No official phone numbers are published by Cryptosteel. All communications are through email and social channels.
Cryptosteel is a Poland (PL)–based company specializing in indestructible seed phrase backup solutions for cryptocurrency users. Its flagship products, the Cryptosteel Capsule and Cryptosteel Cassette, allow users to store recovery seeds, private keys, and sensitive information in stainless steel form that can withstand extreme conditions. Unlike paper or digital backups, Cryptosteel ensures long-term survivability against fire, water, corrosion, and mechanical damage. It is widely used by individual crypto investors, institutions, and even hardware wallet manufacturers as a recommended backup tool.
Stainless Steel Construction: Built for durability and resistance to natural disasters.
Supports All BIP39 Wallets: Compatible with seed phrases from Ledger, Trezor, SafePal, and other wallets.
Two Backup Formats:
Cassette – Insert letter tiles to spell recovery words.
Capsule – Compact tube with letter tiles for discreet storage.
Extreme Resistance: Fireproof up to 1400°C, corrosion-proof, waterproof, and shock-resistant.
Tamper-Evident: Shows signs if someone has attempted to open or alter it.
Compact & Portable: Easy to hide or store securely.
No Third-Party Involvement: 100% offline storage with no reliance on external services.
Multi-Purpose Use: Stores recovery phrases, passwords, and sensitive personal data.