The following research programs, agencies, and organizations have provided funding for capabilities in the HEC-RAS software.

• U.S. Army Corps of Engineers (USACE)
  
  • Risk Management Center (CEIWR-RMC)
    • Two-dimensional flow software development
    • RAS Mapper development
    • New HEC-RAS Interface
    
    
  • Modeling, Mapping & Consequences Production Center (MMC)
    • RAS Mapper development
    
    
  • USACE Flood and Coastal Research Program
    • General research and development support
    • Sediment Transport
    • Uncertainty Anlaysis
    
    
  • USACE Environmental Research Program
    • Nutrient Fate and Transport
    
    
  • U.S. Army Enginer Districts
    • Los Angeles District
      • Channel design/modification tools
    • New Orleans District
      • Pump Stations
      • Old River Control Structure
      • Pressurized Pipe Flow
      • Geo-Referencing Tools
      • Minor Losses and Contraction and Expansion Losses for Unsteady Flow
    • Portland District
      • Water Temperature Modeling
    • St. Paul District
      • Lock & Dam Gate Operations
      • Pump Station Override Rules
    • Little Rock District
      • Advanced Lateral Structures
    • Sacramento District
      • Sediment Transport

• Federal Highway Administration
  • WSPRO Bridge Hydraulics

• Tampa Bay Water
  • Overflow Gates
  • User Defined Rules for Gate Operations

• South Florida Water Management District
  • Groundwater Interaction wiht Storage Areas
  • Improved Pump Control with Rules