Custody Companies

AMIS Technology is a Taipei-based financial technology company operating under the MaiCoin Group that provides institutional-grade digital asset custody and virtual asset management solutions. Its core product suite includes a Virtual Asset Custody Service built around Threshold Signature Scheme (TSS) technology, specifically a Hierarchical TSS (HTSS) implementation that eliminates single-key storage risk while supporting role-based signing controls. The company also offers the Qubic Wallet, a consumer-facing crypto wallet product. AMIS was founded by Alex Liu, who also co-founded the MaiCoin exchange and MAX crypto trading platform in Taiwan. The company publishes open-source cryptographic research and tooling, positioning itself as both a product provider and a technical contributor to blockchain infrastructure.

Bitline is a mobile application that enables cryptocurrency holders to access cash or casino chips at participating casinos by using their digital assets as collateral without triggering taxable events. Users deposit eligible crypto assets into a Bitline custody account, select a participating casino, and configure a transaction amount, with funds accessible within minutes. The platform operates continuously and has established partnerships with gaming technology providers to deliver crypto liquidity services at select casino locations in the regulated land-based gaming sector.

Bosonic is an institutional digital asset infrastructure platform that provides cross-custodian net settlement, liquidity aggregation, repo and borrow-lend services, and tokenized securities trading. The platform uses atomic settlement mechanics to eliminate counterparty and settlement risk by enabling trades to clear across multiple custodians without requiring pre-funding. Bosonic Securities operates a FINRA and SEC-registered Alternative Trading System for digital asset securities. The platform serves institutional trading desks and market makers.

Cubist provides hardware-backed key management and embedded wallet infrastructure for Web3 teams, protocols, and end users. Its core product, CubeSigner, offers self-custody key management for organizations and a wallet-as-a-service API for embedding non-custodial wallets in consumer applications. The system includes a programmable policy engine that enforces signing rules as code, hardware security module backing for keys, and specialized workflows for Bitcoin and Babylon staking, cross-chain bridge security through its Bascule Drawbridge product, and on-chain AI agent key delegation. The platform supports use cases including DeFi protocols, staking validators, payments, treasury operations, and gaming, with capabilities extended to confidential cloud functions for private smart contracts.

Custodia Bank is a Wyoming-chartered special purpose depository institution (SPDI) that provides digital asset payment and custody solutions to U.S. commercial customers. The institution was designed as a software platform with a bank charter to integrate digital assets with the traditional financial system under formal regulatory oversight. Custodia serves digital asset businesses, fintechs, corporate treasurers, trusts, pension funds, and startups requiring regulated access for cash management and digital asset transactions. Operating under the first SPDI legal framework in the United States, Custodia functions as a depository institution structured to access Federal Reserve clearing systems.

Delchain is a regulated financial services firm headquartered in The Bahamas, licensed under the Digital Assets and Registered Exchanges (DARE) Act and overseen by the Securities Commission of The Bahamas. The company provides institutional-grade digital asset custody using hardware security modules stored in offline banking vaults across multiple jurisdictions, alongside crypto-to-fiat settlement and OTC trading services. Its custody solution supports a range of assets including BTC, ETH, USDT, and various ERC-20 tokens, with segregation of duties and military-grade encryption as core security features. Delchain is affiliated with the largest private banking group in the Caribbean, positioning it as a bridge between traditional regulated finance and blockchain-native businesses seeking compliant financial infrastructure.

EDX Trust is the custody services division of EDX Markets, a digital asset exchange. EDX Markets has applied for a National Trust Bank Charter with the Office of the Comptroller of the Currency (OCC). EDX Trust is designed to provide institutional custody services for digital assets within a federally regulated trust framework. The charter application indicates intent to operate as a regulated custodian for institutional clients under federal oversight rather than through offshore or state-chartered structures. EDX Markets was established with participation from major financial institutions including Fidelity, Citadel Securities, and Charles Schwab.

Hidden Road is an institutional prime brokerage, clearing, and financing platform that serves hedge funds, asset managers, and other institutional clients operating across traditional and digital asset markets. The platform provides prime brokerage services for foreign exchange, precious metals, and digital assets, along with synthetic over-the-counter swaps through its Route28 offering. Additional services include derivatives clearing, sponsored access, and margin financing for digital assets. The system operates on a unified, quantitatively-driven risk management infrastructure capable of functioning across multiple trading venues and asset classes concurrently. The platform operates under a conflict-free model designed to prevent competition with clients and to avoid holding financial interests in counterparties or trading venues.

Layer1 is a stablecoin payments orchestration platform that provides infrastructure for custody, payments, liquidity, and compliance operations. The system enables financial technology companies, payment service providers, trading firms, and enterprises to integrate stablecoin and cryptocurrency payment capabilities through a standardized API requiring minimal code implementation. The platform manages gas fee optimization, wallet operations, multi-venue smart order routing, transaction reconciliation, and cross-border payment rails supporting both fiat and stablecoin settlement. Core components include merchant payment processing with automated currency conversion, treasury management tools, and global payments orchestration capabilities. The architecture is designed to support use cases spanning point-of-sale cryptocurrency acceptance, corporate treasury operations, and international payment settlement.

