List of Custodian projects on Polygon (2026)

Transfero Crypto is a crypto-as-a-service platform that provides custody, on/off ramps, swaps, and institutional trading services for digital assets. Businesses use it to store client crypto holdings, convert between fiat and crypto, move assets between wallets and exchanges, and execute large-volume institutional trades without operating their own blockchain infrastructure. The platform serves fintechs, exchanges, wallet providers, and financial institutions expanding into digital asset services, with custody, storage, and transfers powered through an institutional-grade custody partner.

Paribu Custody is an institutional digital asset custody service providing infrastructure to cryptocurrency exchanges, banks, and other organizations. It is built on ColdShield®, a proprietary security architecture combining Multi-Party Computation, Hardware Security Modules, and Secure Enclave technologies. Two service models are available: a hybrid model in which 95% of client assets are held in cold storage while the client retains up to 5% in hot wallets, and a full custody model in which all wallet infrastructure and key management are fully delegated. The platform offers native staking access through partner operators, AML monitoring through Elliptic, and Travel Rule compliance through ClearTX. It holds ISO 27001 certification and SOC 1 Type II and SOC 2 Type II assurance reports.

Liminal Digital Asset Custody is a custodian service that holds and safeguards institutional digital assets through segregated accounts and hardware security modules. It combines multi-party computation and hardware-based key protection with insurance coverage and proof-of-reserve reporting to protect client holdings. Exchanges, funds, and other institutions use the service to store assets across multiple blockchain networks under a compliance-oriented custody framework.

Liminal HSM Vault is a custody product combining multi-party computation and hardware security modules to provide cold storage for digital assets held by regulated institutions such as banks. It secures private keys within dedicated hardware while distributing signing authority across a hybrid MPC framework, reducing single points of failure. Banks and similarly regulated institutions use it to hold digital assets under stricter hardware-backed key protection than standard wallet infrastructure.

Cactus Custody is a regulated institutional digital asset custodian holding client assets in unique, segregated blockchain addresses verifiable on-chain at any time. Private keys are stored offline in hardware security modules meeting FIPS 140-3 Level 3+ or CC EAL 4+ standards, distributed across globally redundant infrastructure. The platform provides customizable multi-role approval workflows, warm and cold storage, DeFi integration, ETH native staking, and full transaction audit trails.

Cactus Oasis is an off-exchange settlement solution that holds institutional digital assets in segregated buffer accounts during trading with centralized exchanges, OTC venues, or market makers. Assets remain isolated until trade settlement is confirmed, removing counterparty exposure from insolvency or fund misappropriation at trading venues. The product monitors positions in real time and notifies users when settlement requirements or risk thresholds are not met.

Komainu Custody is a regulated digital asset custody solution providing secure, segregated, and verifiable on-chain storage for institutional clients with insolvency-remote trust structure and compliance oversight.

A custody platform implementing MPC-CMP protocol for distributed private key management and collaborative signatures. The system provides both self-custody and full custody modes with hardware security module integration, trusted execution environment protection, and multi-level approval workflows. Features include automated AML/KYT monitoring, role-based access controls, off-chain settlement through OpenLoop network, and developer infrastructure via WaaS APIs. The platform supports institutional multi-party governance requirements with customizable rule engines and transparent audit trails.

B2BinPay is a cryptocurrency payment platform that lets merchants, financial institutions, and other businesses accept, hold, and move digital assets under a single account and dashboard. It provides merchant checkout integration with automatic settlement, wallet infrastructure for storing and transferring assets, and crypto-to-fiat conversion tools accessible through a unified API. The platform also offers custody, staking, and instant crypto-to-crypto conversion services, and can be deployed under a client's own branding as a white-label solution. Businesses across industries such as e-commerce, gaming, and gambling use the platform to accept payments across multiple blockchains and hold or grow digital asset balances.

Bitcoin Suisse Custody is an institutional crypto custody service built on the Bitcoin Suisse Vault, providing segregated addresses, robust offline and physical security, and Swiss key storage. Users access assets via web and app with API support for operations and optional governance participation where supported.

Amdax Platform is a crypto investment platform providing full-reserve custody and self-directed trading across multiple digital assets. Users invest independently, automate periodic purchases via DCA from €50, or delegate portfolio management to Amdax experts across multiple managed strategies with dedicated personal account managers.

Amdax Institutional Custody is a enterprise-grade digital asset storage through multi-signature cold storage and segregated custody architecture, enabling institutional clients to securely store and manage crypto assets. The system provides qualified custodian services with multi-layer security protocols and regulatory compliance frameworks.

Secure custody solution for digital assets tailored for Asian institutions.