# Calibrium

Calibrium is a Single Family Office based in Zurich, Switzerland.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Zurich, Switzerland
- **Region:** Europe
- **Address:** Beethovenstrasse 33, CH-8002 Zürich, Switzerland
- **Founded:** 2006
- **Assets under management:** Undisclosed
- **Website:** clbrm.com
- **LinkedIn:** https://www.linkedin.com/company/calibrium-ag

## Regulatory record

- **Reports private funds:** No

## About

Calibrium was founded in 2006 and rebranded from Aeris Capital AG in 2017. It serves as the dedicated investment office for the family of the late SAP co-founder Klaus Tschira. The firm also maintains a relationship with an unnamed European entrepreneur. Investment activity centers on buyouts, growth equity, distressed debt, and turnaround situations. The firm allocates across private equity, real estate, private credit, and hedge funds. Geographic focus remains Europe. Founding partners Bert van den Bergh and George Rehm hold board roles at Revalesio, a clinical-stage pharmaceutical company. The team includes multiple authorized signatories and executive board members. Stefan Schaffhauser serves as Managing Director and Deputy Head of Private Investments. Calibrium holds full membership in the Swiss Private Equity & Corporate Finance Association.

## Sectors

- Private Equity
- Real Estate
- Private Credit
- Hedge Funds

## People

- Bert van den Bergh — Founding Partner
- George Rehm — Founding Partner
- Kim David Lexner — Executive Board
- Stefan Schaffhauser — Managing Director and Deputy Head of Private Investments

## Questions

### Who runs investment decisions at Calibrium?

Founding partners Bert van den Bergh and George Rehm oversee strategy. Stefan Schaffhauser leads private investments as Managing Director and Deputy Head. Additional executive board members hold signatory authority.

### Does Calibrium participate in fund commitments or only direct deals?

The firm pursues direct investments, co-investments, and special situations. It also maintains allocations to hedge funds and private credit vehicles.

### What investment stages does Calibrium typically target?

Activity spans buyouts, growth equity, distressed debt, and turnaround situations. Real estate forms a separate allocation.

### How is Calibrium related to Revalesio?

Founding partners Bert van den Bergh and George Rehm serve on the leadership team and board of Revalesio, a clinical-stage pharmaceutical company.

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Last updated: 2026-08-10T15:54:10.904Z

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