Lynq is a real-time digital asset settlement network operated by a broker-dealer and designed for institutional clients including market makers, OTC desks, and trading firms. The platform operates a segregated account framework with no onboarding costs or transaction fees. It combines partnerships with regulated entities and private blockchain technology provided by Tassat. The network is managed by three core partners: Arca Labs, Tassat, and tZERO, a regulated broker-dealer responsible for KYC/AML compliance, custody, and trading access. Consortium members include Crypto.com, FalconX, Galaxy, Wintermute, B2C2, and US Bank. Clients deposit funds into brokerage accounts, execute real-time settlement, and earn interest on idle assets. The system is designed to reduce counterparty risk and address market fragmentation in institutional digital asset workflows.

Membrane Labs provides institutional-grade credit and settlement infrastructure for cryptocurrency trading. The platform enables trading firms to execute trades across multiple exchanges while maintaining collateral in a unified location, rather than depositing assets separately at each venue. The core architecture addresses counterparty risk and capital efficiency challenges that arise from fragmented market structures. Key components include credit facilities and settlement mechanisms designed to serve hedge funds, trading firms, and professional market participants requiring integrated credit and custody-adjacent settlement capabilities across multiple trading venues.

MPCH provides key management and disaster recovery infrastructure for digital assets and critical systems in permissioned, high-stakes environments. The platform operates as a key holder and recovery authority. Its core products are Stronghold-DR, an air-gapped disaster recovery system for seeds, secrets, keys, and hardware signing devices, and Stronghold-KMS, a key management system. Both products are designed to support zero-trust architecture models. The platform serves enterprises, governments, and financial institutions requiring self-custody continuity without introducing new technology dependencies.

Narval is a DeFi gateway that enables institutional custodians and their clients to access decentralized finance protocols directly from custody environments without requiring browser extensions or blind signing mechanisms. The system integrates with existing custodian APIs through a single integration point, providing whitelisted and transaction-decoded access to protocols including Morpho, Ethena, and Spark. The architecture allows custodians to offer DeFi yield opportunities to institutional clients while maintaining custody controls. BitGo has integrated Narval's DeFi Gateway into its platform. The system functions as infrastructure for custodians seeking to provide DeFi access within institutional-grade security and operational frameworks.

NOW Custody is an institutional cryptocurrency custody platform that provides businesses with a single API to receive, store, convert, and manage digital assets across more than 800 supported cryptocurrencies. The platform is built around cold storage for 100% of user funds, with security practices aligned to SOC 2 Type II and ISO 27001 standards, hosted on AWS infrastructure. It targets neobanks, exchanges, payment platforms, gaming companies, lending platforms, and investment brokerages seeking to integrate crypto operations without building custody infrastructure in-house. Part of the broader NOW Ecosystem alongside ChangeNOW, the service has been operational since 2017 and positions itself as a B2B infrastructure layer for crypto-enabled financial products.

Sodot provides self-hosted MPC (multi-party computation) and TEE-based key management infrastructure for crypto businesses, enabling both custodial and self-custodial wallet products. Its two core products are MPC Infra, for building secure crypto applications, and Exchange API Vault, which protects trading API keys with enterprise-grade security for automated trading workflows. Customers include BitGo, eToro, Flow Traders, Flowdesk, and Exodus, with the platform reportedly securing tens of billions of dollars and millions of users. The self-hosted deployment model differentiates it from SaaS-based key management, giving operators full control over uptime, asset support, and vendor risk.

Tangany, based in Munich, is a highly innovative fintech company with a market leading b2b solution for the custody of digital assets (e.g. crypto currencies, tokenized securities, NFTs) on blockchain networks.

Tholos is a self-custodial MPC (multi-party computation) wallet and treasury management platform designed for crypto teams, funds, DAOs, and institutions. The platform distributes cryptographic key shares across signers' mobile devices such that no single party, including Tholos, holds a complete private key, thereby eliminating custodial risk. It supports over 30 blockchains including Bitcoin, Ethereum, Solana, Cosmos, and Hyperliquid through a unified dashboard. Core features include wallet management, banking operations, payments, and transaction approval workflows. The system enables multi-signature control of digital assets while maintaining self-custody principles across distributed signers.

Tungsten Custody Solutions Ltd is a regulated digital asset custodian headquartered in Abu Dhabi, operating under the Financial Services Regulatory Authority (FSRA) within the Abu Dhabi Global Market (ADGM) framework. The company provides institutional-grade custody services using military-grade hardware security modules (HSMs) and comprehensive insurance coverage, with integrated access to exchanges, liquidity providers, analytics, and tokenisation services. Tungsten operates in partnership with Zodia Custody, a custody platform with ties to Standard Chartered, and targets institutional investors, crypto miners, trading firms, ETP providers, foundations, venture capital funds, and exchanges. Its regulatory standing in ADGM positions it as a compliant custody option for entities seeking regulated digital asset storage in the UAE and broader Middle East region.

Turnkey provides wallet infrastructure and key management services for cryptocurrency applications. The platform offers embedded consumer wallets, business wallets, agentic wallets, and a white-labeled Wallet-as-a-Service product. Its architecture centers on secure key management within a Verifiable Cloud environment, enabling non-custodial wallet creation at scale without requiring developers to manage raw private keys directly. The system is designed as a backend layer for DeFi protocols, payment applications, AI agents, stablecoin platforms, and developer tooling builders rather than as an end-user-facing product. Core functionality includes policy-driven wallet operations and programmable infrastructure for institutional and consumer cryptocurrency use cases.