About us
ARE Beteiligungen GmbH, based in Hanau in the Rhine-Main region, was founded in 2007 and is owned by of the two managing partners. We acquire local companies that have created a niche for themselves and provide services in the ancillary construction sector. The aim is to increase the value of the investments in the long term while preserving the identity of the acquired companies. Our business activities are divided into the business areas of waste management services, technical building services, security technology and real estate portfolio. In recent years, our group of companies has grown rapidly thanks to the expertise of our dedicated team, and the existing business areas have been successfully developed and expanded.
OUR TEAM
Joachim Foerderer
Dipl.-Betriebsw. (FH)
Chief Executive Officer
Christian Hilsdorf
Dipl.-Betriebsw. (FH)
Managing Director

Petra Fleckenstein
Assistant to the Managing Director

Ralph Rentzsch
Dipl.-Kaufmann
Controlling

Robert Bogner
Betriebswirt (IHK)
Purchasing

Kai Mrosek
Dipl.-Kfm., Tax consultant
Finance and Accounting

Jennifer Noll
Master of Arts (M.A.)
Marketing

Benjamin Köppel
Master of Arts (M.A.)
Human Resources

Max Fusek
Master of Engineering (M.Eng.)
Project Engineer

Laura Steuber
In-house lawyer
Law

Joachim Foerderer
Chief Executive Officer
1964
Born in Nauort, Germany
1984 – 1988
Studied business administration at the University of Applied Sciences in Koblenz, Germany
1988 – 1994
Various management positions in human resources in companies in the chemical industry
1994 – 2001
Head of Human Resources at subsidiaries of Bilfinger SE
2002 – 2013
Chairman of the Executive Board of Bilfinger Water Technologies GmbH and, from 2008 to 2013, member of the Executive Board of the Bilfinger Facility Services GmbH subgroup
2014 – 2016
Executive President of the Water Technologies division of Bilfinger SE and Chairman of the Executive Board (CEO) of Bilfinger Water Technologies GmbH
2016 – 05/2018
Chairman of the Executive Board (CEO) of Aqseptence Group GmbH as well as various shareholder functions within the international group of companies
since 03/2017
Managing Partner of AS Global Management Participation GmbH
since 06/2018
Chief Executive Officer / Managing Partner of ARE Beteiligungen GmbH

Christian Hilsdorf
Managing Director
1983
Born in Weilburg, Germany
2003 – 2007
Studied Business Administration at the University of Applied Sciences Gießen-Friedberg, Germany
2007
Joined the Bilfinger Group as employee in Group Controlling
2008 – 2016
Various management positions in subsidiaries of Bilfinger SE, including commercial branch manager and authorized signatory of Bilfinger HSG Württemberg GmbH and Bilfinger Wolfferts Gebäudetechnik GmbH
since 01/2014
Managing Director of ARE Beteiligungen GmbH
since 03/2016
Managing Director of Systeex Brandschutzsysteme GmbH and its subsidiaries