Welcome to
INGOLD Treuhandpartner AG

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In good hands

Ingold Treuhand takes care of your finances and your entrepreneurial activities. This includes topics such as bookkeeping, accounting, controlling, auditing, as well as management and administration. We are your sparring partner and take care of your financial essentials.

Gabriela Ingold-Ruesch, Qualified trustee

Key facts

  • INGOLD founded in 1995
  • Since 2002 INGOLD Treuhandspartner AG
  • Part of the CONFIDA Group since October 2022
  • Top team of 10 specialists and support staff
  • In-depth network of tax experts, certified public accountants, lawyers and notaries, insurance experts, and prominent individuals in business, politics, and public administration
  • International clientele, including clients from America, Asia, Europe, Russia, and South Africa
  • Scores of private individuals with diverse fiduciary needs

Trustee companies in a changing world

In 2020, the Zug-based INGOLD Treuhandpartner AG celebrated its 25th anniversary.
On behalf of all employees, I would like to express my sincere thanks to our clients and professional colleagues for the good cooperation and the trust they have placed in us. The motivation remains the same in the future: We want to achieve the best possible result for our clients.

Yours, Gabriela Ingold-Ruesch
& Team

Gabriela IngoldMrs Ingold, how has the market for trustee company services changed in the last years?
The work has become more demanding. The rate of change has continuously accelerated over the last years. We can see international pressure from the EU and the OECD here. In addition, digitization does not stop at our industry.

How are you facing up to these demands?
In the first instance new laws mean an increased work load for us as we systematically review and amend all client mandates. When it comes to digitization, we are on the ball, we have the latest applications and external specialists.

What are today‘s particular challenges?
The new communication technologies have accelerated the pace of day-to-day work to an extreme degree. Rapid communication methods prompt the false assumption that solutions can be achieved just as quickly. But what we want to find is the best, not the fastest, solution for our clients.

You are one of the few women at the head of a trust company. What does it feel like?
After such a long time I now don’t have to prove anything. In fact, I do encounter prejudice from time to time but this has significantly reduced during the long time that INGOLD Treuhandpartner AG has been in business.

What are the particular strengths of INGOLD Treuhandpartner AG?
Firstly, we always keep our delivery promises. The annual financial statements of all major clients are ready by the end of January. Secondly, we provide comprehensive solutions for our clients – as well as offering the standard trust company services in such fields as finance and accounting, auditing, controlling, tax consultancy, company law, inheritance and marriage law, we also provide administrative support and comprehensive consultancy for business owners including all relevant business aspects such as organisational structure and processes, business plan, insurance solutions, succession planning or crisis management. We see our role as being a genuine sparring partner for our clients. This sometimes extends into problems in their private life. We are fully committed to our work.

What do you foresee for the market for trustee services in Zug?
There have been a large number of new entrants into the market in recent years. I think that nowhere in Switzerland there is the same density of trustee companies as Zug.

Should you be afraid of the competition?

No. Most of our clients come to us through recommendations. We are proud that our customer base extends as far as the cantons of Lucerne, Zurich, Aargau and Schwyz.

How do the next years of INGOLD Treuhandpartner AG look?

I and my fantastic team will continue to work with the same commitment as before. We are now integrated onti the CONFIDA Group and thus have even more opportunities to offer our customers the best possible support. We can draw on the economies of scale and broad expertise of Confida. We have expanded our range of services in particular to include real estates services and advice on international structures. Our long-standing employees are a valuable source of support. Reliability, meeting deadlines, stability and sustainability distinguish INGOLD Treuhandpartner AG from others.


We relieve our clients with their accounting, i.e. their bookkeeping and invoicing. We are flexible in the application of various legal, please click for...

Tax Services

Tax advice is a very complex subject. Good advice can help save taxes. We would be happy to complete your tax return or help you to optimize your taxes. For more information click here on more...


As your fiduciary, we advise you on all aspects of corporate law. This includes any kind of legal issues within the scope of corporate law. Please click for more...

Business consultancy

Setting up a business today has to be quick and uncomplicated. Nevertheless, there are some important factors that need to be considered. Please click for more...

Real estate

Selling or buying a property is not an everyday business. It requires an experienced and competent real estate brokerage specialist who can advise you on all aspects of the real estate business and accompany you through all phases. Please click for more...

Our team

Gabriela Ingold

President of the Board of Directors
Managing Director
Swiss certified fiduciary expert
VAT expert FH
Audit expert / Approval RAB

Active in the fiduciary industry since 1984
Direct dial: +41 41 754 48 29


Willi Ruesch

Member of the Board of Directors
Dipl. Expert in Accounting and Controlling
Audit expert / Approval RAB

Active in the fiduciary industry since 1975
Direct dial: +41 41 754 48 48


Beatrice Merz

Authorized signatory
Head of Mandate
Finance and accounting specialist with swiss federal certificate of Proficiency

Active in the fiduciary industry since 1999
Direct dial: +41 41 754 48 84


Viola Rinaldi


Direct dial: +41 41 754 48 17


Irene Di Michelangeli


Direct dial: +41 41 754 48 38


Sabrina Bühlmann-Iten

Authorized signatory
Head of Mandate
Fiduciary with Swiss Federal Certificate of Proficiency

Working in the fiduciary industry since 2009
Direct dial: +41 41 754 48 24


Daniela Schär

Authorized representative
Fiduciary with swiss Federal Certificate of Proficiency

Working in the fiduciary industry since 2005
Direct dial: +41 41 754 48 03


Eva-Maria Nöthiger

Authorized signatory
Mandate manager / tax clerk
lic. iur., RA

Direct dial: +41 41 754 48 25


Fabienne Weber


Direct dial: +41 41 754 48 16


Aritz Gomez


Direct dial: +41 41 754 48 04


Dr. Stefan Bürzle

Mandate manager
Doctorate London, Certified auditor, FAOA audit expert
Direct dial: +41 41 754 48 00


Turhan Sarabat

Mandate manager
Certified auditor, FAOA audit expert
Direct dial: +41 41 754 48 00



Expert Suisse
Treuhand Suisse
Zuger Wirtschaftskammer


Lageplan Ingold Treuhandpartner AG

INGOLD Treuhandpartner AG

Zugerstrasse 40
CH-6314 Unterägeri

Phone 0041 41 754 48 00