Blockchain startup ecosystem
We track 71 organisations in this sector across 6+ countries.
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Tatum
Tatum 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.
Tenderly
Tenderly is a Belgrade-based blockchain development platform that provides smart contract monitoring, debugging, simulation, and infrastructure tools for Web3 developers. The platform allows teams to test transactions, simulate contract interactions, and set up real-time alerting before deploying to mainnet, significantly reducing the risk and cost of bugs in decentralized applications. Tenderly has raised over $40 million from investors including Spark Capital and Accel, and is used by leading DeFi protocols and blockchain teams globally. It is one of Serbia's highest-profile venture-backed startups and a key piece of developer tooling infrastructure in the Web3 ecosystem.
Tokeny
A Luxembourg fintech founded in 2017 by Luc Falempin and Daniel Coheur that provides an institutional-grade, no-code tokenisation platform for the issuance, transfer, and lifecycle management of digital securities on public blockchains. The company's T-REX (Token for Regulated EXchanges) open standard enables compliance-native security tokens. Tokeny tokenised over €28 billion in assets between 2017 and 2023 and was acquired by Apex Group in May 2025.
UN:BLOCK 2027
UN:BLOCK is a two-day blockchain, fintech and AI conference held in Riga, drawing around 3,000 attendees from 50+ countries and 700+ companies. Day one focuses on blockchain, digital assets and AI agents, while day two covers fintech, payments, banking regulation and financial infrastructure. The event is backed by the Investment and Development Agency of Latvia (LIAA).
UNCHAIN Fintech Festival 2026
5th edition of CEE's premier fintech festival at Oradea Fortress with 700+ delegates from 40+ countries; tracks span banking digital transformation, AI roadmap, InsurTech, next-gen payments, digital assets, and sustainable finance.
W3N 2026
The sixth edition of Estonia's emerging-tech festival, held at Vaba Lava in Narva on the EU's eastern edge. Gathers builders, founders, and operators around Web3, AI, and creative industries with a substance-over-hype focus — a rare flagship tech event outside the capital.
WARSAW DEMO DAY
The grand finale of the Colosseum Hackathon in Poland, held at The Shire on the 12th floor of Zebra Tower, Mokotowska 1. Teams that submitted to the hackathon and marked Poland as their country pitch their Solana projects to investors and an expert jury for a share of a 5,000 dollar prize pool, with three minutes to present and two for questions. Presentations are in English.
Web3 Global
Organiser of Web3 Warsaw, positioned as Eastern Europe's largest blockchain and Web3 conference and the anchor of Warsaw Blockchain Week. The two-day event spans themed stages on tech, NFT, gaming, and AI, plus a hackathon, an awards night, and dozens of curated side events.
Web3 Warsaw 2026 (Sept 2026)
Web3 Warsaw 2026 is positioned as Eastern Europe's largest blockchain and Web3 conference, anchoring Warsaw Blockchain Week. The two-day event expects thousands of attendees and hundreds of speakers across themed stages spanning tech, NFT, gaming, and AI, and includes a hackathon, an awards night for startups and founders, and dozens of curated side events.
Webrazzi Fintech 2026
Webrazzi's anniversary edition fintech conference at Wyndham Grand Istanbul Levent, bringing together Turkish industry leaders to discuss digital banking, open banking, blockchain integration, AI-driven financial applications, and digital payments.
Wojtek Kostrzewa
A prominent Polish business leader (ex-CEO of ITI Group and mBank), Wojtek pivoted to fintech entrepreneurship and angel investing. As CEO of blockchain fintech Billon Group, he personally invested in Billon and other tech ventures. He was honored as Business Angel of the Year in 2018 for his consistent support of startups. His angel investments include Billon (DLT payments), Quedex (crypto exchange), and AdEmotion (AI marketing). Associated startups: Billon Group, Quedex, AdEmotion.
