Space Hellas is one of the biggest System Integrators and ICT solution providers in SE Europe, delivering turn-key solutions for the enterprise, public and defence sectors. The company designs, supplies, implements and supports integrated ICT and security solutions, certified according to ISO 9001:2015 quality standard and ISO/IEC 27001:2013 for its information security management system. It also has hands-on experience in QKD technologies via its engagement in the OPENQKD project, having implemented a proof-of-concept deployment in NIS premises. SPH will undertake the integration of QKD systems with existing infrastructures, also developing bespoke software for monitoring and management. SPH will participate mainly in WP3 and WP4.