Bitcoin Self Custody

Bitcoin self custody to the highest security standards

We provide technical support for the secure self custody of your Bitcoin. You receive solutions with protection against key loss and a worry-free inheritance arrangement.

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Opernplatz, Frankfurt am Main Personal support Absolute discretion
Schwarzberg – Bitcoin self custody with multisig security
Why self custody

The key to wealth autonomy

Bitcoin is a mobile store of value that allows true ownership. The basic prerequisite for this is secure self custody.

Risks for Bitcoin holders

Exchanges: no real ownership, risk of a hack
ETFs: paper claims without control
Single-sig wallet: single point of failure
Without an estate plan: Bitcoin potentially lost for heirs

The Schwarzberg approach

Multi-layered security concept with redundancy
Sole control over your keys
Geographic distribution of keys
Estate planning across generations
Services

Our service

We provide technical support for creating Bitcoin self custody solutions for private individuals (HNWI) and companies. You retain sole control of your Bitcoin wealth at all times and can simultaneously achieve the highest level of security with the help of a multi-layered key security concept.

Wealth autonomy

Only with secure self custody do your Bitcoin remain mobile and protected against third-party access.

Protection against key loss

The security concept with geographic distribution shields you from a single point of failure.

Inheritance planning

We support your heirs reliably on all technical questions. For secure custody across generations.

Personal support

From implementation to ongoing monitoring, we stand by you personally as your IT partner.

Comparison

Self custody with Schwarzberg

The risks associated with Bitcoin are usually attributable to centralised providers such as exchanges or ETFs, not to Bitcoin itself. Without ownership of the private keys you rely solely on the provider's guarantee that you will retain full access to your Bitcoin at all times.

We enable you to take the technical step to true wealth autonomy while reducing the risks of independent custody without professional guidance.

Schwarzberg
Crypto exchange
Bitcoin ETF
Self custody
Control over your keys
✓
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✓
Protection against key loss
✓
✓
✓
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Protection against third-party interference
✓
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✓
Protection against corporate insolvency
✓
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✓
✓
Protection against wallet-provider risk
✓
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Secure inheritance succession
✓
✓
✓
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Verifiability of ownership
✓
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✓
Unrestricted access
✓
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✓
Personal 1:1 support
✓
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Setup in under 20 min.
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✓
✓
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Lost Bitcoin
0
1M+
0
3.5M+
The team

Personal support from proven experts

Dr.-Ing. Ayhan Celebi, co-founder of SEEDOR and partner at Schwarzberg

Dr.-Ing. Ayhan Celebi

Co-Founder SEEDOR

Co-founder of SEEDOR – market leader for Bitcoin backup solutions, with years of experience in technical consulting for secure Bitcoin self custody.

Florian Bruce-Boye, physicist, Spiegel bestselling author and partner at Schwarzberg

Florian Bruce-Boye

Physicist, Spiegel bestselling author

Physicist, Spiegel bestselling author, founder of "Der Bitcoin Podcast"; has been hosting technical colloquia on Bitcoin for family offices for many years.

Learn more about us
References

What our clients say

Storing Bitcoin was a delicate topic for us until now, as the risk of losing access is unacceptable. With Schwarzberg we have found a solution that meets our requirements. Through their in-depth expertise they have proven to be a partner we greatly value.

Family Office

Munich

At last I have a solution that protects not only me but also my family. It is reassuring to know that my children can access my Bitcoin in an emergency. I particularly appreciate the approachable, down-to-earth way the complex subject was made understandable.

Jürgen K.

Lisbon

Absolute peace of mind. My growing Bitcoin holdings kept giving me headaches and I am delighted to finally have the issue solved in a way that matches their value. Thank you.

Leopold S.

Frankfurt

It was important to our foundation board to hold the Bitcoin directly. The associated risks, however, had seemed greater to us than with third-party custody at our previous provider. While researching we came across Schwarzberg and engaged them after several conversations. We could not be happier. We now have self custody, clear inheritance arrangements and feel safe in how we handle it.

Family Foundation

Düsseldorf

Questions & answers

Frequently asked questions

We provide private individuals (HNWI) and companies with technical support for the independent custody of their Bitcoin holdings. Our expertise lies in redundant, multi-layered self-custody concepts that ensure the highest security and the client's sole control.
You only truly own your Bitcoin when you hold the private keys. As long as your Bitcoin sits on an exchange, there is a permanent risk of total loss. Self custody of Bitcoin, however, is not trivial either, and improper implementation carries its own risks. With our protocol-based technical security concept and built-in redundancies, we reduce these risks to an absolute minimum.
We provide technical support for setting up your security architecture with cold storage in self custody as well as multi-signature solutions including estate planning, so that your assets remain permanently safe and available.
We provide exclusively technical support for the self custody of Bitcoin. That is, we do not hold or manage Bitcoin for our clients. We never have access to the private keys. Likewise we do not provide any advice on crypto assets, meaning we make no recommendations on the purchase, sale or valuation of crypto assets or crypto service providers. Our services are exclusively technical in nature.
We focus on the personal support of private individuals (HNWI) and companies with Bitcoin holdings above EUR 1,000,000.
We never have access to your private keys and no knowledge of the respective storage location. You retain one hundred percent wealth autonomy.
As part of setting up your security concept, we create a detailed estate plan. This ensures that during your lifetime no one but you has access to your wealth. In the event of your death, a multi-stage process is initiated that guarantees your heirs access to your Bitcoin. Your wealth thus remains fully protected during your lifetime and is reliably transferred in the inheritance case to the persons you have designated.
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Contact

Let's start the conversation

Write to us for a no-obligation introductory call. We will get back to you personally.

Email
info@schwarzberg.co
Address
Schwarzberg BSC GmbH
Opernplatz 14
60313 Frankfurt am Main
Frankfurt am Main

Opernplatz 14

Our office is located in the heart of Frankfurt, right at Opernplatz. In-person meetings by appointment.

Map: Schwarzberg BSC GmbH, Opernplatz 14, 60313 Frankfurt am Main
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Schwarzberg BSC GmbH – office at Opernplatz 14, Frankfurt am Main