Taurus Group: Switzerland's Digital Asset Infrastructure Provider

Overview of Taurus Group

Taurus Group occupies a position in Switzerland’s digital asset ecosystem that is deliberately invisible to end investors but central to virtually every Swiss bank that offers crypto services to its clients. Founded in Geneva in 2018 by Lamine Brahimi, Jean-Philippe Aumasson, and Sébastien Rittmeyer, Taurus was built on a single institutional insight: the banks that would eventually offer digital asset services to their clients would not build custody and tokenisation infrastructure from scratch. They would buy it from a specialist provider. Taurus elected to be that provider.

This B2B infrastructure model — sometimes called “picks and shovels” in the investment community — has proven prescient. As Swiss cantonal banks, private banks, and international financial institutions have progressively added digital asset capabilities to their service offerings through 2022–2026, Taurus has become the technology backbone for a material portion of that expansion. It is not a retail exchange, not a public trading venue, and not a consumer-facing product. It is institutional infrastructure at banking grade.

Founding and Corporate Structure

Taurus was incorporated in Geneva in 2018 as a Swiss private company, with its principal offices in Geneva and additional technical operations across Switzerland. The founding team brought together expertise across three disciplines essential for banking-grade crypto infrastructure: Brahimi from private banking (Goldman Sachs, Pictet), Aumasson from applied cryptography (one of the foremost MPC researchers in Europe, author of several cryptographic standards), and Rittmeyer from banking technology implementation.

The cryptographic credentials of the founding team are not incidental. Taurus’s PROTECT custody platform is built on MPC technology that Jean-Philippe Aumasson had a direct hand in developing academically before commercialising it at Taurus. This is genuinely rare in the enterprise crypto infrastructure space: most custody technology providers implement MPC protocols developed by others. Taurus effectively co-developed the underlying mathematics and then built the product.

Taurus is regulated by FINMA as an authorised financial intermediary, a designation that permits it to provide financial services to banks as a technology partner while operating under FINMA supervisory oversight. This regulatory status is essential for Swiss banks’ willingness to use Taurus infrastructure — a bank cannot outsource material operations to a non-FINMA-supervised provider under Swiss banking law.

Two Product Lines: PROTECT and EXPLORER

Taurus’s offering is organised around two distinct product lines that address the two fundamental infrastructure needs of a bank entering digital asset services.

PROTECT: Institutional-Grade Custody Infrastructure

PROTECT is Taurus’s custody platform for digital assets. It provides banks and financial institutions with the technology to act as regulated custodians of digital assets on behalf of their clients, without the bank building proprietary key management infrastructure.

The PROTECT platform is built on MPC (multi-party computation) cryptography, which ensures that private keys are never held in complete form by any single party. The signing ceremony — the cryptographic process that authorises a digital asset transaction — is distributed across multiple secure compute environments, with each party holding only a key share. Only when a quorum of key-share holders participate does a valid signature emerge, and even then, no complete private key is ever reconstructed or exposed.

For a cantonal bank deploying PROTECT for its crypto custody clients, the practical effect is that the bank can offer FINMA-standard custody — meeting the requirements of the DLT Act’s Article 242a insolvency protection — without employing a team of MPC cryptographers or maintaining bespoke hardware security module infrastructure. The bank is the regulated custodian; Taurus is the technology provider.

PROTECT also manages the operational workflows that institutional custody requires: transaction approval hierarchies, compliance screening of addresses before transfer, audit trails meeting banking supervision standards, and integration with existing core banking systems. This last point is critical: a bank cannot operate a siloed crypto custody system that does not communicate with its general ledger, client reporting infrastructure, and risk management systems. PROTECT’s core banking integrations — including connections to TEMENOS, Avaloq, and other leading Swiss banking platforms — enable seamless accounting and reporting.

EXPLORER: DLT Infrastructure for Tokenisation

If PROTECT addresses the custody question, EXPLORER addresses the issuance question: how does a bank issue digital securities, tokenised bonds, or digital representations of real-world assets on a distributed ledger?

