Welcome to Complementa Investment-Controlling AG

We turn big data into smart data

Complementa Investment-Controlling AG is an experienced and reliable partner for institutional and large private investors that supports investors in planning, organising and monitoring the funding process. We analyse complex asset structures and create transparency so that our clients can structure their assets in a well-organised and comprehensible way. Because only a clear and solid structure creates security.

Our services are geared to the needs of our clients and include consolidated performance reporting, accounting, investment consulting and investment controlling. The objective analyses by our financial experts are used by managers from Switzerland and abroad as a co-pilot and navigation aid for managing investments and serve to maintain an overview even in turbulent markets.

Complementa was founded in 1984 as Switzerland's first investment controller and independent performance measurer. Complementa Investment-Controlling AG has been an operationally independent unit of State Street Holdings Germany GmbH since October 2011.

The Complementa Group has 120 employees at five locations in Switzerland and Germany, working to find solutions that surpass our clients’ expectations.