---
title: "Tethys Invest: Single-Family Office in Neuilly-sur-Seine"
description: "Tethys Invest, a single-family office in Neuilly-sur-Seine, France. Key facts, people, strategy and news, from public filings, company sites and press."
url: https://vestdoor.com/family-office/tethys-invest
updated: 2026-11-11
---

# Tethys Invest

Single family office: investment arm of Téthys, holding of the Bettencourt Meyers family (main shareholder of L'Oréal).

## Decision makers

| Name | Role |
| --- | --- |
| Alexandre Benais | Directeur général (CEO) |

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## Latest investments

[Access Tethys Invest investments](https://vestdoor.com/app/signup)

## News

- 9 Nov 2026: Téthys Invest appoints two new senior directors after a string of acquisitions

## Investment strategy

Long-term direct minority and co-control investments in entrepreneurial companies

| Focus | Detail |
| --- | --- |
| Sectors | Healthcare/diagnostics, education, consumer and luxury, software |
| Geographies | France and international |
| Direct vs funds | Direct |

## Key facts

- **Type:** Single-family office
- **Headquarters:** Neuilly-sur-Seine, France
- **Founded:** 2015 (incorporated 15 Dec 2015; renamed Téthys Invest March 2016)
- **Shareholders' equity:** €2.6bn (As of 31 Dec 2025)
- **Family:** Bettencourt Meyers family
- **Source of wealth:** L'Oréal (cosmetics)
- **Status:** Active (RCS Nanterre)
- **LinkedIn:** [Company page](https://au.linkedin.com/company/t%C3%A9thys-invest)

## Listed in

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

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## Frequently asked questions

### What type of organisation is Tethys Invest?

Tethys Invest is described as: Single family office: investment arm of Téthys, holding of the Bettencourt Meyers family (main shareholder of L'Oréal).

### Where is Tethys Invest based?

Tethys Invest is headquartered in Neuilly-sur-Seine, France.

### Which family is behind Tethys Invest?

Bettencourt Meyers family. Source of wealth: L'Oréal (cosmetics).

### When was Tethys Invest founded?

2015 (incorporated 15 Dec 2015; renamed Téthys Invest March 2016).

### How large is Tethys Invest?

€2.6bn (Shareholders' equity), as of 31 Dec 2025.

### Who runs Tethys Invest?

Public roles include Alexandre Benais (Directeur général (CEO)).

### What does Tethys Invest invest in?

Long-term direct minority and co-control investments in entrepreneurial companies.

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