CryptoLions

CryptoLions is a Ukraine-based blockchain development and Web3 solutions company founded in 2018. Specialising in the Antelope (formerly EOSIO) ecosystem — including EOS, Vaulta, WAX, and Ultra blockchains — they operate as a full-service software engineering, block production, and consulting partner for decentralised application teams and enterprise clients worldwide.

Core Products/Services

CryptoLions offers a comprehensive range of blockchain-native development capabilities. Their service portfolio spans smart contract development, dApp frontend and backend engineering, API-as-a-Service infrastructure, code review, and strategic blockchain consulting. On the product side, the team has built and maintains several widely used open-source and commercial tools within the Antelope ecosystem:

• Jungle Testnet — The number one testnet for the Vaulta/EOS blockchain, established in March 2018 by CryptoLions and the Jungle Community. It provides a full sandbox environment for testing and debugging dApps and block producer nodes before mainnet deployment, and played a cornerstone role in the original EOS mainnet launch.
• MSIG Tool (msig.app) — A user-friendly web tool for creating, managing, and signing multi-signature (multisig) proposals on Antelope-based blockchains, designed to simplify complex on-chain governance and treasury transactions.
• SimpleAssets — A widely adopted open-source smart contract standard for creating digital assets — both fungible tokens and NFTs — on EOSIO/Antelope blockchains. Used in banking, gaming, collections, logistics, and enterprise contexts, with 106+ GitHub stars and 60+ forks.
• Tableronin — A lightweight and powerful data explorer providing deep insights into Antelope smart contract table data, with intuitive filtering, sorting, and the ability to connect to any open API endpoint.
• Jungle Testnet Monitor — A live network monitoring tool offering real-time block production, transaction, and network health data for the Jungle Testnet. Also offered as a white-label SaaS solution customisable for any Antelope blockchain.
• PresentHall — A Web3 virtual reality environment where teams and organisations can host thematic events, presentations, and interactive audience experiences.

Key Strengths

CryptoLions are recognised as one of the longest-standing Antelope ecosystem contributors, having been involved since the EOS genesis in 2018. Their technical depth covers the full blockchain development stack — C++ smart contracts, JavaScript/TypeScript frontends and backends, Shell scripting, and TypeScript-based tooling. They currently serve as a block producer (validator) on multiple Antelope chains including EOS/Vaulta, WAX, and Ultra (alongside validators like Ubisoft). The team has contributed foundational open-source infrastructure to the ecosystem and has 43 public repositories on GitHub.

Notable Clients/Projects

CryptoLions are among only seven validators on the Ultra blockchain (alongside Ubisoft), and manage the premier EOS/Vaulta Jungle Testnet used by hundreds of developers globally. Their SimpleAssets standard has been adopted across gaming, NFT, and enterprise blockchain projects, and they have supported community events for WAX-based DAOs.

Why Choose CryptoLions

For teams building on Antelope-compatible blockchains (EOS, Vaulta, WAX, Ultra, Telos, Proton), CryptoLions offer rare end-to-end expertise: from testnet infrastructure and block production to smart contract development, multi-signature tooling, blockchain data exploration, and immersive Web3 experiences. Their track record of open-source contributions and long-term ecosystem stewardship makes them a trusted development partner.