To achieve this, urban development relies on an ecosystem of intelligent objects and services thanks to new technologies. This management method covers all aspects of a city, starting with public and private infrastructures (buildings, street furniture, home automation), networks (water, gas, electricity, telecoms, waste management), transport (soft mobility, public transport, roads, intelligent cars) and e-services. The smart city market has been growing rapidly for several years. While the rural exodus is accelerating, urbanization is in full swing. According to UN estimates, two out of three people will be living in cities by 2030. The need to reorganize urban spaces is closely linked to the migration, climate and technological challenges of our century. This thematic list identifies the main actors of tomorrow's smart cities. Regularly updated, this list includes about 100 companies with sufficient capitalization and liquidity and solid fundamentals.