Sygnum and Debifi Combine Bitcoin Multi-Sig Technology with Regulated Bank Lending Service

  • First bank globally to seamlessly combine Bitcoin-native multi-signature wallets with bank-grade lending services
  • Partnership with Debifi addresses growing institutional demand for self-sovereign Bitcoin lending solutions as traditional finance’s embrace of Bitcoin collateral accelerates
  • New product is latest Bitcoin@Sygnum initiative to advance regulated Bitcoin products, technology integrations and research
  • Announcement made on the first anniversary of Sygnum opening its Lugano office, and on first day of Switzerland’s premier Bitcoin event, the Plan B Forum

Zurich, 24 October, 8:00 AM CET — Sygnum, a global digital asset banking group, announces its partnership with Debifi, a Bitcoin-backed non-custodial lending platform, to develop MultiSYG, an innovative Bitcoin-native multi-signature lending solution. The product, set to launch in H1 2026, is the first multi-signature Bitcoin lending solution from a regulated bank. MultiSYG empowers borrowers to maintain shared control of their collateral through distributed key management rather than via a single custodian. At the same time, they also benefit from the competitive rates, flexible drawdown schedule, loan durations – and white-glove service – of a regulated bank.

MultiSYG enables Sygnum clients to draw fiat loans against their Bitcoin collateral held in a 3-out-of-5 multi-signature escrow wallet. Distributed control requires multiple private keys to authorise transactions, enabling Bitcoin holders to maintain visibility of their collateral on-chain. This is in line with the fundamental principle of “not your keys, not your coins” that resonates strongly within the Bitcoin community.

“A Bitcoin loan should not require blind trust in a custodian,” says Max Kei, CEO and Founder of Debifi. “MultiSYG’s 3-out-of-5 key structure means borrowers can verify their collateral on-chain, while continuing to benefit from Sygnum’s banking relationship and service. After facilitating millions in non-custodial loans, we know this is what the market has been waiting for.”

“With MultiSYG, we are bringing Bitcoin-native technology to regulated bank lending” says Pascal Eberle, Bitcoin@Sygnum and MultiSYG initiative lead at Sygnum Bank. “Borrowers can benefit from bank-grade terms in pricing, drawdown flexibility, and loan duration, while keeping cryptographic proof of their holdings and partial control of their Bitcoin via multi-signature technology. MultiSYG combines the best of both worlds — the ability to hold your own keys while accessing regulated banking products and white-glove service.”

While other banks require full custody for Bitcoin-backed loans, MultiSYG’s distributed key management means clients retain verifiable control of their collateral throughout the loan term – a growing demand from Bitcoin investors. MultiSYG provides a cryptographic guarantee that assets are not rehypothecated, a practice common at traditional banks and other lending services providers.

This positions Sygnum as the only regulated bank globally offering Bitcoin lending that aligns with the self-sovereignty principles driving institutional Bitcoin adoption. This is a critical differentiator as more companies add Bitcoin to their balance sheets. MultiSYG will complement Sygnum’s existing Credit & Lending portfolio and will be available to all Sygnum Bank customers, irrespective of the client’s jurisdiction, upon launch in H1 2026.

About Sygnum
Sygnum is a global digital asset banking group, founded on Swiss and Singapore heritage. We empower professional and institutional investors, banks, corporates and DLT foundations to invest in digital assets with complete trust. Our team enables this through our institutional-grade security, expert personal service and portfolio of regulated digital asset banking, asset management, tokenization and B2B services.

In Switzerland, Sygnum holds a banking license and has CMS and Major Payment Institution licences in Singapore. The group is also regulated in the established global financial hubs of Abu Dhabi and Luxembourg and is registered in Liechtenstein.

We believe that the future has heritage. Our crypto-native team of banking, investment and digital asset technology professionals are building a trusted gateway between the traditional and digital asset economies that we call Future Finance. To learn more about how Sygnum’s mission and values are shaping this digital asset ecosystem, please visit sygnum.com and follow us on LinkedIn and X.

