Exhibit 21.1
Energy Recovery, Inc.
List of Subsidiaries
| 
 Company Name  | 
 Country/State of Incorporation/Formation  | 
| 
 ERI Energy Recovery Holdings Ireland Limited  | 
 Ireland  | 
| 
 ERI Energy Recovery Ireland Limited  | 
 Ireland  | 
| 
 Energy Recovery Iberia, S.L.  | 
 Spain  | 
| 
 Energy Recovery Canada, Corp.  | 
 Canada  |