---
title: "B-FLEXION: Single-Family Office in Geneva"
description: "B-FLEXION, a single-family office in Geneva, Switzerland. Key facts, people, strategy and news, from public filings, company sites and press."
url: https://vestdoor.com/family-office/b-flexion
updated: 2026-11-11
---

# B-FLEXION

Private investment group managing Bertarelli family capital (single family office).

## Decision makers

| Name | Role |
| --- | --- |
| Ernesto Bertarelli | Chairman |

[Access B-FLEXION decision makers](https://vestdoor.com/app/signup)

## Latest investments

[Access B-FLEXION investments](https://vestdoor.com/app/signup)

## News

- 2019: Took full ownership of Stallergenes Greer
- 2007: Serono sold to Merck KGaA

## Investment strategy

| Focus | Detail |
| --- | --- |
| Approach | Active owner; seeds, acquires and builds asset managers; principal investments in operating businesses |
| Asset classes | PE, VC, infrastructure, technology, real estate, hedge funds, public and private credit, public securities |
| Sectors | Life sciences, healthcare services, digital health |

## Key facts

- **Type:** Single-family office
- **Headquarters:** Geneva, Switzerland
- **Family:** Ernesto Bertarelli (founder and chairman) and family
- **Source of wealth:** Serono (biotech), sold to Merck KGaA in 2007 to form Merck Serono
- **Website:** [bflexion.com](https://www.bflexion.com/)

## Listed in

- [Family offices in Geneva](https://vestdoor.com/family-offices/europe/geneva)

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## Frequently asked questions

### What type of organisation is B-FLEXION?

B-FLEXION is described as: Private investment group managing Bertarelli family capital (single family office).

### Where is B-FLEXION based?

B-FLEXION is headquartered in Geneva, Switzerland.

### Which family is behind B-FLEXION?

Ernesto Bertarelli (founder and chairman) and family. Source of wealth: Serono (biotech), sold to Merck KGaA in 2007 to form Merck Serono.

### Who runs B-FLEXION?

Public roles include Ernesto Bertarelli (Chairman).

### What does B-FLEXION invest in?

PE, VC, infrastructure, technology, real estate, hedge funds, public and private credit, public securities.

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Canonical: https://vestdoor.com/family-office/b-flexion
Markdown twin: https://vestdoor.com/family-office/b-flexion.md