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10-K - 10-K - Interactive Brokers Group, Inc.a2196743z10-k.htm
EX-32.1 - EX-32.1 - Interactive Brokers Group, Inc.a2196743zex-32_1.htm
EX-31.1 - EX-31.1 - Interactive Brokers Group, Inc.a2196743zex-31_1.htm
EX-31.2 - EX-31.2 - Interactive Brokers Group, Inc.a2196743zex-31_2.htm
EX-23.1 - EX-23.1 - Interactive Brokers Group, Inc.a2196743zex-23_1.htm
EX-32.2 - EX-32.2 - Interactive Brokers Group, Inc.a2196743zex-32_2.htm

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EXHIBIT 21.1

SUBSIDIARIES OF THE COMPANY

The following is a list of subsidiaries of IBG, Inc.:

Name
  Jurisdiction of Organization
IBG LLC   Connecticut, U.S.A.

The following is a list of subsidiaries of IBG LLC:

Name
  Jurisdiction of Organization
Timber Hill LLC(1)   Connecticut, U.S.A.
Interactive Brokers LLC(2)   Connecticut, U.S.A.
Interactive Brokers Canada Inc.    Canada
Interactive Brokers (U.K.) Limited   United Kingdom
Timber Hill Europe AG   Switzerland
Timber Hill Securities Hong Kong Limited   Hong Kong
Timber Hill Australia Pty Limited   Australia
Timber Hill Canada Company   Canada
Timber Hill Specialists Corp.    Delaware, U.S.A.
Interactive Brokers Hungary Kft   Hungary
IB Exchange Corp.    Delaware, U.S.A.
Interactive Brokers (India) Private Limited(3)   India
Interactive Brokers Financial Products S.A.    Luxembourg
Interactive Brokers Securities Japan, Inc.    Japan
Interactive Brokers Software Services Estonia   Estonia
Interactive Brokers Software Services Russia   Russia

(1)
IBG LLC owns 99.99% and Thomas Peterffy owns 0.01%.

(2)
IBG LLC owns 99.9% and Thomas Peterffy owns 0.1%.

(3)
IB Exchange Corp. owns 0.01%

The following is a list of subsidiaries of Timber Hill Europe AG:

Name
  Jurisdiction of Organization
Timber Hill (U.K.) Limited   United Kingdom
Timber Hill (Mauritius) Limited   Mauritius

The following is a list of subsidiaries of Interactive Brokers LLC:

Name
  Jurisdiction of Organization
Interactive Brokers Corp.    Connecticut, U.S.A.



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SUBSIDIARIES OF THE COMPANY