Rüdiger Freiherr von Stengel

DWK AIRE - Ehrenfeld - Oscar 125 GmbH & Co. KG manages land, buildings, and apartments. The private company is based in Monheim am Rhein, Germany. The CEOs are Markus Wiedenmann, Ferdinand Spies, Andreas Stolz. The German company was founded in 2018.

Art-Invest Real Estate Management GmbH & Co. KG provides real estate management services. It invests in office, hotel and retail properties with value-added potential in good locations of major cities. The company was founded by Rüdiger von Stengel in 2010 and is headquartered in Cologne, Germany.

HORUS Development GmbH provides construction services. The company is based in Poecking, Germany. The CEOs are Friedrich Ferdinand Spies, Markus Wiedenmann, Ulrich O. Fischer. The German company was founded in 2012.

mainCubes One GmbH is a German company that provides secure digital services such as IoT, cybersecurity, connectivity, and cloud services to customers and partners worldwide through its secureexchange® digital platform. The company is part of the German construction conglomerate Zech Group and has data centers in Frankfurt and Amsterdam, as well as a network of high-availability data centers in Germany. The company is based in Frankfurt, Germany, and has subsidiaries in Germany. The company's state-of-the-art data centers offer colocation services and secure ecosystems for customers across various industries. The company has partnered with several companies, including CDN77, RTB House, Circle B, Leitzcloud, and Spike Reply. The company was founded in 2012, and the CEOs are Markus Wiedenmann and Oliver Menzel.

101 Cleveland Street JV Company Ltd. is a British real estate company that develops building projects and provides real estate services. The private company is based in London, UK. and has subsidiaries in United Kingdom. The company was founded in 2019.

Founded in 2020, AIRE UK Canada Water PropCo 1 Ltd. is a business support services company. Part of Art-Invest Real Estate Management GmbH & Co. KG, the company is based in London, UK.

AIRE Enggasse Verwaltungs GmbH manages real estate properties. The private company is based in Cologne, Germany. The CEOs of the German company are Arne Hilbert, Ferdinand Spies, Markus Wiedenmann.

AIRE Berlin Ufer Beteiligungs GmbH & Co. KG provides investment services. The private company is based in Cologne, Germany. The CEO of the German company is Markus Wiedenmann.

AIRE Düsseldorf KAP12 Verwaltungs GmbH is a financial services company based in Cologne, Germany. The CEOs of the German company are Markus Wiedenmann, Ferdinand Spies. The private company provides financial services.

Wiedenmann Vermögensverwaltung GmbH is an investment services company based in Cologne, Germany. The German company provides investment services. The CEO of the private company is Markus Wiedenmann.

AIRE Berlin Koppenstraße Verwaltungs GmbH is a private company based in Cologne, Germany. The CEOs of the German company are Markus Wiedenmann, Ferdinand Spies. AIRE Berlin Koppenstraße Verwaltungs GmbH provides business support services.

Eschborn Gate GmbH is a business campus located in Eschborn-Süd, Frankfurt, Germany. The German company provides flexible and customizable office spaces that meet every need and provide maximum options. The campus offers a restaurant, café, and places to shop for daily needs, healthcare practices, and other service providers. The private company aims to develop ideas for today that provide benefits in the future, with well-being, vision, and connectivity as key elements of the overall design. The CEOs of the company are Klaus Kirchberger and Markus Wiedenmann.

AIRE Domstraße Verwaltungs GmbH is a German company that provides real estate buying and selling services. The company is based in Hamburg, Germany. The private company was founded in 2012, and the CEOs are Ferdinand Spies and Markus Wiedenmann.