The execution of excavation and civil engineering work, as well as transportation. The company may also engage in trade and establish branches and subsidiaries in Germany and abroad, participate in other companies in Germany and abroad, acquire such companies or merge with them, provide financing for its own or third-party account, provide guarantees and bonds for subsidiaries and third parties, acquire, encumber, manage or dispose of real estate and licenses in Germany and abroad, acquire, exploit or dispose of patents, trademarks, design rights, copyrights and other industrial property rights in any form.