Purchase and sale as well as construction and management of real estate; participation in real estate projects; support and consulting of companies, in particular execution of real estate trust transactions of all kinds; provision of services in the areas of construction trusteeship, owner consulting and representation as well as project accompaniment and project controlling; execution of general planning and general contractor mandates; trade with as well as import and export of goods of all kinds, in particular cars, furniture, figures and art objects; provision of services, in particular in the areas of trust, asset management, brokerage and sale of financial products; holdings; acquisition, encumbrance, sale and management of real property; financing and assumption of guarantees and sureties for subsidiaries and third parties.