Wealth governed by Swiss
precision

Sirius Capital Partners guides high-net-worth individuals, family offices and institutions toward their financial ambitions — rooted in Swiss prudence, unwavering discretion and multi-generational thinking.

Explore Services About the Firm
$215M
AUM Managed 2024
$200M
WM Mandates 2025
17+
Years Advisory
Our Services

Every mandate, built around your capital

From discretionary portfolio management to complex cross-border structuring — each mandate is tailored precisely to the requirements of each client relationship, with absolute discretion.

Discretionary Asset Management

Full discretionary and advisory portfolio management across public and private markets. Bespoke investment strategies aligned with your risk profile, return objectives and time horizon.


◉ Multi-asset portfolio construction

◉ Equities, FX & commoditie

◉ Risk management & oversight

◉ Transparent performance reporting

Private Wealth Management

End-to-end wealth solutions for HNWIs and family offices through our Swiss banking partnerships — custody, e-banking, multi-currency FX and comprehensive reporting.


◉ Swiss custody & safekeeping

◉ Cross-border tax optimisation

◉ Estate & succession planning

◉ Multi-currency treasury

Business Restructuring

Strategic advisory for businesses undergoing transition or transformation. Tax-optimised structures, management consulting and full corporate restructuring.


◉ Strategic & trade restructuring

◉ Entity formation & liquidation

◉ Tax-optimised structures

◉ Governance frameworks

Trade & Commodity Finance

Confidential matchmaking across global commodity markets — energy, agriculture, minerals and metals — via documentary credits, LCs and guarantees.


◉ Documentary credits & standby LCs

◉ Guarantees & surety bonds

◉ Energy, agriculture & metals

◉ Institutional bank network

Tax & Fiduciary Services

Full-spectrum tax consulting: optimisation, withholding, voluntary disclosure and lump-sum taxation. Fiduciary services spanning succession planning and will execution.


◉ Tax return & optimisation

◉ Lump-sum & withholding tax

◉ Succession planning & wills

◉ Property acquisition advisory

ESG & Sustainability Advisory

Integration of environmental, social and governance factors into finance decisions. Robust frameworks aligned with global standards and institutional reporting requirements.


◉ ESG framework development

◉ Sustainability project assessment

◉ Impact investment structuring

◉ Compliance & reporting

Our Approach

Business model overview

  • 01

    Client Migration

    Seamless transition of operations and assets into the Swiss jurisdiction — from initial assessment to full operational establishment with comprehensive professional support.

  • 02

    Strategic & Trade Restructuring

    Sophisticated reorganisation of existing corporate structures to optimise tax efficiency, governance and asset protection, aligned with Swiss regulatory frameworks.

  • 03

    Asset Transfer

    Secure and compliant movement of wealth across jurisdictions, ensuring continuity and full protection at every stage — coordinated with Swiss banking partners for seamless custody transfer.

  • 04

    Swiss Corporate Structuring

    Establishment of a Swiss-based holding company and all necessary operational entities — designed for optimal governance, tax efficiency and long-term multi-generational stability.

Gold bars stacked
Gold coins
Secure vault
Silver bars
Who We Are

Precision, prudence and a commitment to legacy

Sirius Capital Partners specialises in discretionary asset and wealth management, deeply rooted in the principles of Swiss prudence and precision. We guide high-net-worth individuals, family offices and institutional clients toward their most ambitious financial goals.

We direct clients into Switzerland as a premier safe jurisdiction for wealth structuring, comprehensive asset protection, and sophisticated long-term financial governance frameworks that span generations.

Founded on precision and an absolute commitment to protecting and growing client capital, we navigate complex commercial, financial and real estate assets through bespoke strategies, profound expertise and absolute discretion.

Family Office & Trust

Protecting wealth across generations

In 2025, Sirius Capital Partners established its first Family Office — a significant milestone in our capability to serve multi-generational client needs with a fully integrated approach.

Swiss Family Office Solutions

Bespoke family office frameworks centralising wealth management, investment oversight and multi-generational planning under one unified Swiss structure with dedicated professional support.

Trust & Foundation Frameworks

Sophisticated trust and foundation structures designed for long-term asset protection, succession planning and legacy preservation across generations with maximum flexibility and control.

Governance Architecture

Comprehensive governance frameworks ensuring clear decision-making protocols, family constitution development and professional oversight aligned with your family's values and long-term vision.
Get in Touch

Begin a confidential conversation

  • Phone
    +41 (0) 76 253 86 76
  • Email
    info@siriuscapitalpartnersllc.com
  • Office Address
    Sirius Capital Partners LLC
    Bahnhofstrasse 44, 8001 Zurich, Switzerland
  • Founder & Managing Partner
    Tansu Yüksel
  • All enquiries are treated with the strictest confidence in accordance with Swiss banking privacy standards. For HNWIs, family offices and institutional clients.