Welcome

Built on Trust.
Run on Precision.

We are a new fiduciary group for ambitious SMEs, strong partners, and entrepreneurially minded talent.

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Welcome

A fiduciary partner that truly understands your business.

Connected within the group.

We combine classic fiduciary excellence with modern platform power. Across five ambitious hubs in Switzerland, a shared network, the same goal: strategically supporting SMEs – from day-to-day operations to the next growth phase.

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Your market operates differently.

We understand him.

All Industries

Construction & Crafts

Construction Companies
Architects
Engineering Firms
Ancillary Construction Trades

Financial Services

Asset Managers
Health Insurance Companies
Insurance Companies
Financial Advisors
Asset Management Services

Healthcare

Medical Practices
Hospitals/Clinics
Nursing Homes/Home Care
Medical Centers

Hospitality & Tourism

Hotels
Tourism Providers
Event Businesses
Catering
Restaurants

Industry & Production

Logistics
Mechanical Engineering
Chemicals/Pharma
Manufacturing

Public Sector & Non-Profit

Municipalities
Quasi-Governmental Organizations
Foundations
NGOs

Real Estate & Construction Development

Property Management
Project Developers
Brokers
Facility Management
Construction Investors

Services

Consulting Firms
Marketing Agencies
IT Service Providers
Coaching

Technology & Startups

SaaS Companies
HealthTech
AI/Data Startups
Software Service Providers

Trade & E-commerce

Retail
Wholesale
E-commerce
Marketplace Providers

 Partner Hubs

Locally rooted. ‍
Conntected within the group.

Strong, established partners in every region. A single point of contact for everything that matters. The right team for every task.

Finding the Right Partner

Ferax Treuhand AG

Zürich
HUB Zürich
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TRETOR AG

Basel, Liestal
HUB Northwest Switzerland
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Vantikai AG

Basel / Skopje
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Your business in focus.

Not just your numbers.

All Services

Auditing

Clarity where it matters most. Statutory audit, special audits for regulated industries, IT audit, expert opinions and reports.
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Digital, IT, AI

The technological foundation for modern fiduciary services. Digital Backoffice, Cloud, Cybersecurity, and AI. Including Abacus, Microsoft 365, and Data Analytics.
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International

Operating across borders. Audit, Tax, Payroll, and Domiciliation Services.
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Management Consulting

Structures that grow with you. Strategy, financing, succession, and valuations. Right through to mandates and interim management.
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Taxes & Duties

Steuerlogik, die zu Ihrer Situation passt. Steuererklärung, Unternehmenssteuern, MWST und internationales Steuerrecht. Für Unternehmen, Privatpersonen und Expats.
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Trust

The foundation of your business. Reliably managed. Accounting, payroll administration, and payroll - efficiently organized and automatically processed.
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Become a partner

The next generation of fiduciary services.

Starts here.

Grow without sacrificing your independence.
Access to platform, network, and new clients. Shape your work, don't just process it.
Challenging mandates, modern tools, and genuine development.

Discover your career

Managing Partners

Adrian Schaller

Managing Partner / Director
Chartered Accountant
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Josia Röhm

Managing Partner / Director
Chartered Accountant
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Christoph Thommen

Managing Partner
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Part of the Trusso Group

Thinking ahead.

With digital impact.

Vantikai logo company

Our digital transformation arm. Manual processes are a thing of the past – Vantikai automates and digitizes with AI directly within your mandate. This results in intelligent fiduciary services that are proactive and run seamlessly in the background.

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02 Jun 2026

Trusso Launches Business Advisory Services Group

Business advisory and accountancy services for SME – local, connected, digital.

Press
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31 May 2026

Context is the lever

Every week, someone shows up at an SME with an AI tool, promising efficiency. Most of the time, little happens afterward. Not because the AI is bad, but because it doesn't understand the business. Why context – industry, regulations, customer – is the real lever, and what that specifically means for Swiss SMEs.

Expert Article
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01 May 2026

Tax Regulation of the Child Deduction

Parents can claim a child deduction in their tax return – both for direct federal tax and at the cantonal level. Especially in cases of separation, shared custody, or blended families, questions regularly arise regarding the correct allocation. The decisive factor is always who actually bears the maintenance costs.

Expert Article
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01 May 2026

Strengthening the AHV Capital Base: Key Aspects of a Reform

Entrepreneurs who own a stake in their own company can combine salary and dividends in a tax-optimized manner. What is currently legal is increasingly coming under the scrutiny of lawmakers: As part of the next AHV reform, it is being examined whether excessive dividends will in the future be directly subject to AHV contribution obligations – regardless of the salary paid.

Expert Article
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01 May 2026

Abolition of the Imputed Rental Value: Practical Implications for Taxpayers

Following the popular vote on September 28, 2025, it is clear: the imputed rental value will be abolished – starting no earlier than 2028. This system change will eliminate not only the fictitious income but also established deduction options for maintenance costs, mortgage interest, and energy-saving measures. Those who act now can still benefit from the existing regulations.

Expert Article
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01 May 2026

Protection against unwarranted debt collection

In der Schweiz kann eine Betreibung ohne jeglichen Forderungsnachweis eingeleitet werden – mit sofort sichtbaren Folgen im Betreibungsregister. Wer ungerechtfertigt betrieben wird, kann seit 2019 einen Antrag auf Nichtbekanntgabe stellen. Per 1. Januar 2026 wurde diese Schutzmöglichkeit ausgebaut: Die Gesuchsfrist beträgt neu fünf Jahre statt bisher einem.

Expert Article
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12 Mar 2026

Yes to Individual Taxation

On March 8, 2026, Swiss voters approved individual taxation. While this sounds like a fundamental change to the tax system, it will have little short-term impact and is far from being politically settled. We explain what the reform means, who it affects, and why nothing will change for now.

Expert Article
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