EXHIBIT 21.1
SUBSIDIARIES OF OSI SYSTEMS, INC.
| Blease Medical Holdings Limited | Chesham, United Kingdom | |
| Corrigan Canada, Ltd. | Ontario, Canada | |
| CXR Limited | Surrey, United Kingdom | |
| Dolphin Medical, Inc. | Hawthorne, California | |
| Dolphin Medical Pte Ltd. | Singapore | |
| Ferson Technologies, Inc. | Ocean Springs, Mississippi | |
| Metorex Security Products, Inc. | Ewing, New Jersey | |
| Opto Sensors (Hong Kong) Limited | Hong Kong | |
| Opto Sensors (Malaysia) Sdn. Bhd. | Johor Bahru, Malaysia | |
| Opto Sensors (Shenzhen) Ltd. | Shenzen, China | |
| Opto Sensors (Singapore) Pte. Ltd. | Singapore | |
| OSI Defense Systems, LLC | Orlando, Florida | |
| OSI Electronics, Inc. | Camarillo, California | |
| OSI Electronics Pte. Ltd. | Singapore | |
| OSI Fibercomm, Inc. | Hawthorne, California | |
| OSI Medical (Singapore) Pte. Ltd. | Singapore | |
| OSI Optoelectronics AS | Horten, Norway | |
| OSI Optoelectronics, Inc. | Hawthorne, California | |
| OSI Optoelectronics Limited | Nicosia, Cyprus | |
| OSI Optoelectronics Private Limited | Andhra Pradesh, India | |
| Osteometer MediTech, Inc. | Hawthorne, California | |
| PT OSI Electronics | Batam, Indonesia | |
| Rapiscan Security Products, Inc. | Hawthorne, California | |
| Rapiscan Systems (Cyprus) Limited | Nicosia, Cyprus | |
| Rapiscan Systems Australia Pte. Ltd. | Victoria, Australia | |
| Rapiscan Systems, Inc. | Hawthorne, California | |
| Rapiscan Systems High Energy Inspection Corporation | Sunnyvale, California | |
| Rapiscan Systems Holdings, Inc. | Hawthorne, California | |
| Rapiscan Systems Hong Kong Limited | Hong Kong | |
| Rapiscan Systems Limited | Salfords, United Kingdom | |
| Rapiscan Systems Neutronics and Advanced Technologies Corporation | Santa Clara, California | |
| Rapiscan Systems Oy | Espoo, Finland | |
| Rapiscan Systems Private Limited | Andhra Pradesh, India | |
| Rapiscan Systems Pte. Ltd. | Singapore | |
| Rapiscan Systems Sdn. Bhd. | Johor Bahru, Malaysia | |
| SL Healthcare Limited | Nicosia, Cyprus | |
| Spacelabs Healthcare, Inc. | Issaquah, Washington | |
| Spacelabs Healthcare Solutions Private Limited | Andhra Pradesh, India | |
| Spacelabs Healthcare (Canada) Inc. | Ontario, Canada | |
| Spacelabs Healthcare Finland Oy | Espoo, Finland | |
| Spacelabs Healthcare GmbH | Feucht, Germany | |
| Spacelabs Healthcare, Ltd. | Chesham, United Kingdom | |
| Spacelabs Healthcare Pte. Ltd. | Singapore | |
| Spacelabs Healthcare SAS | Creteil, France | |
| Spacelabs Healthcare Trading (Shanghai) Co., Ltd. | Shanghai, China | |
| Spacelabs Healthcare LLC | Issaquah, Washington | |
| Spacelabs Medical, Inc. | Issaquah, Washington |