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Single Family OfficePuts its own capital into companiesLAST VERIFIED Oct 2026 · 3 SOURCES

Single family office (4L Vision GmbH) of Karlsruhe IT entrepreneur Ralph Suikat, focused on impact investing; holds stakes such as Veganz and Ecoworks.

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Family & background

FAMILY
Ralph Suikat
WEALTH ORIGIN
Sale in 2016 of his shares in the STP group, which he co-founded in 1993
HEADQUARTERS
Karlsruhe, Germany
FOUNDED
2016
OUTSIDE CAPITAL
No — own capital only

Investment approach

ROUTES
Companies (own capital)
STRATEGIES
ImpactDirect investmentsVenture capital

Overview

4L Vision GmbH is the single family office and holding company of Ralph Suikat, a Karlsruhe entrepreneur who co-founded the STP group in 1993 and sold his shares in 2016. Through it he holds a portfolio of companies chosen for both financial return and positive social and environmental impact, including Veganz AG and Ecoworks GmbH. In 2021 the family office took a majority stake in Bardusch Vermögensmanagement, relaunched as the impact wealth manager and multi family office 4L Capital AG.

Investment thesis

Impact investing: backing companies that pursue strong economic results together with a positive impact on society and the environment.

Holdings & investments (3)

INVESTMENT ARMS & VEHICLES

  • 4L Capital AG
    Impact investment wealth manager with family-office services, majority-owned by 4L Vision

HOLDINGS & INVESTMENTS · MOST RECENT FIRST

  • 4L Capital AG (formerly Bardusch Vermögensmanagement)
    Fintech · since 2021
  • Veganz AG
    Food & Agriculture
  • Ecoworks GmbH
    Climate & Energy

People

  • Ralph Suikat
    Founder and Managing Director (Geschäftsführer), 4L Vision GmbH · source
  • Dr. Johannes Knorz
    CEO · source
  • Alexander Raquet
    Commercial Officer · source

Frequently asked questions

4L Vision is a single family office based in Karlsruhe, Germany, founded in 2016.

4L Vision invests on behalf of the Ralph Suikat family (Sale in 2016 of his shares in the STP group, which he co-founded in 1993).

4L Vision invests its own capital into companies. Its stated asset mix includes impact, direct investments and venture capital.

4L Vision invests in Food & Agriculture, Climate & Energy and Real Estate & PropTech.

Key people at 4L Vision include Ralph Suikat (Founder and Managing Director (Geschäftsführer), 4L Vision GmbH), Dr. Johannes Knorz (CEO) and Alexander Raquet (Commercial Officer).

4L Vision's holdings and investments include Veganz AG, Ecoworks GmbH and 4L Capital AG (formerly Bardusch Vermögensmanagement).

The most recent publicly reported investment by 4L Vision is Bardusch Vermögensmanagement (majority stake; relaunched as 4L Capital AG) (Majority acquisition), announced in Jul 2021.

No. 4L Vision invests its own capital and does not raise money from outside investors.