EX-21.1 2 jcom20201231ex-211.htm EX-21.1
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/S |  |  | Denmark |
Ekahau Oy |  |  | Finland |
Electric Mail (Ireland) Limited |  |  | Ireland |
j2 Global Holdings Limited |  |  | Ireland |
j2 Global Ireland Limited |  |  | Ireland |
Ziff Davis Ireland Limited |  |  | Ireland |
j2 Global Japan Y.K. |  |  | Japan |
Serinus42 B.V. |  |  | Netherlands |
NCSG Holding AB |  |  | Sweden |
J2 Global Sweden AB |  |  | Sweden |
J2 Global UK Limited |  |  | United Kingdom |
Livedrive Internet Limited |  |  | United Kingdom |
RetailMeNot Limited |  |  | United Kingdom |
RetailMeNot UK Ltd |  |  | United Kingdom |
Ziff Davis International Ltd. |  |  | United Kingdom |
BabyCenter.com, LLC |  |  | Delaware, 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, LLC |  |  | Delaware, United States |
J2 Cloud Services, LLC |  |  | Delaware, United States |
J2 Web Services, Inc. |  |  | Delaware, United States |
KeepItSafe, Inc. |  |  | Delaware, United States |
Mashable, Inc. |  |  | Delaware, United States |
Offers.com, LLC |  |  | Delaware, 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, LLC |  |  | Delaware, United States |
ThreatTrack Security, Inc. |  |  | Florida, United States |
Mudhook Marketing, Inc. |  |  | Florida, United States |
NetProtect, Inc. |  |  | Florida, United States |
Prime Education, LLC |  |  | Florida, United States |
Strong Technology, LLC |  |  | Florida, United States |
MedPage Today, L.L.C. |  |  | New Jersey, United States |
Excel Micro, LLC |  |  | Pennsylvania, United States |
Mosaik Solutions, LLC |  |  | Tennessee, United States |
Ookla, LLC |  |  | Washington, United States |