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EX-32.1 - EXHIBIT 32.1 - J2 GLOBAL, INC.jcom20191231ex-321.htm
EX-31.2 - EXHIBIT 31.2 - J2 GLOBAL, INC.jcom20191231ex-312.htm
EX-31.1 - EXHIBIT 31.1 - J2 GLOBAL, INC.jcom20191231ex-311.htm
EX-23.1 - EXHIBIT 23.1 - J2 GLOBAL, INC.jcom20191231ex-231.htm
EX-4.5 - EXHIBIT 4.5 - J2 GLOBAL, INC.jcom20191231ex-45.htm
10-K - 10-K - J2 GLOBAL, INC.jcom2019123110-k.htm


EXHIBIT 21.1

  List of Subsidiaries of
J2 Global, Inc.

J2 Global, Inc.'s principal affiliates as of December 31, 2019, 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 Australia Cloud Connect Pty Ltd
 
 
Australia
 
j2 Global Australia Pty Ltd
 
 
Australia
 
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
 
Mashable (Europe) Ltd.
 
 
Scotland
 
J2 Global UK Limited
 
 
United Kingdom
 
Livedrive Internet Limited
 
 
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
 
iContact Marketing Corp.
 
 
Delaware, United States
 
IGN Entertainment, Inc.
 
 
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
 
Salesify, 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
 
Highwinds Capital, Inc.
 
 
Florida, United States
 
Lantern Technology, LLC
 
 
Florida, United States
 
Mudhook Marketing, 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
 
Ookla, LLC
 
 
Washington, United States