Sentra is a Bulgarian company active in the field of IT, Telecommunications, Smart Cities and Homes. Sentra offers software and hardware solutions for monitoring and management of processes and infrastructure systems in the field of: * Energy; * Infrastructure and Transport; * IT and Telecommunications; * Smart cities and IoT. Created from experience with many years of experience in various sectors, the company provides its customers with a diversified portfolio of technological solutions for control, monitoring and management. Among the main activities of Sentra, are: * System integration; * Design, supply, installation and maintenance of sensor systems for structural monitoring; * Design and implementation of control and measurement, communication and SCADA systems; * Production of communication and control and measurement equipment; * Software for control and measurement, IoT and SCADA systems; * Supply and maintenance of charging stations for electric vehicles; Supply of elements and construction of IoT networks; * Consulting, SaaS (software as a service) and 24/7 monitoring activities. Sentra has the following certificates: ISO / IEC 20000-1: 2011; ISO / IEC 27001: 2013; ISO 9001: 2015.