Media Contact:
Dominic Castley, Chief Marketing Officer
[email protected]

Sygnum Bank AG,
Uetlibergstrasse 134a,
8045 Zurich, Switzerland

About Debifi 
Debifi is the premier platform for non-custodial Bitcoin-backed lending enabling institutions and individuals to leverage their Bitcoin holdings as collateral while maintaining full control of their keys.

The platform’s multi-signature escrow technology and strict no-rehypothecation policy ensure client assets remain secure and verifiable at all times, with security validated through multiple independent audits.

Debifi’s mission is to accelerate financial freedom through non-custodial, Bitcoin-backed lending solutions that provide institutional-grade liquidity, positioning Bitcoin as the premier collateral asset in global credit markets. For more information, visit debifi.com and follow us on X and LinkedIn.

Media contact:
Sergejs Ponomarjovs, Chief Marketing Officer

[email protected]

Disclaimer: The information in this publication pertaining to Sygnum Bank AG (“Sygnum”) is for general information purposes only, as per date of publication, and should not be considered exhaustive. This publication does not consider the financial situation of any natural or legal person, nor does it provide any tax, legal or investment advice. This publication does not constitute any advice or recommendation, an offer or invitation by or on behalf of Sygnum to purchase or sell any assets. No elements of precontractual or contractual relationship are intended. While the information is believed to be from accurate and reliable sources, Sygnum makes no representation or warranties, expressed or implied, as to the accuracy of the information. Sygnum expressly disclaims any and all liability that may be based on such information, omissions, or errors thereof. Any statements contained in this publication attributed to a third party represent Sygnum‘s interpretation of the data, information and/or opinions provided by that third party either publicly or through a subscription service, and such use and interpretation have not been reviewed by the third party. Sygnum reserves the right to amend or replace the information, in part or entirely, at any time, and without any obligation to notify the recipient of such amendment / replacement or to provide the recipient with access to the information. Simultaneously, there is no obligation of Sygnum to inform recipients of information, if before provided information later becomes outdated, inaccurate or obsolete, unless otherwise provided by applicable law. The information provided is not intended for use by or distributed to any individual or legal entity in any jurisdiction or country where such distribution, publication or use would be contrary to the law or regulatory provisions or in which Sygnum does not hold the necessary registration, approval authorisation or license. Except as otherwise provided by Sygnum, it is not allowed to modify, copy, distribute or reproduce, display, license, or otherwise use any content for commercial purposes.

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The information in this publication pertaining to Sygnum Bank AG (“Sygnum”) is for general information purposes only, as per date of publication, and should not be considered exhaustive. This publication does not consider the financial situation of any natural or legal person, nor does it provide any tax, legal or investment advice. This publication does not constitute any advice or recommendation, an offer or invitation by or on behalf of Sygnum to purchase or sell any assets. No elements of precontractual or contractual relationship are intended. While the information is believed to be from accurate and reliable sources, Sygnum makes no representation or warranties, expressed or implied, as to the accuracy of the information. Sygnum expressly disclaims any and all liability that may be based on such information, omissions, or errors thereof. Any statements contained in this publication attributed to a third party represent Sygnum‘s interpretation of the data, information and/or opinions provided by that third party either publicly or through a subscription service, and such use and interpretation have not been reviewed by the third party. Sygnum reserves the right to amend or replace the information, in part or entirely, at any time, and without any obligation to notify the recipient of such amendment / replacement or to provide the recipient with access to the information. Simultaneously, there is no obligation of Sygnum to inform recipients of information, if before provided information later becomes outdated, inaccurate or obsolete, unless otherwise provided by applicable law. The information provided is not intended for use by or distributed to any individual or legal entity in any jurisdiction or country where such distribution, publication or use would be contrary to the law or regulatory provisions or in which Sygnum does not hold the necessary registration, approval authorization or license. Except as otherwise provided by Sygnum, it is not allowed to modify, copy, distribute or reproduce, display, license, or otherwise use any content for commercial purposes.

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