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Multi Family OfficeAllocates capital directlyLAST VERIFIED Oct 2026 · 1 SOURCES

Neuilly-sur-Seine investment company (MARTEK, registered 1987) listed as a multi-family office investing directly in real estate, industrial and climate businesses.

USEFUL FOR Co-investors

Identity

HEADQUARTERS
Neuilly-sur-Seine, France
FOUNDED
1987

Investment approach

ROUTES
Direct investments

Overview

MARTEK is a French company registered in Neuilly-sur-Seine in 1987 according to its GLEIF legal-entity record. The import lists it as a multi-family office founded by Marcel and René Katz that invests directly, with sector interests in real estate, industrial and climate. Its website could not be used as a source because it does not load securely over https.

People

  • Simon Wachsberg
    Investment Director · source
  • Marcel Katz
    Founder · source
  • René Katz
    Founder · source

Classification

Multi Family Office. Provides family-office services to several families and invests or allocates their money — through mandates, its own programmes or club deals. Advice-only firms are not listed. How family capital is classified →

FAQ

Martek is a multi family office based in Neuilly-sur-Seine, France, founded in 1987.

Martek invests directly in companies.

Martek invests in Real Estate & PropTech, Industrial & Manufacturing and Climate & Energy.

Key people at Martek include Marcel Katz (Founder), René Katz (Founder) and Simon Wachsberg (Investment Director).