Purchase and sale of real estate, management and brokerage of real estate as well as provision of real estate services of all kinds, furthermore provision of services in the IT sector as well as trade with and manufacture of computer programs and electronic components. May participate in other companies, acquire, utilize, manage and sell properties, establish subsidiaries and branches at home and abroad, and in addition, carry out all legal transactions that may be necessary to achieve the purpose of the company, in particular also arrange financing for its own account or for the account of third parties, as well as provide guarantees and sureties for subsidiaries and third parties.