EXHIBIT 21.1

JOHNSON CONTROLS INTERNATIONAL PLC

The following is a list of significant subsidiaries of Johnson Controls International plc, as defined by Section 1.02(w) of Regulation S-X, as of September 30, 2021.

Name of Company						Jurisdiction Where Subsidiary is Incorporated
Johnson Controls Fire Protection LP						Delaware, United States
Johnson Controls Security Solutions LLC						Delaware, United States
Johnson Controls, Inc.						Wisconsin, United States