Smart Cities in Sofia is a trade fair and conference for urban development in South East Asia. Its focus is on sustainable urban development in the Southeast European region. Visitors are decision-makers from the fields of architecture and construction, power supply, renewable energy, automation, electrical, HVAC, IT and telecommunications, finance and investment, research and development, universities, associations and the media. Visitors will see scalable and intelligent solutions for buildings and the transport and energy sectors for better quality of life and a cleaner environment. Alongside the exhibition, a conference with many interesting lectures will take place. On the whole the organisers welcomed on the 3 days of the fair, from 27. March to 29. March 2018, about 3500 visitors from 15 countries on the Smart Cities in Sofia. The Smart Cities in Sofia took place from Tue., 16.04.2019 to Thur., 18.04.2019 for the 7th time.