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Bitcoin Self Custody

The most secure self custody solution for private investors with significant Bitcoin holdings. Gain full ownership of your Bitcoin, protect it from online threats, and secure your assets completely offline in Switzerland.

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Own Your Private Key

When you store your Bitcoin with an exchange or bank, they own it. With Numbrs' self custody solution, you are the sole owner of your Bitcoin.

Disconnected from the Internet

Our offline storage solution enables clients to store their Bitcoin fully offline in Switzerland's state-of-the-art, highly secure data center.

Secured in Switzerland

Switzerland is the world’s most stable country and the largest wealth management hub with $3tn in private assets currently held in Switzerland.

Self Custody - The New Sovereignty

When you buy Bitcoin from an exchange or bank and store it there, they have full control over your assets as they control the private key to your Bitcoin. A private key is like a password that you can use to access and manage your Bitcoin. Anyone who knows your private key can make transactions without your permission.

By design, Bitcoin eliminates the risks of entrusting your assets to banks or any other third parties for the first time in history. Bitcoin was created to give people control over their money. Individual sovereignty is the idea that brought us into the Bitcoin space in the first place. This principle is in our DNA. That is why we offer an institutional grade self-custody solution for sovereign individuals.

With Numbrs, your Bitcoin really belongs to you and you alone. Only you own your private key, which is fully encrypted and secured in Switzerland. You are the sole owner of your Bitcoin and completely independent from banks or third party influences.

Ownership

The private key constitutes Bitcoin ownership. With Numbrs, you hold it - no one else. Even Numbrs has no access to it.

Protection

You can't lose your Bitcoin to online threats, bankruptcy, or hacker attacks because only you control your private key.

Sovereignty

Owning your Private Key means that you are independent from banks and other third-parties influences.

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Store Your Bitcoin Offline in Switzerland

We have developed the most secure offline storage solution in the industry. By definition, offline storage is a form of storage that is never connected to the internet. We enable clients to store their Bitcoin disconnected from the internet in a state-of-the art, highly-secure data center in Switzerland. With the offline storage solution of Numbrs, your private key is protected against any online threats and hacker attacks.

Our servers, which are never connected to the internet, are located in the high-security data center of an “ISO 27001” certified colocation partner in Switzerland. Once a client decides to store their Bitcoin in our offline storage solution, they simply and securely deposit their Bitcoin via the Numbrs web dashboard.

Bitcoin Self Custody - Web Dashboard

With the Numbrs web dashboard, you can control your Bitcoin easily and securely from any web-enabled device such as a smartphone, tablet, or desktop computer.

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Offline Storage

Send and receive your Bitcoin quickly and securely via the web dashboard.

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On-Chain Graphs

Understand Bitcoin price trends based on the most important key indicators.

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Technical Support

Stay informed of any updates related to your Bitcoin holdings.

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Bitcoin Balance

Review your Bitcoin balance and the most recent transactions.

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The Safest Way to Store Your Bitcoin

At Numbrs, we offer the safest way to store your Bitcoin. We are located in Switzerland, the most stable country in the world, and use advanced technology to guarantee the safety of your Bitcoin holdings. As a Self Custody solution, Numbrs allows its clients to become the sole owner of their Bitcoin and fully independent of any influence from institutions or any third party.

own your bitcoins

Self-Custody

With Numbrs, your Bitcoin really belongs to you and you alone. Only you own your private key, which is fully encrypted and secured in Switzerland.

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Offline Storage in Switzerland

We offer the best-in-class storage solution for Bitcoin. With Numbrs, your private key is stored fully offline and protected against online threats and hacker attacks.

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Military-Grade Encryption

Our security systems are designed in a way that we cannot decrypt our client’s Private Key. Numbrs has no access to our client’s Bitcoin at any time.

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Aligned Interests

Numbrs Self Custody solution is built to protect the Bitcoin of our shareholders, our partners, and the management team. The security of our clients is our security.

A Personal Conversation is Worth a Lot

Our business is based on personal relationships and mutual trust. We would be delighted to act as your reliable partner in the new world of Bitcoin Self Custody. As an independent Swiss company, we know the value of personal client relationships and professional support. Our experts would be happy to discuss our Self Custody solution with you.

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Switzerland - The Safe Haven For Bitcoin

Times are turbulent. In an interconnected world, political, economic, and social crises spread faster and further. Uncertainty is on the rise and individual freedom is increasingly threatened. We aim to resist this development by offering the best-in-class Bitcoin cold storage solution in the tradition of Swiss wealth management.

Switzerland's enduring neutrality, political stability, and modern data protection create an optimal environment for digital assets. To date, Switzerland is neither a member of NATO, nor the European Union. The distribution of power in its federalist system and its deeply-rooted direct democracy have protected Switzerland from authoritarianism for centuries.

