Your partner for the entire spectrum of services for your company

Mentoring Weissenstein

Because we recognize and exactly understand the real problems and needs of businesses and customers. Because we think and act analytical, structured and solution-orientated. And because we place enormous value on professionalism, transparency, reliability and confidentiality.

We cover the entire spectrum and offer all services from a single source. In addition, we have an excellently developed network of highly qualified specialists, which we can involve if required.

In accordance with your individual needs

Growth financing and capital

Development of valuation reports and business valuations

Business Plan, Research and Due Diligence

Company purchase and sale

Elaborating financing concepts

Financing for company acquisition

Transfer your lifework in
responsible hands

Merger & Acquisitions

Anyone who wants to execute internationally successful M & A projects needs a thorough understanding along with bundled, high qualified contacts in the local market. We have a strong network of investors, lawyers, trustees and other specialists.

Company purchase and sale

Management buy-out and buy-in

Purchase and sale of shares

Merger and demerger

Financing for company acquisition

Company and group evaluation

signs of crisis and
take action


Successful turnarounds or restructuring require an early, in-depth analysis of strategy, operational activities and the financial situation of the company. Our specialists from various business disciplines are available to consult with you on efficient crisis management. Our focus is on securing liquidity as well establishing transparency, consensus and the trust of the individual interest groups.
Ensuring liquidity
Restructuring concept
Reorganization of the company structure
Management of the implementation work

When ideas
grow up

Private Equity

Mentoring Weissenstein searches for companies, whose risk/return ratio is favorable, in a target manner. On the one hand, this situation is characterized by the fact that the ideal target company shows high and stable cash flows and, on the other hand, has no major demands regarding its capital requirement for current business activities. In addition to this, the companies should have at their disposal market entry barriers for potential competitors.

Preparation of a strategic plan
Contribution of financial capital
Operational performance improvement
Support during the implementation phase

Plan your dreams realistic
with us

Stefan Gerber

Stefan Gerber

Chairman of the Board

Stefan Gerber, Dipl. Accountant, Head Markets BDO AG, formerly a partner at PricewaterhouseCoopers and investment manager at a private equity firm. He has a long experience in testing and counseling of internationally oriented KMU.

Fidelis M. Goetz

Fidelis M. Goetz


Fidelis M. Goetz, lic.rer.publ. HSG was a member of the Executive Board of Bank Sarasin with responsibility for the Bank's International Division. Prior to that, he worked for Credit Suisse in Asia for over 12 years in the areas of investment banking, asset management and private banking. He is an independent board member in various companies and a member of the boards of trustees of charitable and cultural foundations.

Nadine Schulz

Nadine Schulz


Nadine Schulz is a directress responsible for the administration.

Diego Barberi

Diego Barberi

Sr. Relationship Manager

Diego Barberi has a broad knowledge of business management and structuring. He is responsible for our customers in Switzerland and is responsible for supporting existing and new clients for the acquisition.

Roberto Materazzi

Roberto Materazzi

Relationship Manager

Roberto Materazzi serves private and institutional clients from the Italian-speaking Switzerland and Italy. He is responsible for the care, as well as for the acquisition of new customers.

We accompany you form the start to the goal and beyond

Some of our references