Hardware Wallets Companies

ERA Wallet manufactures a card-sized, air-gapped hardware cryptocurrency wallet designed to reduce blind signing risks in decentralized finance transactions. The device features ERA Lens, a transaction decoding system that displays transaction details including token amounts, recipient addresses, and smart contract function calls on the device screen before signing occurs. The wallet operates in two firmware modes: a Bitcoin-only mode with reduced attack surface, and a multichain mode supporting Bitcoin, Ethereum, Solana, Tron, and over 100 DeFi protocols. Security mechanisms include five entropy sources for key generation, encrypted NFC recovery cards as an alternative to paper seed phrases, and support for up to ten wallets on a single device. The physical design includes an IP67 waterproof enclosure, Gorilla Glass protection, and an E Ink display for transaction verification.

G-Knot develops a hardware crypto wallet that uses finger-vein biometric authentication in place of traditional passwords and seed phrases, claiming to be the first product of its kind. The device scans subcutaneous vein patterns using near-infrared light and generates a zero-knowledge cryptographic proof stored locally, so no raw biometric data leaves the device or is held by a central authority. The wallet supports up to 24 authentication patterns per user across eight fingers and is designed for individual crypto holders seeking self-custody without the risk of lost recovery phrases. G-Knot also issues a native token, GKNT, intended to serve as a gas and governance token for an associated blockchain layer, with staking rewards and sub-cent transaction fees.

Keycard is a hardware wallet manufacturer that produces NFC-based smart card devices for secure self-custody of cryptocurrency private keys. The product line includes the Keycard smart card and the Keycard Shell, an air-gapped hardware wallet employing a modular architecture in which each physical card stores a single mnemonic phrase. The Keycard Shell holds EAL6+ secure element certification and operates as open source software. The system supports Ethereum and is compatible with mobile, desktop, and air-gapped deployment configurations. Keycard maintains affiliations with the Status and Logos ecosystem and implements the Clear Signing standard for transaction verification.