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Single Family OfficeAllocates capital directlyLAST VERIFIED Oct 2026 · 5 SOURCES

Nidderau single family office founded 1992 by Johannes Clauss; invests €100k–1M tickets in startups (VC) and Mittelstand firms (PE) in tech, infrastructure, biotech and crafts.

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Family & background

HEADQUARTERS
Nidderau, Germany
FOUNDED
1992
OUTSIDE CAPITAL
No — own capital only

Investment approach

GEOGRAPHY
Germany
ROUTES
Direct investments
STRATEGIES
Venture capitalPrivate equityDirect investments
INBOUND
Accepts submissions

Overview

JC Investments GmbH (HRB 92360, Registergericht Hanau) was founded in 1992 by Johannes Clauss as a family office to manage holdings from his entrepreneurial activities. It describes itself as a single family office that invests in founders through venture capital and in medium-sized companies through private equity, with tickets of €100,000 to €1 million. Its focus areas are technology, infrastructure, biotech, crafts (Handwerk/CraftTech) and medtech; it does not name its holdings, citing confidentiality. It also offers support to entrepreneurs on growth and succession.

Investment thesis

Invests capital, know-how and network in companies with the potential to change markets and achieve sustainable growth; the founder's vision and leadership must convince; acts as smart-money investor without taking operational roles.

People

  • Johannes Clauss
    Founder, CEO and Managing Director · source
  • Nadja Thiemt-Clauss
    Managing Director · source

Classification

Single Family Office. Manages one family's own capital, with no outside investors. The family bears every loss. How family capital is classified →

FAQ

JC Investments is a single family office based in Nidderau, Germany, founded in 1992.

JC Investments invests directly in companies. Its stated asset mix includes venture capital, private equity and direct investments.

JC Investments invests in Software & SaaS, Deep Tech, Biotech & Life Sciences, HealthTech and Industrial & Manufacturing.

JC Investments's stated ticket size is €100K–€1M.

Key people at JC Investments include Johannes Clauss (Founder, CEO and Managing Director) and Nadja Thiemt-Clauss (Managing Director).

JC Investments states that it accepts submissions through its official contact page.

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