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Single Family OfficePuts its own capital into companiesLAST VERIFIED Oct 2026 · 2 SOURCES

Warsaw single family office founded by Rafał Brzoska and Omenaa Mensah; manages private and public investments directly and via external managers in consumer, tech, manufacturing and real estate.

USEFUL FOR Fund managers raising capital · Co-investors

Family & background

HEADQUARTERS
Warsaw, Poland
OUTSIDE CAPITAL
No — own capital only

Investment approach

ROUTES
Companies (own capital) · Funds (as LP)
STRATEGIES
Direct investmentsPublic equitiesFunds (as LP)Impact

Overview

RIO ASI describes itself as a single family office in Warsaw that oversees a diversified portfolio of private and public investments, held directly and through external fund managers. Its founders are entrepreneurs Rafał Brzoska and Omenaa Mensah. The legal entity, RiO ASI sp. z o.o., is an internally managed alternative investment company entered in the Polish register of alternative investment company managers. Its stated focus areas are consumer and retail, services and tech, manufacturing and real estate.

Investment thesis

Independent, impact-driven investing that backs talented, ambitious teams to build future champions across consumer and retail, services and tech, manufacturing and real estate.

People

  • Rafał Brzoska
    Founder · source
  • Omenaa Mensah
    Founder · source

Frequently asked questions

RIO ASI is a single family office based in Warsaw, Poland.

RIO ASI invests its own capital into companies and in third-party funds as an LP. Its stated asset mix includes direct investments, public equities, funds (as lp) and impact.

RIO ASI invests in Consumer & E-commerce, Software & SaaS, Industrial & Manufacturing and Real Estate & PropTech.

Key people at RIO ASI include Rafał Brzoska (Founder) and Omenaa Mensah (Founder).

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