Although Open Source software is freely available to everyone it doesn't mean that everyone is an expert in this code. Enterprise software built with Open Source components requires experienced developers who know the internal structure of these components and can quickly and efficiently eliminate problems.
EclipseSource has contributed RAP to Eclipse and is still the driving force behind the project. In many customer projects, we developed enterprise applications based on RAP. We've helped customers to extend RAP to meet their requirements and have developed custom components. With this experience, EclipseSource can offer you efficient support.