYA Ventures, and Susa Ventures among key investors plus notable angels from Box, Flexport, Neo4j, Yelp, Codecademy, and UiPath. Publicly shared company metrics reported more than 200,000 developers and 4,000+ customers, and by 2026 Better Stack is widely viewed as one of the strongest Czech global DevTools contenders.
StartupGrowthDevToolsObservabilityInfrastructure
CityFibre
London, United Kingdom · StartupCityFibre is a full-fiber digital infrastructure scale-up building wholesale fiber networks across the UK. The company partners with ISPs and mobile operators to replace legacy connectivity with gigabit-capable infrastructure that supports residential broadband, enterprise services, and future smart-city and 5G capacity.
StartupLate StageInfrastructureTelecommunicationsSmart Cities
Cloud Native Days France 2026
Paris, France · EventCommunity-led cloud conference at CENTQUATRE-PARIS focused on practical engineering sessions over vendor marketing. Strong match for infrastructure startups and DevOps-first teams working on Kubernetes, platform tooling, and secure cloud operations.
EventEventsCloudDevToolsInfrastructureOpen SourceCybersecurity
CloudFest 2026
Rust, Germany · EventInternet infrastructure event hosted at Europa-Park. Price: about EUR 400-600 standard (often free with codes), EUR 1200 VIP. Strong for hosting, cloud security, and SaaS infrastructure startups.
EventEventsCloudInfrastructure
Corti
Copenhagen, Denmark · StartupCorti builds healthcare-specific AI infrastructure and models to support clinical documentation, coding, and workflow automation.
StartupGrowthHealthTechAIInfrastructure
Data Centre Congress 2026
London, United Kingdom · EventData center infrastructure conference exploring sustainable facilities, cloud infrastructure, and edge compute.
EventEventsCloudInfrastructure
Grow by Jose de Mello
Lisbon, Portugal · AcceleratorLaunched 2017. Corporate venture program connecting startups with the Jose de Mello Group in healthcare, energy, and infrastructure. Support: pilot agreements, corporate guidance, and potential customer contracts. Scope: National.
AcceleratorHealthcareEnergyInfrastructure
Hostinger
Kaunas, Lithuania · StartupHostinger is a web hosting and cloud services provider offering hosting, domains, and website tools. Launched in 2004 as a Lithuania-based startup, it serves over 4 million people in 150+ countries.
StartupGrowthWeb HostingCloudInfrastructure
InfraSEC Forum 2026
Warsaw, Poland · EventInfrastructure security forum hosted at Sound Garden Hotel focused on resilience of critical systems in utilities, telecom, and enterprise IT. High-signal venue for cybersecurity startups targeting B2B and public-sector pilots in Poland.
EventEventsCybersecurityInfrastructureGovTechEnterprise IT
Poolside
Paris, France · StartupPoolside is arguably the most important "import" to the European AI ecosystem in the last decade. Founded by Jason Warner (former CTO of GitHub) and Eiso Kant, the company started in the United States but relocated its headquarters to Paris in 2024 to tap France's deep talent pool in mathematics, systems engineering, and AI research. Its mission is unusually ambitious: not just to build code autocomplete, but to create the world's most capable AI for software engineering, with a long-term goal of systems that can build and evolve software autonomously. This framing has made Poolside a defining player in the AI-for-developers category. By 2026, Poolside has established itself as a core node in the "Paris AI Triangle" alongside Mistral and H. After a massive $500M Series B in late 2024 led by Bain Capital Ventures, the company launched its flagship foundation model trained on a distinct corpus of code, software architecture, and repository-level structure. The emphasis on engineering artifacts rather than general internet text allows Poolside's models to reason about large codebases, infer intent from architectural patterns, and propose higher-level refactors instead of one-off snippets. This technical posture differentiates Poolside from generalist models and makes it uniquely useful for enterprises grappling with decades of technical debt. The company's 2026 platform looks less like a plugin and more like a "shadow engineering team." Poolside can analyze legacy banking systems, plan migrations across stacks, and coordinate changes across modules while preserving compliance and auditability. That capability has made it a darling of large financial institutions such as HSBC and Citi, and it explains why strategic investors are embedded alongside venture capital. Poolside is also scaling Project Horizon, a 2-gigawatt AI data center campus in Texas in partnership with CoreWeave, while keeping its research and model development anchored in Paris. This split setup reflects a broader pattern: US-scale compute, European R&D depth. Poolside's ecosystem ties are deep. It is a central node at Station F and an active participant in the Paris AI Hub, and its relocation is often cited by the French government as a proof point for attracting foreign tech leadership. The investor roster underscores its strategic importance: Bain Capital Ventures led the growth round, DST Global joined as a late-stage backer, Xavier Niel provided early strategic support to facilitate the Paris move, and Nvidia is a hardware partner. In 2026, Poolside stands out as Europe's most credible attempt to build an AI-native software engineering stack at frontier scale.
