AnchorWatch — Bitcoin Custody Insurance via Lloyd's of London

AnchorWatch is a U.S.-based bitcoin insurance company operating as a Lloyd's of London Coverholder. Its core product is insurance coverage for bitcoin held in the Trident Vault, a proprietary custody architecture that uses a nested multisig structure: the policyholder maintains their own 2-of-3 multisig key set, and AnchorWatch maintains a separate multisig key set, with signatures from both required to authorize any bitcoin transaction. This structure ensures neither party can move funds unilaterally. The Trident Vault supports timelocks, programmable spending conditions, and — as of June 2025 — an Inheritance Protocol that integrates time-locked recovery paths and designated beneficiaries into each vault at the custody layer. AnchorWatch currently serves U.S. retail and commercial clients holding between $250,000 and $100 million in bitcoin, with plans starting at $100 per month. Coverage limits extend to $500 million per policyholder. The company raised $3 million in an early funding round focused on making multisig self-custody accessible to a broader range of bitcoin holders.