EX-21.1 6 d667782dex211.htm EX-21.1

Exhibit 21.1

SUBSIDIARIES OF QUEST RESOURCE HOLDING CORPORATION

Name |  | State of Organization |  | Parent
Earth911, Inc. |  | Delaware |  | Quest Resource Holding Corporation
Youchange, Inc. |  | Arizona |  | Quest Resource Holding Corporation
Quest Resource Management Group, LLC |  | Delaware |  | Earth911, Inc.
Global Alerts, LLC |  | Delaware |  | Earth911, Inc.
Sustainable Resources Management, LLC |  | Delaware |  | Earth911, Inc.
Clean Up.org, Inc. |  | Delaware |  | Earth911, Inc.
Landfill Diversion Innovations, LLC |  | Delaware |  | Quest Resource Management Group, LLC