Your proprietary custodian solution is built on the proven, trusted technology and reputation of LMAX Group. Why is this especially important when it comes to delivering custodial services?
LMAX Group has been delivering proprietary technology solutions trusted by institutional clients for 15 years. We’ve supported global banks, asset managers, and financial institutions with infrastructure that’s resilient, scalable, and secure. A track record of reliability and trust is especially important in custody, where clients are entrusting us with the safekeeping of valuable assets.
In the digital world, trust becomes even more critical. Digital custody places a premium on security, technological strength and operational discipline, which can be more difficult for clients to vet than custody of traditional assets and the physical security of a steel bank vault, so trust is everything.
Our custody platform, established in 2018, is built for scalability, with institutional-grade security embedded at every layer to secure private keys that allow access to wallets. We follow traditional rigorous risk and control frameworks, giving clients confidence that their digital assets are safeguarded with the highest standards of compliance, governance, and oversight.
Delivering digital custody isn’t just about securing private keys, but it’s about building trust through proven infrastructure, strong controls, and a track record of institutional reliability to safely secure, deposit and withdraw digital assets. That’s what sets LMAX Group apart.

Please tell us a little about the operation of your wallets infrastructure and how they are secured.
Our wallet infrastructure has been designed from the ground up with institutional-grade protection in mind.
We use proprietary code, giving us complete control over our custody platform with minimal reliance on third parties. This significantly reduces the potential for external vulnerabilities or third-party hack vectors and allows us to build and maintain a highly robust and adaptable infrastructure.
Private keys are protected using hardware security modules (HSMs), which are certified to FIPS 140-3 Level 3 standards. These devices incorporate multiple layers of tamper resistance and authenticated encryption to safeguard access to wallets.
Our wallets themselves are fully air-gapped and remain offline at all times. They are geographically distributed across multiple secure, isolated data centres to further mitigate location-based risk.
To initiate a withdrawal, we enforce a secure offline signing process. This requires physical access to our secure facilities and involves a multi-signature protocol governed by rigorous operational and security controls. All processes are subject to regular audits and oversight, ensuring a custody environment that meets the requirements of even the most risk-conscious clients.
What are some of the key features that institutions are looking for that your custody solution provides?
Institutions require a sophisticated custody solution that is not only secure and operationally robust but also seamless to integrate into existing trading, payment and settlement flows. Our platform is designed with these priorities at its core.
Clients can benefit from flexible wallet structures depending on the type of activity and/or regulatory requirements. Omnibus wallets or individually segregated on-chain wallets are available on our custody platform.
Institutions require real time and reliable access to their assets and there are multiple options to integrate to the LMAX Group custody platform via automated APIs or utilise the LMAX Custody User Interface to get real time reporting on positions and initiate deposits/withdrawals.
We are used to offering services to some of the largest institutions in the world across our traditional product suite and our custody clients can also benefit from the same 24/7 operational support, including direct access to blockchain specialists. Our team is available around the clock to assist with everything from routine operations to complex, time-sensitive queries, providing the kind of high-touch service institutional clients expect.
What direct benefits does the solution deliver and what types of clients are utilising it?
Our custody solution was purpose-built to support the LMAX Digital ecosystem, and its core value lies in its seamless integration across all products across the digital business line.
One of the primary use cases is enabling efficient and secure interaction with LMAX Digital, our spot crypto currency exchange. Clients can pre-fund digital assets, manage collateral and execute digital spot trades efficiently without needing to move assets off-platform.
Beyond digital asset trading, the solution also unlocks access to a range of LMAX Group traditional products with a simple API that connects to clients existing systems. Clients can generate wallets, deposit digital assets and use those assets held in custody as collateral to trade FX, CFDs, and other financial instruments across the LMAX Group ecosystem. This cross-asset flexibility is particularly valuable for institutions looking to optimise capital and collateral efficiency across multiple asset classes.
We serve a diverse client base that includes brokers, hedge funds, liquidity providers, proprietary trading firms, and asset managers. These clients rely on LMAX Group custody not just for secure safekeeping, but as an integrated, multi-asset solution that supports both innovation and operational performance.

What Digital Assets do you support with your custody solution?
Our technology stack is designed to be blockchain-agnostic, which allows us to support multiple networks with ease. Because we own and control our platform end-to-end, we can deploy support for new assets quickly and securely.
That said, asset support is both a technical and risk decision. We prioritise blockchains and tokens that align with our institutional client base and our internal compliance and risk criteria.
We currently support custody of all tokens listed on LMAX Digital spot crypto currency exchange, as well as any SPL and ERC-20 tokens that meet our standards.
What approach do you take to regulatory compliance to ensure your custodial services are meeting all necessary requirements?
Regulatory compliance is embedded across our digital business, mirroring the frameworks that underpin LMAX Group’s traditional financial operations.
Our digital business is licensed and compliant in Gibraltar, with a roadmap to expand our offering under additional licenses as the global landscape evolves. Our AML and KYC processes are aligned with best-in-class standards used across global financial services offerings.
We also implement governance, risk, and control procedures across the firm to ensure consistent oversight and accountability. LMAX Group follows international norms and rules regarding all aspects of our operation and undergoes independent audits, including SOC reports, ISO certifications and audits by PwC.

In what ways do you expect institutional custody of Digital Assets to evolve further over the next few years and how will LMAX Group be positioning itself to cater for the expected rising demand?
We expect to see significant evolution in institutional digital asset custody driven by greater global regulatory clarity, particularly in the United States. This shift will pave the way for traditional bank custodians to enter the space, bringing increased institutional confidence and demand. LMAX Digital is positioned to integrate with these custodians, supporting connectivity between traditional finance and digital asset infrastructure.

In the coming years, we expect to see greater institutional demand for segregation of funds and separation of functions across the digital ecosystem. This will potentially mean the separation of exchange and custody services. This risk control function is already the industry standard in the traditional financial space, and for good reason. Clients want the option to utilise their own custodian or appointed third party custodian to maintain segregated accounts or to utilise off-exchange custody models, where assets are held securely with a regulated custodian but still available for trading. This will give clients flexibility and confidence in how their collateral is managed.
Additionally, we anticipate a growing role for stablecoins, as fungible collateral for trading and particularly as the fiat leg of digital asset transactions. We’re focused on supporting this shift by evaluating existing and emerging stablecoin issuers, ensuring operational readiness for 24/7 minting and burning, and integrating only those assets with the potential to scale.

