blockchain-security
(6)
Fireblocks
Fireblocks began with a $200 million crypto heist and a stubborn question: how do you move digital money without handing attackers the keys? Eight years later, its answer has become an operating system for institutions moving value onchain.
Blockaid
Blockaid is a web3 security company that acts as a real-time trust layer for onchain finance, simulating and validating blockchain transactions before they execute to stop scams, drainers, exploits, fraud, and compliance risks. Its detection engines are embedded inside major wallets, exchanges, and protocols - including Coinbase, MetaMask, Uniswap, Stellar, and OKX - screening hundreds of millions of transactions a month and protecting hundreds of billions of dollars in digital assets. Founded in 2022 by former Israeli cyber-intelligence operators, the New York- and Tel Aviv-based company has raised roughly $89 million and is expanding from consumer wallet protection into institutional compliance infrastructure.
Veridise
Veridise is an Austin-based blockchain security company spun out of the UToPiA program-analysis research group at the University of Texas at Austin. It hardens Web3 by pairing expert human auditors with proprietary tools built on formal methods, fuzzing and program analysis. Veridise audits smart contracts, zero-knowledge circuits, blockchain implementations and dApps, and has completed 150+ audits for infrastructure protocols including Scroll, Linea, Succinct, Manta Network, RISC Zero and Semaphore.
Cubist
Cubist is a security-first Web3 infrastructure company that builds hardware-backed key management and confidential compute for digital assets. Its flagship platform, CubeSigner, keeps cryptographic keys sealed inside secure hardware (HSMs and AWS Nitro Enclaves) while giving developers low-latency signing through revocable sessions and a programmable policy engine - resolving the old tradeoff between cold-wallet security and hot-wallet speed. Founded by applied cryptographers and security researchers from Carnegie Mellon and UC San Diego who designed primitives underlying Ethereum and Avalanche, Cubist serves staking providers, DeFi protocols, bridges, and institutions building on internet capital markets.
Drosera Network
Drosera Network is a decentralized incident response protocol that aims to be an 'immune system for Ethereum.' It lets DeFi protocols deploy 'Traps' - small, off-chain-defined smart contracts that continuously monitor on-chain state, detect anomalies or exploits, and trigger automated emergency responses (like pausing functions) before an attack drains funds. A decentralized network of Operators watches those Traps and pushes verified responses on-chain, turning security from an after-the-fact audit into a live, programmable defense layer.
Coincover
Coincover is a UK-based digital asset protection company that helps institutions and their customers hold and recover cryptocurrency safely. Founded in 2018 in Cardiff, it pioneered the wallet disaster recovery category, offering encrypted key backup, automated recovery, fraud detection and theft protection that integrate directly into exchanges, custodians, banks and wallet providers. Coincover has protected over 22 million wallets, safeguards 600+ businesses, and works with names like BitGo, Fireblocks, Ledger, Gemini and Ripple.