SINSI LLC is a reputable network security company headquartered in Edgewood, MD. Established on September 18, 2017, we are committed to delivering remarkable solutions to address your network and data security needs. We have over 18 years of communications/aero experience, combined with our more than 15 years of expertise in the telecommunication networking field (enterprise and LAN levels). We also have more than 5 years of railway control and communication experience.