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| Name of Subsidiary | | State or Other Jurisdiction of Incorporation or Organization |
| | | |
| FireEye Software (Shanghai) Company Limited | | China |
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| Intrigue, LLC | | Delaware |
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| iSIGHT Partners Europe Holdings B.V. | | Netherlands |
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| iSIGHT Partners Ukraine LLC | | Ukraine |
| | |
| iSIGHT Risk Management Private Limited | | India |
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| iSIGHT Security, LLC | | Delaware |
| | |
| Mandiant, LLC | | Delaware |
| | |
| Mandiant Australia Pty Ltd | | Australia |
| | |
| Mandiant Arabia for Cyber Security | | Kingdom of Saudi Arabia |
| | | |
| Mandiant Canada Limited | | British Columbia |
| | | |
| Mandiant Cybersecurity Mexico S.A. de C.V. | | Mexico |
| | |
| Mandiant Cybersecurity Private Limited | | India |
| | | |
| Mandiant Deutschland GmbH | | Germany |
| | | |
| Mandiant Hong Kong Limited | | Hong Kong |
| | | |
| Mandiant International, LLC | | Delaware |
| | | |
| Mandiant Ireland Limited | | Ireland |
| | | |
| Mandiant Israel Ltd | | Israel |
| | | |
| Mandiant Italy SrL | | Italy |
| | | |
| Mandiant K.K. | | Japan |
| | | |
| Mandiant Korea Limited | | Republic of Korea |
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