Accenta is a start-up that offers an innovative solution for the storage of solar energy harnessed by buildings, by combining artificial intelligence and machine learning with seasonal thermal energy storage, in order to heat and cool the building. Effipower is developing low-consumption industrial fans that can reduce power consumption by 15 to 40%. Air-Serenity has patented a technology to purify indoor air using magnetic sponges and cold plasmas. The start-up, iFollow, has developed an autonomous motorized shopping cart that can drive itself and follow shoppers, intended for use both by people with reduced mobility and able-bodied people. SpinalCom develops an intelligent platform to securely process and share data from connected objects in real time. This new technology should be of particular interest to the smart city and smart building sectors.