ESB is proud to sponsor the following organizations:

• Water For People
• Water Education Foundation (WEF)
• Professional Environmental Marketing Association (PEMA)
• American Water Works Association (AWWA)
• California Water Environment Association (CWEA)
• Groundwater Resources Association (GRA)
• American Society of Civil Engineers (ASCE)
• YWCA Women of Achievement 
• Cal State San Bernardino Earth Week
• Rotary International
• Groundwater Institute for Teachers (thru Western MWD)
• California Rural Water Association
• Association of California Water Agencies