How do i contact plateau support? For technical support, please email [email protected] For FourPoint™ support, please email [email protected] The Plateau Group, Inc.Where can i find the plateau corporate office? Plateau Offices. Corporate Office. The Plateau Group, Inc. 2701 North Main Street. Crossville, TN 38555. P.O. Box 7001.Why choose plateau grp? Plateau has successfully partnered with defense and civilian federal agencies for more than 20 years to provide IT solution consultation, innovation, and thought leadership. Over the past twenty years, Plateau GRP has been proudly serving public sector clients and delivering on multiple US Federal and State Contracts.What is plateau software? Plateau Software is an Information Technology Products and Solutions company focused on Environmental Safety and Occupational Health (ESOH), Energy, Sustainability Performance, Environmental Compliance, Mobility solutions, Hazardous Material Inventory and disposal, Utility Management and Conservation metrics tracking.