StartupGrowthAIDeveloper ToolsInfrastructure
Pucek Investors
Warsaw, Poland · Angel InvestorEarly-stage angel fund led by Bartek Pucek, focused on globally scalable technology startups. The fund is known for founder-friendly terms, fast decision cycles, and co-investments with international VC firms.
Angel InvestorPre-Seed to SeedAIDeveloper ToolsInfrastructureDefense Tech
Qdrant
Berlin, Germany · StartupQdrant (pronounced "Quadrant") provides the memory layer for AI applications. As companies build AI agents in 2026, they quickly discover that large language models do not remember internal company data. Qdrant solves this by offering a high-performance vector database that stores embeddings for documents, images, and conversations and retrieves the most relevant context in milliseconds. That capability is the foundation of Retrieval-Augmented Generation (RAG) and agent workflows across enterprises. Born as an open-source project in Berlin, Qdrant has become a default choice for teams building on modern AI stacks, especially in Rust and performance-critical environments. Its adoption accelerated because it can run anywhere—from embedded devices to large Kubernetes clusters—without locking users into a proprietary cloud. This flexibility, combined with strong performance and transparent licensing, has allowed Qdrant to surpass older competitors in developer mindshare and production deployments. By late 2025 it had raised a Series B and was widely described as a "soonicorn" within the AI infrastructure category. The 2026 breakthrough is Qdrant's hybrid search engine. Pure vector search captures semantic similarity but can miss precise keyword matches that matter in enterprise contexts. Qdrant combines semantic retrieval with keyword filters and metadata constraints, enabling queries such as "find a part like this" while also honoring exact identifiers like "Part #404-X" or compliance tags. This hybrid approach is now table stakes for enterprise RAG, and it has made Qdrant the database of choice for large-scale deployments at organizations such as Discord, Mozilla, and Deloitte. Qdrant Cloud is the company's managed service offering and is growing quickly as enterprises move from prototypes to production. It provides enterprise controls, observability, and multi-region deployments without sacrificing the portability that developers expect from the open-source core. Qdrant's ecosystem roots include Techstars Berlin and a strong open-source community, where the project has amassed tens of thousands of GitHub stars. Its investor base includes Spark Capital, Unusual Ventures, 42CAP, and IBB Ventures, giving it both global capital and local Berlin support. In 2026, Qdrant is the clearest European winner in vector databases: the infrastructure layer that lets AI systems remember and reason over real company data.
StartupGrowthAIInfrastructureDeveloper Tools
Tatum
Prague, Czech Republic · StartupTatum is a developer platform that unifies dozens of blockchain protocols into a single API, allowing enterprises to build crypto features without specialized blockchain teams. The platform abstracts wallet creation, transactions, and smart contract interactions into simple endpoints. By 2026, Tatum positions itself as the “Stripe for crypto infrastructure,” serving banks and fintechs that want to launch regulated digital-asset services. Its focus is on reliability and developer speed rather than speculative crypto exposure.
StartupGrowthBlockchainInfrastructureDeveloper Tools