| | | | | | | | |
| Name | | Country of Incorporation |
| AirTrack Software Pty. Ltd. | | Australia |
| Atlassian Australia 1 Pty. Ltd. | | Australia |
| Atlassian Australia 2 Pty. Ltd. | | Australia |
| Atlassian Capital Pty. Ltd. | | Australia |
| Atlassian Corporation Pty. Ltd. | | Australia |
| Atlassian Pty. Ltd. | | Australia |
| Lead Green Pty. Ltd. | | Australia |
| Lead Green Trust | | Australia |
| MITT Australia Pty. Ltd. | | Australia |
| MITT Unit Trust | | Australia |
| Atlassian Canada Inc. | | Canada |
| Atlassian France SAS | | France |
| Atlassian Germany GmbH | | Germany |
| Atlassian India LLP | | India |
| Atlassian India LLP Employees' Gratuity Trust Fund | | India |
| Securezapp India Private Limited | | India |
| Atlassian K.K. | | Japan |
| Atlassian B.V. | | Netherlands |
| Atlassian Holdings B.V. | | Netherlands |
| Atlassian New Zealand | | New Zealand |
| Atlassian Philippines, Inc. | | Philippines |
| Atlassian Poland sp z o.o. | | Poland |
| Atlassian Portugal, Unipessoal Lda | | Portugal |
| Atlassian Pte. Ltd. | | Singapore |
| Borneo Data Pte. Ltd. | | Singapore |
| Pridatect S.L | | Spain |
| Atlassian Korea Ltd. | | South Korea |
| Opsgenie Yazılım Anonim Şirketi | | Turkey |
| Atlassian Corporation Limited | | United Kingdom |
| Atlassian (UK) Operations Limited | | United Kingdom |
| Atlassian (Australia) Limited | | United Kingdom, United States of America |
| Atlassian (UK) Limited | | United Kingdom, United States of America |
| Atlassian (UK) Holdings Limited | | United Kingdom, United States of America |
| AgileCraft LLC | | United States of America |
| Atlassian Holdings, Inc. | | United States of America |
| Atlassian Network Services, Inc. | | United States of America |
| Atlassian US, Inc. | | United States of America |
| Atlassian (US) LLC | | United States of America |
| Atlassian Ventures LLC | | United States of America |
| Borneo Data Inc. | | United States of America |
| Dogwood Labs, Inc. | | United States of America |
| Halp, Inc. | | United States of America |
| Loom, Inc. | | United States of America |
| OpsGenie, Inc. | | United States of America |
| Optic Labs Corporation | | United States of America |
| Trello, Inc. | | United States of America |