Exhibit 21.1

List of Subsidiaries of AdTheorent Holding Company, Inc.:

Name	Jurisdiction of Incorporation/Formation
AdTheorent Holding Company, LLC	Delaware
GRNT Merger Sub 2 LLC	Delaware
AdTheorent Intermediate Holding Corporation	Delaware
AdTheorent Intermediate Holding Corporation	Delaware
AdTheorent Acquisition Corporation	Delaware
AdTheorent, Inc.	Delaware
AdTheorent Canada, Inc.	Nova Scotia