Filling values with life sustainably

Under a single roof, the Family Office manages the various enterprises and holdings of the Gröner family.

Filling values with life sustainably

Under a single roof, the Family Office manages the various enterprises and holdings of the Gröner family.


The Gröner Family Office has been managing the assets, businesses, and investments of the Gröner family since 2020. As a single-family office, we pay great attention to the combination of profitability, ecological sustainability, and social commitment.

We focus on the portfolio management of our properties, which are divided into residential, commercial and hospitality and are located in Germany, France and Italy.

We are involved in all phases of a property’s life: acquisition and conceptual design, development and control, management, and administration. In addition to the individual exploitation of each property’s potential, conceptual design, in which we focus on sustainability and social added value, is always of essential importance.

Our group includes its own hotel and gastronomy division, which operates hotels, hostels, and serviced flats as well as restaurants and wine bars.

Our family office emphasises the importance of giving something back to society. In order to invest more specifically and actively in the future of the countries where we operate, Christoph Gröner founded the association “Wirtschaft kann Kinder” (WKK) / “Economy for Kids”. The association’s goal is to promote equal opportunities for all children and young people.


United under one roof, the Family Office directs the various ventures and investments of the Gröner family.

Our businesses

Château9 restaurants
A haven for gourmets, where wine connoisseurs of the scene regularly meet gourmets in a cozy atmosphere. Get a taste for it too and book your individual event in the venues of Château9. The interior, selected with attention to detail, combines simple, modern elements with a touch of urban luxury and futuristic touches. Straightforward, open and rich in contrasts, our Château9 restaurants set the stage for its visitors.

GRONERS Hospitality
Whether you are longing for the dynamic flair of a big city, for the mild climate of the Mediterranean or for a vacation on a farm – GRONERS Hospitality has the right destination for every taste! In addition to numerous city accommodations in Germany, recreation resorts and hotspots in nature, on the Baltic Sea coast, the Côte d’Azur in southern France and in the South Tyrolean mountains near Bruneck attract guests. GRONERS Hospitality lives and loves diversity and the mix of hospitality.

Our holdings

FSH Aviation Company
FSH offers VIP business flights from small jets to midsize to group flights in the airliner segment. Whether for individual short-term business trips or the transport of urgent cargo packages – FSH is available 24 hours via hotline.

The allmyhomes combines real estate and technology expertise in an unprecedented way. The proptech company’s vision is to significantly advance the digitalization of the real estate industry. The IT platform enables project developers on a national and international level to market their projects in the best possible way. The holistic solution concept combines branding, content creation, lead generation and sales connection to one software platform.

Wirtschaft kann Kinder e.V.
Working together for equal opportunities!
With Wirtschaft kann Kinder e. V. (WKK), we promote equal opportunities for all children and young people in Germany, regardless of where or how they grow up. We want to give young people with difficult starting perspectives fairer chances for social participation and development.

Our partners

CG Elementum AG
As a subsidiary and internal service provider of the Gröner Group founded in 2020, CG Elementum stands for future-oriented, climate-friendly and resource-saving real estate development. Following the maxim of sustainability, we are on the one hand pushing digital planning and building to create affordable and at the same time individual and high-quality architecture. On the other hand, we preserve values by transforming derelict industrial buildings, often contaminated with harmful substances, into new, healthy living spaces. In particular, our new construction projects are always assessed for the applicability of various green technology practices as part of our ConceptGreen.

CG Property Management
CG Hausverwaltung GmbH is represented at three locations in Germany, in Berlin (headquarters), Leipzig and Karlsruhe and is divided into two departments.
The commercial department is the interface between owners, tenants and utilities. Among other things, it is responsible for communication with all parties involved, operating and heating cost accounting, bookkeeping and cost optimization for the various properties.
The technical property management department is responsible, among other things, for refurbishments, repairs and the monitoring of elevator systems. The janitors are assigned to the technical service, who take care of the well-being of the owners, tenants and that of the building.

CG Real Estate
We, CG Immobilien GmbH, are your professional partner for apartments and commercial properties. With us you will find residential space as property or for rent as well as customized space for your business in many locations throughout Germany.


Josephine Heigel
Managing Director
Gröner Family Office Ltd. and Gröner Gastro & Hotel Holding Ltd.

Josephine Heigel has been Managing Director of the Gröner Family Office Ltd. since 2020. She completed her law studies and her legal traineeship in Leipzig/Germany in 2015 and then worked in a real estate sales company. In November 2017, she joined the Gröner group with a focus on real estate. Since 2018, she has also been managing director of the Gröner Gastro & Hotel Holding Ltd.

Frank Gröner
Managing Director
Gröner Family Office Ltd. und Gröner Gastro & Hotel Holding Ltd.

Frank Gröner is Managing Director of Gröner Family Office Ltd. He has more than 30 years of management experience in engineering and real estate; 10 years of which in the management of CG Gruppe stock company. His core competencies are in the areas of administration, controlling, personnel and business organisation.

Björn Bauer-Birkelbach
Managing Director
Groners Hostels Ltd.

Björn Bauer-Birkelbach has gained experience as a hospitality all-rounder in the areas of Rooms Division and Revenue Management, Sales & Marketing as well as Food & Beverage over the past 26 years. In addition to positions as business and hotel director in various destinations, the hotel business economist is now responsible for the boutique brand GRONERS, which he developed and is constantly expanding within Gröner Gastro & Hotel Holding Ltd. in addition to other accommodation and gastronomy concepts.


Creating the future together.
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