The Scottish Cities Alliance’s Smart Cities programme aims to make the centres more attractive to potential investors and residents.
It has now received a total of £60 million.
The latest funding is to be used to improve technology and sustainability in infrastructure such as street lighting, waste and water management and public transport.
Trade minister Ivan McKee said: “The funding will enable the local authorities to strengthen their collaboration and bring even more cutting-edge technologies, like Open Data and Intelligent Street Lighting, to residents across Scotland.
“This £15 million from the European Regional Development Fund for Smart Cities supports the Scottish Government’s aim to remain open, connected and make a positive contribution internationally.”
Alliance chairman and Dundee City Council leader John Alexander said: “Taking seemingly ordinary things such as street lights, bins and public transport and transforming their possibilities through Smart technology means cleaner, safer streets and this Smart technology also boosts the sustainability of our cities.
“Sustainability is increasingly an important factor for investors when they are looking at locations and we are one of the only countries in the world to take all of our cities on the Smart journey together, sharing learning and best practice, which has meant we as a collective have been cited as a model of best practice on numerous occasions.
“This is a huge boost and will improve the quality of life for the people who live in Scotland’s cities.”