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Single Family OfficeAllocates capital directlyActive · deal in last 18 monthsLAST VERIFIED Oct 2026 · 8 SOURCES

Mousse Partners

Also known as Mousse Partners Limited

New York investment office of the Wertheimer family (Chanel owners), founded 1991 by Charles Heilbronn; runs a proprietary global alternatives portfolio via external managers and direct deals.

USEFUL FOR Fund managers raising capital · Founders · Business owners seeking a long-term partner · Co-investors

Mousse Partners is a division of Mousse Investments Limited, the holding entity of the Wertheimer family (owners of Chanel); Journal du Luxe, citing Bloomberg, describes Mousse Investments Ltd as Chanel's holding company that is not involved in the brand's operations. Its website says it is based in New York City.

Family & background

FAMILY
Wertheimer
WEALTH ORIGIN
Chanel (luxury fashion house owned by Alain and Gérard Wertheimer)
HEADQUARTERS
New York, United States
FOUNDED
1991
OUTSIDE CAPITAL
No — own capital only

Investment approach

GEOGRAPHY
Global
STAGES
Series ABuyout
ROUTES
Direct investments · Funds (as LP)
STRATEGIES
Direct investmentsPrivate equityVenture capitalFunds (as LP)

Overview

Mousse Partners, a division of Mousse Investments Limited, oversees a proprietary global portfolio of alternative investments for the Wertheimer family, owners of Chanel. Journal du Luxe reports it was created in 1991 by Charles Heilbronn, half-brother of Alain and Gérard Wertheimer, as the family office of the heirs. The office invests across a broad range of asset classes with a long-term view, partnering with select external investment managers and investing directly alongside management teams, entrepreneurs and other institutional investors; it is based in New York City with investment operations in Beijing and Hong Kong and states it does not accept advisory clients or provide advice to third-party investors. Its direct investments named in company releases and press include Butler Hospitality (2020-2021) and the 2025 take-private of Heidrick & Struggles. In October 2025 it co-led, with Progeny 3 and Abrams Capital, the investor group in a recapitalization valuing Rockefeller Capital Management at more than $6.6 billion.

Holdings & investments (3)

  • Heidrick & StrugglesNOTABLE
    since 2025
  • Rockefeller Capital ManagementNOTABLE
    since 2025 · Co-lead investor in recapitalization
  • Butler Hospitality
    Consumer & E-commerce · since 2020 · Dissolved (ceased operations May 2022)

People

  • Arthur Heilbronn
    Managing Director, Co-Head of Private Equity and Venture Direct Investing · source
  • Charles Heilbronn
    Founder (created Mousse Partners in 1991) · source

Classification

Single Family Office. Manages one family's own capital, with no outside investors. The family bears every loss. How family capital is classified →

FAQ

Mousse Partners is a single family office based in New York, the United States, founded in 1991.

Mousse Partners invests on behalf of the Wertheimer family (Chanel (luxury fashion house owned by Alain and Gérard Wertheimer)).

Mousse Partners invests directly in companies and in third-party funds as an LP. Its stated asset mix includes direct investments, private equity, venture capital and funds (as lp).

Mousse Partners invests at Series A and Buyout stages in Consumer & E-commerce.

Key people at Mousse Partners include Charles Heilbronn (Founder (created Mousse Partners in 1991)) and Arthur Heilbronn (Managing Director, Co-Head of Private Equity and Venture Direct Investing).

Mousse Partners's holdings and investments include Heidrick & Struggles, Rockefeller Capital Management and Butler Hospitality.

The most recent publicly reported investment by Mousse Partners is Heidrick & Struggles (Take-private (strategic co-investor alongside Advent International and Corvex)), announced in Dec 2025.

No. Mousse Partners invests its own capital and does not raise money from outside investors.