# HGDF Familienholding

HGDF Familienholding is a Single Family Office based in Flensburg, Germany.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Flensburg, Germany
- **Region:** Europe
- **Address:** Raiffeisenstraße 13, 24941 Flensburg, Germany
- **Assets under management:** Undisclosed
- **Website:** hgdf.de
- **LinkedIn:** https://www.linkedin.com/company/hgdf-familienholding-ltd

## Regulatory record

- **Reports private funds:** No

## About

HGDF Familienholding was formed to steward Dethleffsen family assets. Andreas Dethleffsen serves as managing director alongside family members Simon Dethleffsen and Dr. Marius Dethleffsen. The firm executes buyout, growth, and startup investments through direct co-investments, SPVs, and private equity mandates. Confirmed focuses include AgriTech & FoodTech, Healthcare Services, Mobility & Transportation, Industrial Tech, Energy Transition & Renewables, and PropTech. Geographic reach covers Europe, Asia, and the Middle East & Central Asia. The Petersen family participates as co-owners of Flensburger Brauerei alongside the Dethleffsen interests. Team size and total deployment remain undisclosed. The firm maintains its headquarters at Raiffeisenstraße 13 in Flensburg and holds additional real assets including Dethleffsen-Hof. It participates in WHU Campus for Family Business and lists Dr. Marius Dethleffsen as a fineXpert member. Dethleffsen e.V. operates as the associated philanthropic vehicle. Ownership stays within the Dethleffsen family branch, with active management by three named family principals and no external succession vehicle disclosed.

## Sectors

- AgriTech & FoodTech
- Healthcare Services
- Mobility & Transportation
- Industrial Tech
- Energy Transition & Renewables
- PropTech

## People

- Andreas Dethleffsen — Managing Director
- Simon Dethleffsen — Managing Director
- Dr. Marius Dethleffsen — Head of M&A

## Questions

### Who runs investment decisions at HGDF Familienholding?

Andreas Dethleffsen serves as managing director. Simon Dethleffsen and Dr. Marius Dethleffsen hold managing director and head of M&A roles respectively.

### How is HGDF Familienholding related to the Dethleffsen family?

The firm manages assets of the Dethleffsen family, whose business activities in Germany date back nine generations.

### Does HGDF Familienholding participate in fund commitments or only direct deals?

The firm uses direct co-investments, SPVs, and private equity mandates.

### What investment stages does HGDF Familienholding target?

Confirmed stages include buyout, growth, and startup.

## Related profiles

- [Hewitt Group](https://altss.com/profile/hewitt-group)
- [HG Paloheimo Oy](https://altss.com/profile/hg-paloheimo-oy)

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Last updated: 2026-06-03T20:00:00.000Z

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