Blockaid is an on-chain security platform founded in 2022 by former Israeli cyber intelligence operatives. The company provides real-time threat detection and response for organisations building in the web3 space, covering both on-chain and off-chain vectors. Its platform has scanned over 5.9 billion transactions and reportedly prevented more than $13 billion in theft.
The platform bundles several distinct capabilities: smart contract monitoring, transaction simulation, dApp scanning, token security tooling, and active threat hunting. Together these give web3 operators pre- and post-transaction visibility alongside internet-wide scanning, enabling both risk mitigation and security research. Customers include Coinbase, MetaMask, Uniswap, OpenSea, Stellar, and Backpack.
Blockaid has raised $83 million from Sequoia Capital, Greylock Partners, Google Ventures (GV), and Ribbit Capital. The company operates from offices in New York and Tel Aviv.