The purpose of this work is to analyze the legal regime of State companies and the possibility of agreeing to arbitration clauses in the acts and contracts they sign. To do so, the legal status of the different State companies is reviewed with the aim of determining whether They have rules that enable arbitration. What it is about is justifying that, when our legislator provides that they are subject to the common legislation applicable to individuals, they can freely agree on the arbitration conventions that our dualistic arbitration system admits.