The Qt Project has moved to a model of open governance, making it available to everyone interested in development, especially to those who use it regularly such as KDE SC.
"We fully support the work being done with the Qt Project. An openly governed Qt is in the best interests of all Qt developers. The Open Governance structure of the Qt Project empowers developers to influence the direction and the pace of Qt developmen”, said Martin Konold, the co-founder of KDE
Stakeholders in the Qt Project, such as KDE SC, can contribute in accordance to their own needs and concentrate on what's important in their own project.
Qt framework is used by a lot of companies such as Google, HP, Lucasfilm, Panasonic, Phillips, European Space Agency, Walt Disney Animation Studios and many others.