Ubiquitous e-service is one of the most recent links in the chain of evolution that has characterized the different eras of the internetworking environment. The ubiquitous proximity e-service highlights the collective effort focused on collecting the user group’s power as the reference for ubiquitous trust decisions. In this paper, we define the ubiquitous proximity e-service and discuss the significance of ubiquitous proximity e-service. Simulation outcomes for trust decision quality enhancement show significant improvement in all kinds of environment settings. The ubiquitous proximity e-service makes it possible for users to collaborate with the nearby user groups for establishing a reliable and trustworthy interaction environment. It also facilitates and empowers the potential benefits of various ubiquitous e-service applications.