The acquisition, holding and sale of participations, in particular in the field of engineering and architecture as well as construction and civil engineering. The company may establish branches in Switzerland and abroad, participate in other companies in Switzerland and abroad, establish, acquire or merge with similar or related companies, and enter into all transactions and conclude contracts that are suitable to promote the purpose of the company, or that are directly or indirectly related to it. The company may acquire, sell and manage real estate in Switzerland and abroad. It may also provide financing for its own account or for the account of third parties, as well as provide guarantees and sureties for subsidiaries and third parties.