NGRAVE is a fintech firm based in Brussels, Belgium that ngrave is a belgian digital asset security company that designs air gapped hardware wallets and cold storage products for self custody of cryptocurrencies. its main product zero is an offline hardware wallet, graphene is a stainless steel recovery phrase backup, and liquid is a companion mobile app that signs transactions via qr codes so private keys never touch an online device. products are manufactured in belgium. founded in 2018, the company targets both individual and institutional users seeking self sovereign key management. in january 2026 a group of investors including the lydian group acquired the company's core assets in a strategic restructuring, with co-founder ruben merre returning as chief executive. They serve clients in Belgium, European Union. NGRAVE is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/ngrave.