SignUp4, LLC is a pioneer and leading provider of strategic meetings management software, technology and services for the enterprise meetings and travel planner marketplace. Founded in 1999, the company has built a strong team of experienced software technology and meetings management experts driven by a single objective – to design, develop and deliver cost-effective meetings management solutions for corporate meeting planners, travel planners and events management agencies. SignUp4 recognizes Green Key certified hotels and meeting space within its meeting facility search function, allowing SignUp4 clients to search and filter for green properties.