The climate-neutral economy is today, more than ever, the priority issue for all governmental and non-governmental bodies, directly and indirectly involved in the ambitious and responsible process of society’s transition to the green economy. To be or not to be sustainable today is no longer an option, but an urgent necessity. Based on these considerations, our research aims to add to the knowledge on the digital performance of the Member States in the context of the transition to a climate neutral economy, by analyzing the mutations that have occurred in the digital performance of the EU countries in the period 2015–2020, as well as forecasting developments for the year 2025. In order to obtain a relevant result, we used the components of the DESI index, published by the European Commission, and the variables were processed through hierarchical cluster analysis. The results demonstrate that, around the core formed in 2015 by four high digitally performing countries from the North of Europe in 2015, other countries have gradually clustered, so that in 2025 we estimate that a number of eight Member States will be part of the group of the most digitally performing countries. These countries are decisively committed to the transition towards a climate-neutral economy, their initiatives and examples of good practice can be taken up by all European and non-European countries pursuing the same objectives of sustainable development.