21bitcoin Headquarter

Private Wealth for Bitcoin

For investments of €100,000 and up, we provide personal support for the purchase, sale, custody, and long-term management of your Bitcoin assets—including OTC execution, customized terms, and a dedicated point of contact.

100,000+ people in Europe trust 21bitcoin

Everything you need for a significant Bitcoin portfolio

Professional Investing

Buy or sell larger amounts with personal guidance, individual execution, and attractive OTC rates.
Bitcoin orange sunset in the mountains

Personal Support

You will have a dedicated contact person who is familiar with your setup, your requirements, and your transaction history.
21bitcoin Support

Custody or Self-Custody

Use 21bitcoin's professional custody structure or transfer your Bitcoin to your own wallet. We also provide personal support for questions regarding hardware wallets and self-custody.
Nahaufnahme eines robusten Safe-Türgriffrads aus Metall mit schwarzer Ummantelung.

Reporting, Taxes & Estate Planning

21private helps you build a structured Bitcoin setup and keep relevant information ready for tax advice, reporting, and estate planning.
21bitcoin Wallet Shield Card

Michael Koslowski, Relationship Manager

A contact person who knows your setup

Larger Bitcoin holdings raise questions that cannot be answered by a standard help center article.

That is why at 21private, you have a direct point of contact who understands your requirements and continues to support you even after your first transaction.

“Michael has been looking after us since we moved our coins from another exchange. What convinced us: He never tried to sell us anything, but instead answered questions that our local bank didn't even understand. Six-figure transactions went more smoothly than any securities order we’ve ever placed.”
- T.K., Entrepreneur from Munich, client since 2023

Rates that improve with your volume

The higher your transaction volume, the more attractive your rates become.

21bitcoin
from €10 in Bitcoin
21private
from €100,000 in Bitcoin
Benefits
Buy & sell Bitcoin
Yes
Yes
Professional BTC custody
Yes
Yes
Self-custody
Yes
Yes
Personal account manager
no
Yes
OTC execution
no
Yes
Customized terms
no
Yes
Reporting & tax tools
Yes
Yes
Trading fees
Buy / sell more than €100,000
0.99%
Buy / sell more than €250,000
0.79%
Buy / sell more than €500,000
0.59%
Buy / sell more than €1M
0.49%
Account fees
Account opening & maintenance
€0
Professional BTC custody
€0
Euro deposit
€0
Bitcoin deposit
€0
Euro withdrawal
€1
Bitcoin withdrawal
1,000 sats
(~€0.60)
From €100,000

Bitcoin OTC for large transactions

For larger Bitcoin purchases or sales, execution, liquidity, and price are more important than with a small app order.

With 21private, we coordinate larger Bitcoin purchases and sales with you personally – from preparation and proof of funds to execution and custody.

Michael Koslowski, 21private Relationship Manager

FAQ

What is 21private?

21private is 21bitcoin's personalized service for clients with significant Bitcoin holdings or high transaction volumes. You will receive a dedicated point of contact, customized terms, and personal support for buying, selling, custody, self-custody, and reporting.

What is the minimum investment required to use 21private?

21private is primarily designed for clients who €100,000 or more in Bitcoin and wish to buy or sell, or who already hold significant assets.

21private also offers tailored support for those who frequently conduct large transactions or have specific requirements regarding storage and self-custody.

How do I buy Bitcoin for €100,000 or more?

Start by scheduling a no-obligation consultation with your 21private contact. Together, we will clarify your planned volume, your requirements, and the information needed for the transaction.

Once the necessary checks are complete, we will coordinate the execution, timing, and terms with you personally.

What is a Bitcoin OTC trade?

OTC stands for "Over the Counter" and refers to the customized execution of large Bitcoin transactions.

Instead of simply placing a standard app order, the transaction is personally prepared and processed. This is particularly relevant for larger volumes where liquidity, execution, and price are critical factors.

What are the fees at 21private?

Trading fees decrease as your transaction volume increases:

  • from 100,000: 0.99%
  • from €250,000: 0.79%
  • from €500,000: 0.59%
  • from €1,000,000: 0.49%

There are no additional account, euro deposit, or custody fees. For Bitcoin withdrawals to your own wallet, 21bitcoin charges a flat fee of 1,000 sats.

Can I buy more than €1 million in Bitcoin?

Yes. Transactions over 1 million can also be individually arranged through 21private.

For very large volumes, we will discuss execution, liquidity, required documentation, and the process with you personally.

Why is proof of source of funds required for larger transactions?

As a regulated crypto asset service provider, 21bitcoin is subject to legal due diligence and anti-money laundering obligations.

For larger transactions, additional information or proof of the source of funds may therefore be required. Your 21private contact person will personally guide you through this process and inform you in good time about which documents are needed.

What is the difference between 21bitcoin, 21private and 21business?

21bitcoin is our Bitcoin platform for retail customers to buy, sell, and store Bitcoin.

21private is designed for private clients with larger Bitcoin holdings or transaction volumes, offering personalized support, OTC execution, and customized terms.

21business is intended for companies that want to buy or hold Bitcoin for business purposes or utilize related Bitcoin services.

How secure are my Bitcoin with 21bitcoin?

Your Bitcoin are held using a combination of hot, warm, and primarily cold wallets. Cold wallet custody is provided by BitGo Europe; your Bitcoin remain your economic property, are kept strictly separate from 21bitcoin’s own assets, and are never used for our own purposes—all backed by insurance coverage of up to 250 million USD, subject to the terms of the policy.

What our customers say

"Great app & customer service"

"Personal support and telephone service for larger amounts. I feel very well looked after there. I can highly recommend it."

- Richard G., customer since 2024

21bitcoin Silver Emoji Coin
Person hält ein Smartphone mit der 21bitcoin-App vor einer unscharfen Stadtlandschaft bei Sonnenuntergang.

Your Bitcoin deserve more than just a broker

From your first six-figure transaction to the long-term management of your Bitcoin wealth.

Personal. Regulated. Bitcoin-only.