EXPLORER is Taurus’s tokenisation and DLT infrastructure platform. It enables banks and corporates to:

• Issue ledger-based securities (Registerwertrecht under the DLT Act) on the Taurus proprietary DLT network or on public blockchains
• Manage the full lifecycle of tokenised assets: primary issuance, secondary market transfers, corporate actions (coupon payments, maturity redemptions, voting rights)
• Connect to external DLT infrastructure including the SIX Digital Exchange ecosystem

The EXPLORER platform has been used by several Swiss banks to issue digital bonds and structured notes. Arab Bank Switzerland, for instance, has issued tokenised financial instruments on the Taurus EXPLORER infrastructure, creating a bridge between Arab Bank’s traditional private banking client base and the regulatory and technological advantages of digital securities issuance under Swiss law.

Regulatory Status and FINMA Authorisation

Taurus Group’s regulatory status as an authorised financial intermediary under FINMA places it in the category of FINMA-supervised entities that can provide financial infrastructure services to Swiss banks. This is essential for two reasons.

First, Swiss banking law (specifically the Banking Act and FINMA’s outsourcing circular) requires that when a bank outsources material functions — including custody infrastructure — to a third party, that third party must meet supervisory standards. A bank cannot outsource its key management to an entity that FINMA cannot reach. Taurus’s FINMA authorisation satisfies this requirement directly.

Second, the DLT Act’s insolvency protection for digital assets applies to assets held via FINMA-supervised entities and their FINMA-compliant technology providers. Banks using PROTECT can represent to their clients that the custody arrangement meets DLT Act standards, a representation that requires FINMA-compliant infrastructure throughout the chain.

Institutional Investors: SIX Group and Bank Shareholders

In 2024, SIX Group — the operator of SIX Swiss Exchange and itself the holder of a significant stake in the Swiss financial market infrastructure — acquired a significant minority stake in Taurus. This investment is strategically significant on multiple dimensions.

For Taurus, the SIX investment provides a shareholder with the deepest institutional relationships in Swiss banking — every Swiss bank is a SIX shareholder and uses SIX infrastructure for traditional securities settlement. SIX’s endorsement of Taurus as a digital asset infrastructure provider carries credibility that no amount of venture capital investment could replicate.

For SIX, the Taurus stake represents a strategic positioning for the convergence of traditional and digital securities infrastructure. SIX’s own digital asset ambitions — including SIX Digital Exchange (SDX) and its digital securities initiatives — benefit from alignment with Taurus’s bank-facing infrastructure. A future state where tokenised securities issued on EXPLORER are settled on SDX, with custody managed through PROTECT, and reported through SIX’s market data and reporting infrastructure, represents a fully integrated Swiss digital securities market.

Other institutional investors in Taurus include Credit Suisse (prior to its UBS acquisition), Arab Bank, and several family offices with deep connections to Swiss private banking. The shareholder base reflects Taurus’s positioning as an institutional-grade enterprise rather than a venture-backed consumer product.

Bank Clients: The Taurus Ecosystem

Taurus has deployed its infrastructure across a growing list of Swiss and international financial institutions. The publicly disclosed client base includes:

Arab Bank Switzerland: Has used Taurus for both custody infrastructure and tokenised securities issuance, becoming one of the early private banks to offer comprehensive digital asset services to its Middle Eastern-focused private banking clientele.

CACEIS: The Crédit Agricole and Santander-owned fund administration and custody group has integrated Taurus infrastructure for its digital asset custody services, extending Taurus’s reach into institutional fund administration.

Crédit Mutuel: The French mutual banking group has deployed Taurus infrastructure for its French institutional clients seeking digital asset custody capabilities.

Swiss cantonal banks: Multiple Swiss cantonal banks — the state-owned regional banks that serve as retail and corporate banking providers for each Swiss canton — have deployed or piloted Taurus infrastructure for digital asset services, though not all have made public announcements.

PostFinance: Switzerland’s postal bank — with approximately 2.5 million client relationships — launched Bitcoin and Ether custody services in 2023 using Taurus PROTECT as the technical backbone, representing the largest single deployment in terms of potential client reach.

Taurus vs Metaco vs Fireblocks

Three B2B custody infrastructure providers dominate the institutional digital asset banking infrastructure market: Taurus, Metaco (now Ripple), and Fireblocks. Each has a distinct positioning.

