1996 Founding of GGM as a competence centre for real estate management within the Landesbank Hessen-Thüringen (Helaba)
2002 Reorientation and development of strategy with the aim of serving institutional and also private property investors outside the Group
2006 Percentage of outside client portfolios to almost 70 %
2007 Expansion of the range of services offered to include real estate asset management
2009 Opening of office in Frankfurt/ MesseTurm
2010 Sustainability and certification
2012 Introduction of a new software (iMS)