# Koehler Group

Koehler Group is a Single Family Office based in Stuttgart, Germany.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Stuttgart, Germany
- **Region:** Europe
- **Address:** Marktplatz 5, 70173 Stuttgart, Germany
- **Founded:** 2017
- **Assets under management:** Undisclosed
- **Website:** koehlerservices.com
- **LinkedIn:** https://www.linkedin.com/company/koehler-group/

## Regulatory record

- **Reports private funds:** No

## About

Koehler Group was founded in 2017 by René Marius Köhler following his exit from Internetstores, the bicycle and outdoor e-commerce company he built and sold to an investor consortium that included EQT. The single-family office is headquartered in Stuttgart, where it manages the Köhler family wealth with the posture of a permanent-capital investor — no external LP constraints, no fixed fund lifecycle. Allocation spans global technology equities, direct venture and growth-stage startup investments, fund commitments, and a substantial German real estate portfolio. On the venture side, Koehler Group operates through direct co-investments and fund-of-funds structures, with a stage appetite covering seed to late-stage companies. Its startup exposure is broad — 19 sector tags ranging from industrial tech and mobility to digital health and gaming — with a geographic footprint that extends across Europe, North America, Asia, and the Middle East. Confirmed co-investment relationships include Picus Capital, where Köhler sits on the board of the Picus Co-Investment & Growth Fund, and JetApp, the private aviation startup he co-founded with Philipp Schlüren. The real estate book is anchored by multi-family residential assets across ten DACH-region cities, logistics and office properties in Southern Germany, and commercial buildings in Stuttgart and Heilbronn, including the Kö29 mixed-use property on Königstraße. Köhler runs the office alongside a compact team that includes Director of Investments Alexander Fiess and Stephan Belser, who leads KOEHLER Equities, the group's UCITS fund vehicle for listed technology equities. An operator-investor, Köhler maintains formal advisory relationships with the firms that shaped his exit: he serves as an Industry Advisor to EQT and is a member of Partners Group's Entrepreneurs Circle. He also participates in Die Jungen Unternehmer, the German young entrepreneurs' association. The office carries no disclosed AUM, consistent with its single-family structure. Koehler Group operates as a hybrid: part direct private tech investor, part real asset owner, part public equities manager. The UCITS fund allows the family to take concentrated public-market tech bets alongside the illiquid startup and property commitments — a structure that provides permanent capital flexibility without the diversification mandates that constrain most institutional allocators.

## Sectors

- Industrial Tech
- Data Analytics
- FinTech
- Marketing & Sales
- Media & Entertainment
- PropTech
- InsurTech
- HRTech
- Energy Transition & Renewables
- Mobility & Transportation
- Supply Chain & Logistics
- Digital Health
- Robotics & Automation
- SpaceTech
- AgriTech & FoodTech
- Circular Economy
- Sports & Wellness
- Healthcare Services
- Gaming

## People

- Rene Marius Köhler — Founder and CEO
- Stephan Belser — Key executive, KOEHLER Equities
- Alexander Fiess — Director of Investments

## Questions

### Who runs investment decisions at Koehler Group?

Founder René Marius Köhler sets the strategic direction, supported by Director of Investments Alexander Fiess. Stephan Belser leads KOEHLER Equities, the office's UCITS fund for public technology equities. The team is intentionally lean, operating without the committee layers of an institutional manager.

### How is Koehler Group structured — single family office or multi-family office?

Koehler Group is a single-family office. It was established solely to steward the wealth René Marius Köhler generated from the sale of Internetstores. The office does not manage third-party capital and maintains no external LP relationships beyond co-investment partnerships.

### Does Koehler Group invest directly in startups or only through funds?

The office does both. It makes direct co-investments in venture and growth-stage companies and also allocates to funds. One example of its direct posture is the co-founding of JetApp alongside Philipp Schlüren.

### What does the real estate portfolio look like?

Real estate is a core allocation, concentrated in Germany. The portfolio includes multi-family residential across cities such as Düsseldorf, Freiburg, and Nuremberg, logistics and office properties in Southern Germany, and commercial buildings in central Stuttgart and Heilbronn — among them the Kö29 property on Königstraße.

### Is Koehler Group connected to any institutional investment platforms?

René Marius Köhler holds formal roles with two major platforms. He is an Industry Advisor to EQT and a member of Partners Group's Entrepreneurs Circle. Additionally, he sits on the board of the Picus Co-Investment & Growth Fund.

### Where did the underlying wealth originate?

Wealth was generated by founding and selling Internetstores, a European bicycle and outdoor e-commerce platform. The company was backed early by the Samwer brothers' European Founders Fund and ultimately sold to a consortium including EQT.

### Does the office have a philanthropic structure?

Koehler Group supports Malteser Hilfsdienst e.V., the German charitable organization. Beyond this affiliation, no separate foundation or philanthropic structure has been publicly documented.

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Last updated: 2026-07-06T00:35:17.821Z

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