The following research programs, agencies, and organizations have provided funding for capabilities in the HEC-RAS software.
- U.S. Army Corps of Engineers (USACE)
- Modeling, Mapping & Consequences Production Center (MMC)
- U.S. Army Enginer Districts
- 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