EXHIBIT 21.0 SUBSIDIARIES OF FLIR SYSTEMS, INC. - ---------------------------------- . FSI International, Inc., a Barbados Corporation . Hoeger Optical Co., Inc., a California Corporation . FLIR Systems International Ltd., a United Kingdom Corporation . FSI Automation, Inc., a Washington Corporation . FLIR Systems AB, a Swedish Corporation . FLIR Systems Limited., a United Kingdom Corporation . FLIR Systems Ltd., a Canadian Corporation . FLIR Systems Secaucus, a Delaware Corporation