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Family HoldingPuts its own capital into companiesLAST VERIFIED Oct 2026 · 6 SOURCES

J.F. Müller & Sohn AG

Hamburg family investment holding (since 1795) investing only its own capital: majority stakes in German and European Mittelstand firms plus minority tech stakes.

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

Family & background

HEADQUARTERS
Hamburg, Germany
FOUNDED
1795
OUTSIDE CAPITAL
No — own capital only

Investment approach

GEOGRAPHY
GermanyEurope
STAGES
GrowthBuyout
ROUTES
Companies (own capital)
STRATEGIES
Direct investmentsPrivate equityVenture capital

Overview

J.F. Müller & Sohn AG (HRB 2346, Amtsgericht Hamburg) is a family-shaped investment holding that traces its origins to the Hamburg timber and commodity trade begun by Friedrich Jacob Müller in 1795. It invests exclusively its own capital, focusing on majority stakes in medium-sized companies in Germany and Europe, and invests in innovative growth fields with smaller stakes through a special opportunities vehicle. Its 'old economy' holdings include Eurokai, Masterflex, Silon and Holzmüller Sachsen; its 'new economy' holdings include KIWI, Wandelbots, Odoscope, fobizz and Yoummday.

Investment thesis

Long-term partnerships with companies that have the potential and will to develop and grow; acts as financial and strategic partner without seeking operational control.

Holdings & investments (12)

  • Education · since 2023
  • Yoummday
    Software & SaaS · since 2022
  • MBI&O
    since 2021
  • Deep Tech · since 2020
  • Industrial & Manufacturing · since 2016
  • Software & SaaS · since 2016
  • Industrial & Manufacturing · since 2015
  • Real Estate & PropTech · since 2015
  • Industrial & Manufacturing · since 2014
  • HealthTech · since 2010
  • Industrial & Manufacturing · since 1992
  • Mobility & Logistics · since 1987

People

  • Raphael Söhngen
    Member of the Management Board and CEO · source
  • Raetke Müller
    Chairman of the Supervisory Board · source
  • Lucia Gihr
    Finance and Operations Manager · source

Frequently asked questions

J.F. Müller & Sohn AG is a family holding based in Hamburg, Germany, founded in 1795.

J.F. Müller & Sohn AG invests its own capital into companies. Its stated asset mix includes direct investments, private equity and venture capital.

J.F. Müller & Sohn AG invests at Growth and Buyout stages in Industrial & Manufacturing, HealthTech, Software & SaaS, Education and Mobility & Logistics.

Key people at J.F. Müller & Sohn AG include Raphael Söhngen (Member of the Management Board and CEO), Raetke Müller (Chairman of the Supervisory Board) and Lucia Gihr (Finance and Operations Manager).

J.F. Müller & Sohn AG's holdings and investments include Emdion, Metechon, Eurokai, Silon, Holzmüller H.-Ges. Sachsen, Masterflex, KIWI.KI and MBI&O, among others.

No. J.F. Müller & Sohn AG invests its own capital and does not raise money from outside investors.