Exhibit 21.0

Subsidiaries of FLIR Systems, Inc.

• FLIR Commercial Systems, Inc., a California, USA Corporation

• FLIR Government Systems, Inc., a Delaware, USA Corporation

• FLIR Detection, Inc., a Delaware, USA Corporation

• FLIR Surveillance, Inc., a Delaware, USA Corporation

• FLIR Unmanned Ground Systems Inc., a Delaware, USA Corporation

• FLIR Unmanned Aerial Systems ULC, a Canadian Corporation

• FLIR Integrated Imaging Solutions, a Canadian Corporation

• FSI Holdings CV, a Netherlands Corporation

• FLIR Systems BV, a Netherlands Corporation

• FLIR Systems Holding AB, a Sweden Corporation

• FLIR Systems AB, a Sweden Corporation

• FLIR Systems Trading Belgium BVBA, a Belgium Corporation

• RIHL Ltd., a United Kingdom Corporation

• Raymarine UK Ltd., a United Kingdom Corporation