SIS Marchés is a French company specializing in managing public procurement (government contracts) and purchases, offering modular software solutions (like the SAP-integrated SIS Marchés platform) and services for public buyers (like the DGA in France) to handle tender processes, legal compliance, and purchasing cycles efficiently, including training and support for their systems. They help organizations navigate complex public market codes and streamline procurement from supplier certification to project management, aiming for optimized and compliant purchasing.