EX-21.1 2 jcom20201231ex-211.htm EX-21.1 Document

EXHIBIT 21.1

  List of Subsidiaries of
J2 Global, Inc.

J2 Global, Inc.'s principal affiliates as of December 31, 2020, are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary.



Name State or Other Jurisdiction of Incorporation 
j2 Global Canada, Inc.Canada
J2 Global Denmark A/SDenmark
Ekahau OyFinland
Electric Mail (Ireland) LimitedIreland
j2 Global Holdings Limited  Ireland
j2 Global Ireland LimitedIreland
Ziff Davis Ireland LimitedIreland
j2 Global Japan Y.K.Japan
Serinus42 B.V.Netherlands
NCSG Holding ABSweden
J2 Global Sweden ABSweden
J2 Global UK LimitedUnited Kingdom
Livedrive Internet LimitedUnited Kingdom
RetailMeNot LimitedUnited Kingdom
RetailMeNot UK LtdUnited Kingdom
Ziff Davis International Ltd.United Kingdom
BabyCenter.com, LLCDelaware, United States
DW Prime Holdings Inc.Delaware, United States
Ekahau, Inc.Delaware, United States
Everyday Health, Inc.  Delaware, United States
Everyday Health Media, LLC  Delaware, United States
Humble Bundle, Inc.Delaware, United States
J2 Martech Corp.Delaware, United States
IGN Entertainment, Inc.Delaware, United States
Inspired eLearning, LLCDelaware, United States
J2 Cloud Services, LLCDelaware, United States
J2 Web Services, Inc.Delaware, United States
KeepItSafe, Inc.Delaware, United States
Mashable, Inc.Delaware, United States
Offers.com, LLCDelaware, United States
OnTargetJobs, Inc.Delaware, United States
RetailMeNot, Inc.Delaware, United States
Ziff Davis Performance Marketing, Inc.Delaware, United States
SpiceWorks, Inc.Delaware, United States
ThreatTrack Security Holdings, Inc.Delaware, United States
Ziff Davis, LLCDelaware, United States
ThreatTrack Security, Inc.Florida, United States
Mudhook Marketing, Inc.Florida, United States
NetProtect, Inc.Florida, United States
Prime Education, LLCFlorida, United States
Strong Technology, LLCFlorida, United States
MedPage Today, L.L.C.New Jersey, United States
Excel Micro, LLCPennsylvania, United States
Mosaik Solutions, LLCTennessee, United States
Ookla, LLCWashington, United States