# NGRAVE > The most secure wallet ever built. NGRAVE is a digital asset security company that makes a self-custody hardware wallet system. It helps users store private keys offline and manage crypto through an air-gapped device, a metal key backup, and a companion app. NGRAVE is a digital asset security company that builds hardware and software for self-custody of cryptocurrency. Its core offering keeps private keys fully offline through an air-gapped hardware wallet, paired with a companion mobile app and a metal-based recovery backup. The company targets individuals and institutions seeking to hold their own keys rather than relying on a custodian, with an emphasis on eliminating network-based attack surfaces. The offering addresses the common risks of self-custody, such as device compromise and loss of backup material, by isolating key generation and transaction signing from any internet or wireless connection. Transactions are authorized through QR-code based communication between the wallet and the mobile app, so the signing device never connects to a network. The hardware wallet has undergone third-party security evaluation, and the company describes its backup method as resistant to physical damage over long periods. The product lineup centers on a hardware wallet, paired with a steel recovery backup and a companion mobile application for portfolio viewing and transaction management. Bundled packages combine the wallet and backup for a complete self-custody setup. The offering is used by individual holders of digital assets, as well as resellers and partners who distribute customized versions of the wallet. - Type: Company - Sector: Custody and Wallets - Status: Active - Founded: 2018-01-01 - Profile: https://thegrid.id/profiles/ngrave ## Products - [NGRAVE ZERO](https://thegrid.id/profiles/ngrave): NGRAVE ZERO is an air-gapped hardware wallet that stores private keys offline and signs transactions using QR codes rather than a network connection. It runs a custom secure operating system with tamper resistance and biometric authentication, and integrates with third-party wallet extensions to enable staking, swapping, and bridging while keys stay isolated. The device is used by individuals seeking self-custody across multiple blockchains and a wide range of tokens. (Hardware Wallet, Live, Main Product) - [NGRAVE GRAPHENE](https://thegrid.id/profiles/ngrave): NGRAVE GRAPHENE is a stainless steel backup product for storing the recovery key generated by a hardware wallet. It splits an encrypted key across two plates so that neither plate alone can reveal the key, requiring both to reconstruct it. The backup resists heat, water, corrosion, and physical shocks, and supports a recovery process if the upper plate is lost, making it suited for users seeking durable offline key storage. (Hardware Wallet, Live) - [NGRAVE LIQUID](https://thegrid.id/profiles/ngrave): NGRAVE LIQUID is a mobile wallet application for viewing balances, managing NFTs, and initiating transactions while a companion hardware wallet keeps private keys offline. The app communicates with the hardware device via QR codes to authorize actions, letting users send, receive, and track assets across multiple blockchains and tokens. It also provides access to buying and swapping crypto through integrated third-party providers. (Wallet, Live) ## Links - [Main](https://ngrave.io) - [Blog](https://ngrave.io/en/blog/overview) - [Whitepaper](https://a.storyblok.com/f/126258/x/ce57decb2f/ngrave-white-paper-a-secure-end-to-end-solution-for-the-self-sovereign-management-of-digital-assets.pdf) - [Media Kit/branding](https://a.storyblok.com/f/126258/x/daede84098/ngrave-press-kit-logos.zip) - [Terms of Service](https://ngrave.io/en/terms-and-conditions) - [Privacy policy](https://ngrave.io/en/privacy-policy) - [Discord](https://discord.com/invite/gapxmWEBNJ) - [Facebook](https://www.facebook.com/ngrave.io) - [Instagram](https://www.instagram.com/ngrave.io) - [GitHub](https://github.com/ngraveio) - [LinkedIn](https://www.linkedin.com/company/ngrave) - [YouTube](https://www.youtube.com/channel/UCJDIZfcaACOTMT_tc3IKaAg/featured) - [Twitter / X](https://x.com/ngrave_official) ## Legal This data is provided under two licensing models. Model 1 - open data. 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