20241231 10-K FY EX 211

EXHIBIT 21.1

SUBSIDIARIES OF THE COMPANY


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

The following is a list of subsidiaries of IBG LLC:


Name		Jurisdiction of Organization
Interactive Brokers LLC(1)		Connecticut, U.S.A.
IBKR Security Services LLC(2)		Connecticut, U.S.A.
IA GP LLC		Delaware, U.S.A.
Interactive Venture Partners GP LLC		Delaware, U.S.A.
Interactive Venture Partners LLC		Delaware, U.S.A.
IB Exchange Corp.		Delaware, U.S.A.
IB Global Investments LLC(3)		Delaware, U.S.A.
ForecastEx LLC(3)		Delaware, U.S.A.
Interactive Brokers Ireland Limited		Ireland
Interactive Brokers (India) Private Limited(3)		India
Interactive Brokers Software Services (India) Private Limited		India
Interactive Brokers Singapore Pte. Ltd		Singapore

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

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

(3)IBG LLC Owns 99.99% and IB Exchange Corp. owns 0.01%

The following is a list of subsidiaries of IB Exchange Corp:


Name		Jurisdiction of Organization
Interactive Brokers Canada Inc.		Canada
Interactive Brokers (U.K.) Limited		United Kingdom
Interactive Brokers Hong Kong Limited		Hong Kong
Interactive Brokers Australia Pty Limited		Australia
Interactive Brokers Securities Japan, Inc.		Japan
IB Business Services (Shanghai) Company Limited		China
IBKR Financial Services AG		Switzerland
Interactive Brokers Hungary Informatikai KFT		Hungary
Interactive Brokers Software Services Estonia OU		Estonia
Interactive Brokers Software Services Rus		Russia
Interactive Brokers Corp.		Delaware, U.S.A.
Covestor, Inc.		Delaware, U.S.A.

The following is a list of subsidiaries of IBKR Financial Services AG:


Name		Jurisdiction of Organization
Global Financial Information Services GmbH		Switzerland

The following is a list of subsidiaries and branches of Interactive Brokers (U.K.) Limited:


Name		Jurisdiction of Organization
Interactive Brokers (U.K.) Nominee Limited		United Kingdom
Interactive Brokers (U.K.) Limited (DIFC Branch)		United Arab Emirates

The following is a list of subsidiaries of Interactive Brokers Australia Pty Limited:


Name		Jurisdiction of Organization
Interactive Brokers Australia Nominees Pty Limited		Australia

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


Name		Jurisdiction of Organization
Covestor Limited		United Kingdom

The following is a list of subsidiaries of Interactive Brokers Ireland Limited


Name		Jurisdiction of Organization
Interactive Brokers Ireland (Nominee) Limited		Ireland

The following is a list of subsidiaries of Interactive Brokers Hungary Informatikai KFT


Name		Jurisdiction of Organization
Interactive Venture Partners Advisory Hungary KFT		Hungary