Crypto Companies Directory

Zest Protocol is an on-chain lending and borrowing protocol designed for Bitcoin, operating on the Stacks layer. The protocol enables users to deposit BTC to earn yield or borrow against Bitcoin holdings through open-source smart contracts. The system is built to support native BTC integration via the Stacks Nakamoto upgrade.

zkSwap Finance is a non-custodial decentralized exchange deployed on ZKsync Era, a Layer 2 scaling solution for Ethereum that employs zero-knowledge proof technology to reduce transaction costs. The protocol provides token swapping functionality, liquidity pools, staking mechanisms, and a Swap2Earn rewards system that distributes ZFPoints to traders. The platform includes a BulkSend tool for batch transactions, a token approval revocation function, and a portfolio tracking utility. The system is governed through a DAO structure using Snapshot voting. The protocol is designed for users seeking Ethereum-compatible trading with reduced transaction fees compared to mainnet operations.

Zodia Custody is an institutional digital asset custodian offering secure storage, staking, and trading infrastructure for professional clients including asset managers, hedge funds, banks, governments, and crypto-native firms. Its core custody product is complemented by staking services (including Pectra staking), an interchange trading layer, and a Gateway API for programmatic integration. The platform operates across multiple regulated jurisdictions — UK, EU, Hong Kong, Singapore, Australia, and UAE — reflecting a deliberate multi-regulatory footprint. Backed by a $36M funding round announced in April 2023, Zodia Custody was originally established as a joint venture between Standard Chartered and Northern Trust, positioning it as a bank-grade custodian for institutional digital assets.

Zokyo is a blockchain security and advisory firm offering smart contract audits, protocol audits, cryptography reviews, penetration testing, and token economic design under a single service umbrella. The firm supports projects across more than 15 chains including Ethereum, Solana, Cosmos, Avalanche, and TON, and covers programming languages such as Solidity, Rust, Move, and Cairo. Its client base spans DeFi protocols, L1/L2 networks, wallets, and cross-chain infrastructure, with notable clients including LayerZero Labs. Zokyo also operates an Econ Lab practice covering token economy design, compliance audits under frameworks such as MiCA and ADGM, and long-term project support, positioning it as a multi-discipline crypto-specialist consultancy rather than a protocol or product company.

Zumo is a UK-based digital-assets-as-a-service platform that provides modular infrastructure for businesses seeking to embed crypto capabilities into their products. Its core offering spans institutional-grade custody and asset protection, fiat on/off ramp connectivity, crypto execution, regulatory enablement, and identity and financial crime compliance tooling. The platform is designed for fintechs, neobanks, wealth managers, crypto firms, and institutional digital asset businesses operating under UK and EU regulatory frameworks, including MiCA. A notable differentiator is Zumo's sustainability focus, including an ESG data and net-zero strategy product called Oxygen, which helps clients align digital asset activities with decarbonisation goals. The company is registered and operates in the United Kingdom.

ZunaBet is an online casino and sportsbook platform that operates as a cryptocurrency-native gambling service. The platform accepts cryptocurrency deposits, including Bitcoin, Ethereum, and Binance-issued tokens, as its primary payment method. The casino section offers slots, live casino tables, table games, arcade games, bonus-buy titles, and Megaways slots. Gaming content is sourced from providers including Pragmatic Play, SmartSoft, and BSG. The platform includes a sports betting section alongside its casino offerings. The system is designed to serve users who hold cryptocurrency and seek wagering environments with provably fair mechanisms or cryptocurrency-exclusive features.

ZyCrypto is a crypto-native news publication covering Bitcoin, Ethereum, DeFi, Web3, and broader blockchain industry developments. It publishes news articles, research pieces, press releases, sponsored content, and interviews aimed at retail crypto audiences. The site offers advertising and press release submission services for crypto projects seeking coverage. Content spans market analysis, protocol updates, and regulatory developments, with named staff writers contributing bylined articles.