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Single Family OfficePuts its own capital into companiesLAST VERIFIED Oct 2026 · 4 SOURCES

Vienna family office (Aventur Family Office GmbH) investing private capital since 2013: majority stakes in DACH SMEs in succession, listed equities and real estate.

USEFUL FOR Business owners seeking a long-term partner · Co-investors

Family & background

HEADQUARTERS
Vienna, Austria
FOUNDED
2013
OUTSIDE CAPITAL
No — own capital only

Investment approach

GEOGRAPHY
AustriaGermanySwitzerland
STAGES
Buyout
ROUTES
Companies (own capital)
STRATEGIES
Direct investmentsPrivate equityPublic equitiesReal estate

Overview

Aventur Family Office GmbH is a Vienna family office that has invested private capital since 2013 with a long-term, next-generation horizon. It takes majority stakes in established small and mid-sized companies in German-speaking countries, especially in succession situations, and acts as an active shareholder. It also invests in listed companies and in real estate, mainly commercial property linked to its companies.

Investment thesis

Majority stakes in profitable, established Mittelstand companies in the German-speaking region with EBITDA of €1M–€8M, especially succession cases, run long term in the founders' spirit with managing directors who co-invest; listed equities with the same approach (good long-term management, sustainable model, sensible valuation); commercial real estate usually tied to portfolio companies.

People

  • Michael Haupt
    Investment Director · source
  • Andreas Rainer
    Managing Director (Geschäftsführer) · source

Frequently asked questions

Aventur is a single family office based in Vienna, Austria, founded in 2013.

Aventur invests its own capital into companies. Its stated asset mix includes direct investments, private equity, public equities and real estate.

Aventur invests at Buyout stage in Real Estate & PropTech.

Key people at Aventur include Andreas Rainer (Managing Director (Geschäftsführer)) and Michael Haupt (Investment Director).

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