The scope of the study started in November 2015 during the Certificate of Advanced Studies in Senior Project Management organized by the University of Applied Sciences and Arts of Southern Switzerland (SUPSI) consists in analysing and improving maturity in project management in Swiss companies located in the different linguistic regions in order to give a general overview about their level of maturity. The method is based on the CMMI (Capability Maturity Model Integrated) developed by the SEI (Software Engineering Institute, Carnegie Mellon University) and on the studies made by Darci Prado and Russel Archibald in their “Maturidade em Gerenciamento de Projetos”, and Antonio Bassi in his “Maturità nella gestione progetti”, adapted by a team of certified Project Managers within their study “Modello di maturità per le PMI” to assess the maturity of Switzerland’s SME’s. After having received feedback from companies involved in the surveys, the team made an analysis. From this analysis we obtained surprising and unexpected results, which are shown below. The average of the Swiss maturity in project management with maturity method, resulting from the study was 2.99: in the worst case 1, in the best case 5. Big companies normally spend more resources than small, therefore they got higher ratings divided in business area, the best are found in the sector of instruction, and the worst in manufacturing areas. Dividing the results by Swiss regions it comes out that the centre of Switzerland is on the top of the chart, whereas surprisingly the Swiss economical centre of Zurich is to be found in the last position. When analysing macro areas of project management, the worst was “Define standard Process” with an average of 2.81, the best “Evaluates and acceptances of supplies” with an average score of 3.36. The best single area was: “Enter into the contract” in contraposition to “Determine policies and guidelines for customizing”. The most important step for to increase companies’ maturity will be the courage of the enterprises to dedicate resources and offer training. This study will be the base for the institution of a Swiss Permanent Observatory for evaluating and improving the capability in project management by means of a variety of tools and initiatives. The observatory will follow up this survey every 2 years.