Thomas Breitenmoser

BSc in Business Administration, MBA, CFA, CAIA

Head of Investment-Consulting
and Investment-Controlling

Heinz B. Rothacher

BSc in Economics and Business Administration - University of Berne, DAS in Banking - Swiss Finance Institute University of Zurich,
Exec Program - Harvard BS

Chief Executive Officer,
Chairman of the Board &
Owner of Complementa AG

Beat Krieger

Master of Arts UZH, Swiss Certified Public Accountant

Head of Investment-Reporting
and Investment-Accounting

Values Complementa stands for

Complementa is an experienced and reliable partner of institutional investors and Family Offices and supports investors in planning, designing and monitoring investment and financing processes. The objective analyses of our financial experts are relied upon by managers in domestic and international markets in the management of assets and serve to maintain an overview even in turbulent market phases. We illuminate complex asset structures, create transparency and generate a clear and comprehensible organization of all assets for our clients. We have been measuring and assessing performance for soon 40 years.

As an independent, owner-managed enterprise (100% privately owned), Complementa operates free of conflicts of interest. The lasting benefits for our clients are always at the center of our attention. We exclusively represent the interests of our clients, work on the basis of scientific principles and are only remunerated by clients for services rendered.

All our employees sign the ASIP Charter once a year, which is embedded in a comprehensive internal policy framework. Our actions are guided by the highest ethical standards along with social and environmental principles.

One of our corporate values is to assume responsibility towards our employees, customers, suppliers and partners. In our eyes, this is the basis for long-term corporate success. We are careful stewards of the environment and of resources, promote training and continuing education, and work as a team with dedication and integrity to bring solutions for the future.

We support the development of Swiss Pension Funds through memberships and activities in the following associations: Swiss Pension Fund Association (ASIP), Swiss Association of Investment Consultants (SWIC) and Innovation Zweite Säule (IZS). By means of our regular Pension Fund Study, we equally contribute significantly to the long-term stability of the second pillar of the Swiss pension system.

Management Team

Facts & Figures

Incorporation: 1984

Certifications: ISO 9001 & ISAE 3402

Subsidiary: Complementa GmbH Germany, Munich

Studies: Risk Check-up Study for pension funds (annually since 1995) & Family Office Study (periodically since 2009)

Legal structure: Swiss stock corporation (100% privately owned)

Locations: St. Gallen, Zurich & Munich

  • 60 Experts in the service of our clients
  • 160 clients serviced around the globe
  • 280 Billion Assets under Reporting/Controlling


Job Vacancies:
  • We currently do not have job vacancies but look forward to spontaneous applications.

Career questions?

Contact us


We combine our expertise with strong partners to best serve our clients.


Our superior quality is furthermore certified by the standards of ISO 9001:2015 and ISAE 3402 Type II.