Yes. We hold the majority of our client bitcoin offline on devices held in underground vaults or with a regulated, insured cryptoasset custodian.
We do not hold client funds in wallets which can be unlocked via a single private key. All funds are stored in multi-signature addresses, meaning that no single person ever has access to funds stored with Coinfloor.
We also publish monthly bitcoin audits on the blockchain so that you can independently verify that your bitcoin remains in our custody. See here for more information.