Crypto custody for banks, brokers and other financial institutions

For banks, brokers, asset managers and family offices, entry to the digital assets market is no longer simply nice to have. If they want to remain competitive and fit for the future, it’s a strategic necessity. But getting there is a challenge, due to regulations, technical hurdles and strict security requirements – crypto custody in particular is critical for institutions, yet complex. Boerse Stuttgart Digital allows you to store your customers’ digital assets and your own in a professional, secure and tried-and-tested manner.

Custody as a service: Third-party custody is easier than having your own infrastructure

When deciding on a crypto offering, institutional players face the fundamental question of whether to go for internal or external custody.

• Building your own custody: Does it make sense to have your own custody infrastructure to store digital assets?

• Custody as a service: Or is it more efficient and cost-effective to outsource the infrastructure plus all related requirements and tasks?

An internal crypto custody solution often involves complex technical and operative hurdles, not to mention adhering to regulatory requirements such as MiCAR (Markets in Crypto-Assets Regulation) and ToFR (Transfer of Funds Regulation, also known as the Travel Rule). In contrast, third-party custody gives you time to concentrate fully on your core business and customer relationships.

Boerse Stuttgart Digital Custody: A secure, cutting-edge crypto custody platform

We relieve your compliance department of all tasks and processes to do with custody – so you can quickly enter the market with a crypto offering for your customers. Boerse Stuttgart Digital Custody is designed as an integrated platform built on security, regulatory compliance and operative excellence, supplemented by functions from bookkeeping to blockchain forensics – covering all processes necessary for regulation.

Liquidity management, bookkeeping, transactions and blockchain forensics in a single solution

Unlike fiat currency custody, Boerse Stuttgart Digital Custody is much more than just a digital vault. Setting up a custody solution can be very time consuming. We take on all central crypto custody topics for you, for 120 crypto currencies at the time of writing (June 2026):

• Liquidity management

• Detailed bookkeeping

• Transaction management

• Blockchain forensics as part of AML checks (anti-money-laundering)

• Transfer of Funds regulation

In addition, our brokerage solution can be seamlessly integrated into your custody product – also later on.

We also enable cost-saving off-chain settlement for internal transactions by splitting physical blockchain holdings and allowing logical allocation of holdings to individual customers in the system (bookkeeping). This saves transaction costs, enables faster processing times and considerably simplifies reconciliation.

MiCAR license and crime insurance that covers all risks

We are the first German crypto service provider to receive an EU-wide license for crypto custody business according to MiCAR from BaFin. So you are guaranteed maximum legal security and adherence to the highest standards in the areas of investor protection and IT security. Our platform reduces the burden on your compliance team by taking on complex tasks for you as standard. These include adhering to Anti-Financial Crime (AFC) and the Travel Rule (ToFR).

One focus of the solution is on risk management for digital asset custody. We adhere to the highest security standards, including ISO 27001 and SOC 2 Type 1 certifications of the information security system. In addition, your assets and those of your customers are protected by crime insurance underwritten by a consortium led by Munich Re and Zurich.

This gives you comprehensive protection against multiple risks, such as hacking, internal or external fraud, or theft.

Multi-step custody system with hot, cold and ice-cold wallets

Another fundamental part of our risk management and security standards is a multi-layered custody concept that combines various wallet types to provide an optimum balance of liquidity and security.

• Ice-cold wallets

• Cold wallets

• Hot wallets

The majority of assets currently in custody are found in fully air-gapped, ice-cold wallets, developed and operated by us. For daily operations we use hot wallets, based on market-leading MPC-CMP (multi-party computation) technology.

Our own cold-wallet solution, VAULT, reduces dependence on third parties and gives us full sovereignty over the whole security stack.

Flexible custody options for every business model

Boerse Stuttgart Digital Custody is designed to be flexible, enabling new business models as well as supporting and expanding existing ones.

Sub-custody for licensed institutions (B2B2C)

You already have your own MiCAR license and want to expand the portfolio for your customers quickly and securely – but without the complexity of having your own infrastructure? In this model, you outsource technical custody to us, while we act as an invisible sub-custodian in the background. You maintain full control over your customer relationships.

Full service for institutions without their own crypto license (B2B2C)

You want to offer your customers cryptocurrency trading, but do not have your own MiCAR license for custody provision? Use our onboarding model, where we act as license-holder and take on the whole regulatory responsibility. This shortens your time-to-market, while you stay focused on your core business. Of course, you can also switch to the sub-custody model later on.

Custody of your own assets (B2B only)

As an ETP provider or company, you want to store crypto assets securely and strictly separated from your own assets? We provide a fully segregated wallet infrastructure that ensures clear separation of assets and gives you the required proof of reserve. We are happy to handle data exchange with third parties relevant to you, for example authorised participants and trustees.

Fiduciary custody via Boerse Stuttgart Digital

Entering the digital asset market does not have to be complex or involve uncertainty. Choosing Boerse Stuttgart Digital Custody gives you a solution that is secure and compliant with regulatory requirements, with an easy-to-use frontend that integrates seamlessly into your ecosystem.

In our comprehensive white paper on the custody solution, you’ll find all the technical details of the product, plus how fiduciary custody reduces risks, protecting you and your customers in the event of fraud.

We’ll be glad to advise you in a 1:1 chat and find out about your specific requirements. We look forward to hearing from you!