Within this context, a unique range of secure and discreet asset-management services has emerged. The Swiss Constitution of 1848 and far-sighted banking legislation made Switzerland a safe haven for private assets, especially in times of crisis. Switzerland has been one of the world’s largest wealth management hubs for decades.

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Bitcoin Self Custody Booklet

For more information on our Self Custody solution, we offer a comprehensive booklet to potential clients. Learn more about the advantages and technical features in detail.

Bitcoin

Bitcoin - A New Asset Class

SELF-CUSTODY

The New Sovereignty

offline STORAGE

The Data Centre

THE FIRM

About the Company

Order the Booklet
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The Most Important Questions

What is self-custody?

When you buy or store Bitcoin with custodial exchanges such as Binance, Coinbase or Celsius, they have full control over your assets. This is because they control the private key to your Bitcoin. Until you withdraw your Bitcoin to a self-custody storage solution, you have no control over your private keys, which exposes your assets to severe privacy and security risks. In the case of bankruptcy, hack or confiscation, you can lose everything.

Numbrs is a self-custody solution that gives you complete control over your Bitcoin. A self-custody solution is made for clients that have understood the full potential of Bitcoin and want to take advantage of it. For Numbrs, this is a matter of principle. Bitcoin was created to give people control over their money. Individual sovereignty is the idea that brought us into the Bitcoin space in the first place. This principle is in our DNA. That is why we offer the world’s best cold storage solution for sovereign individuals.

What are the advantages of self-custody?

With Numbrs, your Bitcoin belongs to you and you alone. Your private key is fully encrypted and secured in Switzerland and you are the sole owner of your Bitcoin, granting you complete independence from banks and third-party influences.

Nobody can decrypt your private key - not even Numbrs. This means you are the only person who can access your Bitcoin. Your private key will be safely stored and encrypted in Switzerland. Numbrs has developed the world’s best institutional grade self-custody solution.

Numbrs Self Custody Bank or Exchange (Custodial)
Freedom. Send and store your Bitcoin without any restrictions. Limitations - Restrictions on how you can use digital assets held in custody. For example, you are not able to send your Bitcoin to a third-party provider.
Full ownership. Only the Private Key constitutes Bitcoin ownership. With Numbrs, you hold it - no one else. No Ownership - The custodial company holds your private keys and can access your Bitcoin at any time.
Low risk. You are in full control of your Bitcoin at any time. Higher risk - Entrusting the custodial company with security and all the decisions relating to your assets.
Decentralized. Owning your private keys means no one can take your Bitcoin away from you. There is no institutional or governmental influence. Centralized - Custodial services operate under government control. As such, they may be forced to freeze assets or disclose personal information to authorities.
Independence. Numbrs supports you in becoming a sovereign individual. We want our clients to be independent. Dependence - Custodial services don’t want you to be independent, as they control your assets.

What is Offline Storage?

Offline Storage means that the server on which your Bitcoin is stored, is completely offline. Cold storage is used to store digital currencies for the long term. By definition, cold storage is a form of storage that is never connected to the internet. It is the equivalent of storing assets in a bank vault.

What are the advantages of Offline Storage?

We have developed the most secure Offline Storage solution in the industry. With the Numbrs Offline Storage solution, your private key is protected against any form of online threat or hack. We are located in the most stable country in the world and utilize cutting-edge technology to ensure the safety and integrity of our clients’ Bitcoin holdings. The secure location of our servers make them impenetrable. Our Offline Storage solution thus ensures our clients’ Bitcoin is safe from online threats.

Once a client decides to store their Bitcoin in our Offline Storage solution, they simply and securely deposit their Bitcoin via the Numbrs web dashboard.

Where is the data center located?

Numbrs’ Offline Storage solution stores its clients’ Bitcoin offline in a state-of-the art, highly-secure data center in Switzerland. Our servers, which are never connected to the internet, are located in the high-security data center of an “ISO 27001”-certified colocation partner in the region of Zug in Switzerland.

What are the terms?

Setup Fee (one-time) CHF 2,500 (one-time)
Service Fee The Service Fee is an annual fee calculated as a percentage of the USD-denominated average annual balance of the client’s assets in the Numbrs Cold Storage Solutions. The Service Fee is 0.5% or 50 basis points per year with a minimum yearly service fee of CHF 5,000
Payment Method Payment is always triggered by the client and is not automatically deducted by the company.
Date of Payment The setup fee and minimum service fee are due seven days after registration.
Currency The only accepted currency is Bitcoin. Payments can be made in the Numbrs web client
Notice period The customer relationship can be terminated on an annual basis
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