> ## Documentation Index > Fetch the complete documentation index at: https://docs.tori.finance/llms.txt > Use this file to discover all available pages before exploring further. # Institutional Custody > Hold trUSD and strUSD with a regulated custodian Three institutional custodians support trUSD and strUSD: Anchorage Digital, BitGo, and Cactus Custody. Funds and corporate treasuries that keep digital assets with a regulated custodian can hold Tori's tokens in their existing accounts, under their existing approval rules. ## What institutional custody means An institutional custodian is a regulated firm, usually a trust company or a bank, that holds digital assets on behalf of its clients. The custodian holds the private keys, and the client never handles them. Each client sets its own approval rules: who can request a transfer, how many approvals it requires, and which addresses can receive funds. Nothing leaves the account until those rules are met and the custodian has run its own checks. Client assets are held separately from the custodian's own. Many institutions can only hold assets this way, because regulation or their own investment policy requires it. For them, custodian support determines which assets they can hold at all. ## Supported custodians | Custodian | Custody entity | Regulated as | | - | - | - | | [Anchorage Digital](https://www.anchorage.com) | Anchorage Digital Bank National Association | US national trust bank, chartered by the Office of the Comptroller of the Currency (OCC) | | [BitGo](https://www.bitgo.com) | BitGo Bank & Trust, National Association | US national trust bank, chartered by the OCC | | [Cactus Custody](https://www.mycactus.com), part of BIT (formerly Matrixport) | Matrix Trust Company Limited | Hong Kong trust company, licensed by the Companies Registry | Custodians enable each asset separately, and support can differ between a custodian's legal entities. Before the first deposit, ask your custodian to confirm that trUSD or strUSD is enabled for the entity that holds your account and to set up a deposit address. Then verify that the token contract it shows matches the address on the [contracts page](/resources/contracts). If your custodian is not listed, ask it to add trUSD and strUSD and contact us at [partnerships@tori.finance](mailto:partnerships@tori.finance). Custody changes who holds the keys. It does not change what the tokens are: trUSD remains a synthetic dollar backed by trading positions, and the risks set out in [Risk Disclosures](/resources/risks) apply to both tokens wherever they are held. How the protocol holds its own reserves is a separate arrangement, covered in [Backing & Reserves](/solution/backing). ## Holding strUSD in custody strUSD requires no action while it is held in custody. It is an ERC-4626 vault token, so rewards raise the amount of trUSD each strUSD is worth while the balance stays the same. There is nothing to claim, and the token does not rebase. Staking and unstaking are contract calls made from the address that holds the tokens. Unstaking requires two: one to start the 7-day cooldown and one to claim the trUSD when it ends. Confirm that your custodian supports these calls. If it does not, transfer the strUSD to a wallet that does before unstaking. The [strUSD page](/products/strusd) covers the exchange rate and the cooldown in full. ## Next steps Direct minting and redemption for verified participants The token contracts to match before the first deposit How the exchange rate and the cooldown work Read these before holding trUSD or strUSD This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.