CitiOS blockchain technology holds the key to solving all these challenges hindering countries from achieving the United Nations Sustainable Development Goals. CitiOS’ mission is to help societies solve environmental and energy-related issues while at the same time provide an impartial communication network for everyone in the community. The integration of Internet of Things (IoT) with blockchain technology seems to be the only solution to solving most of these challenges. CitiOS blockchain technology, in particular, shows great prospects in helping to solve some of these issues and actually help developing countries achieve most of the UN Sustainable Development Goals. If adopted, it could help in a number of issues especially those touching on environment, energy, and urbanization. CitiOS will lead the next technology development and will enable the ecosystem to always adopt the latest technology.