The HEC-RAS team has working relationships with researchers in the following agencies or organizations.

• U.S. Army Corps of Engineers (USACE)
  
  
  • Engineer Research & Development Center (ERDC)
    
    
    • Cold Regions Research and Engineer Laboratory
      • Remote Sensing & Geographic Information (RS/GIS) Center
        • Ice Engineering Group
          • River Ice Hydraulics Ice Jam Computations
    
    
    • Environmental Laboratory
      • Water Quality Contaminant Modeling Branch
        • Nutrient fate and transport modeling

• Resource Management Associates, Inc. (RMA)
  • Two-dimensional flow software development