Gerhard Leonhard Dunstheimer

ECE Group GmbH & Co. KG engages in the development and construction of commercial and industrial centers and properties. It offers general planning and contracting, architecture, construction management, project development and management, marketing and sales, leasing, refurbishment, center management, and master planning. The company was founded by Werner Otto in 1965 and is headquartered in Hamburg, Germany.

IVG Immobilien GmbH is a financial holding company, which engages in the ownership, development, and management of real estate properties. The company was founded in 1916 and is headquartered in Bonn, Germany.

Officefirst Real Estate GmbH engages in the provision of asset management services. It operates through the following regional segments: North, Central, and South. The firm's portfolio includes Baumwall, Christoph-Probst-Weg, Rodingsmarkt, Sonninhof, and Spreespeicher. The company is headquartered in Bonn, Germany.

OFFICEFIRST Immobilen AG engages in the acquisition, management, development, and sale of office properties. The company is headquartered in Bonn, Germany.

Part of BP Alteris 2 LLP, Barwood Homes Holdings Ltd. is a British company that develops and constructs residential properties. The company is based in East Haddon, UK. Barwood Homes Holdings was founded in 2013.