Metaco (Ripple): Acquired by Ripple for $250 million in 2023, Metaco’s Harmonize platform is deployed by some of the world’s largest banks including Standard Chartered, BBVA, and DBS. Metaco has the strongest Tier 1 bank client penetration of any custody infrastructure provider. Its Swiss origins (founded Lausanne 2015) provide cultural alignment with Swiss banking, but the Ripple acquisition has introduced uncertainty about product roadmap independence. Metaco’s strength is scale; its challenge is maintaining bank-client trust under a crypto-native parent that competes with some of those banks’ clients.

Fireblocks: The US-headquartered custody infrastructure platform has the largest global client base by number of institutional accounts, with particular strength among crypto-native firms, digital asset exchanges, and US financial institutions. Fireblocks’ MPC technology is technically strong, but it operates under a less stringent regulatory framework than Swiss-supervised Taurus — a limitation for FINMA-supervised Swiss banks with strict outsourcing requirements.

Taurus: The Swiss positioning — FINMA authorisation, SIX Group backing, DLT Act alignment, and deep integration with Swiss banking infrastructure — makes Taurus the natural choice for Swiss financial institutions and the most credible European alternative for non-Swiss European banks seeking FINMA-quality infrastructure.

MPC Custody Technology and Security Architecture

Taurus’s MPC implementation is based on threshold signature scheme (TSS) protocols, specifically the Lindell-Nof protocol for ECDSA (used for Bitcoin and Ethereum) and adaptations for other signature schemes. The technical characteristics of Taurus’s MPC implementation include:

Key ceremony: Private key shares are generated in a distributed manner during onboarding; no complete private key ever exists at any point. The bank client and Taurus each hold key shares as part of the signing quorum.

Geographic distribution: Key shares are maintained in geographically distributed secure compute environments, providing resilience against single data centre failure.

Approval workflows: Transaction approvals are managed through configurable multi-level workflows that integrate with the bank’s existing authorisation hierarchy — ensuring that a large transaction requires senior approval in the bank’s internal system before Taurus’s infrastructure processes the signing request.

Blockchain support: PROTECT supports all major UTXO and account-based blockchains including Bitcoin, Ethereum, Polygon, Avalanche, Solana, and several Layer 2 networks, with ongoing additions driven by client demand.

Geographic Expansion: MEA and Europe

Taurus has prioritised geographic expansion beyond Switzerland across two primary markets: the Middle East and Africa (MEA) and continental Europe.

The MEA expansion is driven by the Gulf’s aggressive digital asset ambitions — DIFC (Dubai), ADGM (Abu Dhabi), and Bahrain’s Financial Harbour have all established regulatory frameworks for digital asset services. Arab Bank’s relationship with Taurus provides a natural bridge to the Arab banking network that spans the region. Taurus has established relationships with several Middle Eastern financial institutions seeking Swiss-quality custody infrastructure with appropriate Islamic finance structuring options.

The European expansion is driven by MiCA-compliant banking institutions seeking digital asset capabilities that meet both FINMA standards (for any Swiss operations) and MiCA standards (for EU operations). Taurus’s infrastructure is designed to support both regulatory frameworks simultaneously, making it a natural choice for Swiss banks with EU-subsidiary operations.

Outlook

Taurus is positioned at the convergence of several structural trends that will define institutional digital asset markets over the next five years: tokenisation of real-world assets (where EXPLORER is directly relevant), expansion of Swiss banking-grade crypto custody (where PROTECT is the enabling technology), and the post-MiCA restructuring of European digital asset banking (where FINMA-supervised infrastructure with cross-border capability is essential).

The SIX Group investment has reinforced Taurus’s position as Switzerland’s primary digital asset banking infrastructure provider and strengthened its credibility for the international expansion that follows. Whether Taurus remains independent or becomes part of SIX’s integrated digital market infrastructure in a deeper corporate transaction is the most significant strategic question for the Swiss digital asset infrastructure market in the years ahead.

Related reading: Swiss Crypto Custody Tracker | SDX Digital Exchange Profile | Sygnum Exchange Profile

Donovan Vanderbilt is a contributing editor at ZUG TRADING. This article is informational and does not constitute investment or trading advice.