Exhibit 21.1
List of Company Subsidiaries
The following is a list of subsidiaries of the Registrant, omitting subsidiaries which, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary of the Registrant as of December 31, 2025:
| Significant Subsidiaries | Jurisdiction of Incorporation | |
| 9159-9290 Quebec Inc. | Quebec (Canada) | |
| Backbone Hosting Solutions SAU | Argentina | |
| Backbone Mining Solutions LLC | Delaware (USA) | |
| BMS Capital Inc. | Ontario (Canada) | |
| Backbone Hosting Solutions (USA) Inc. | Delaware (USA) | |
| Backbone Hosting Solutions Paraguay SA | Paraguay | |
| Backbone Hosting Solutions Inc. | Canada | |
| Orion Constellation Technologies Inc. | Quebec | |
| D&N Ingeniería S.A. | Paraguay | |
| Bitfarms Paraguay LP | Ontario (Canada) | |
| Backbone Sharon LLC (USA - Delaware) | Delaware (USA) | |
| Stronghold Digital Mining Inc. (USA - Delaware) | Delaware (USA) | |
| Panther Creek Power Operating LLC | Delaware (USA) | |
| Scrubgrass Reclamation Company LP | Delaware (USA) | |
| Stronghold Digital Mining Hashco LLC | Delaware (USA) | |
| Stronghold Digital Mining LLC | Delaware (USA) | |
| Carbon Node East Holdings, LLC | Delaware (USA) | |
| Carbon Node East Development, LLC | Delaware (USA) | |
| Carbon Node East Property, LLC | Delaware (USA) | |
| Grant Node Development, LLC | Delaware (USA) | |
| Grant Node Property, LLC | Delaware (USA) | |
| Mercer Node Development, LLC | Delaware (USA) | |
| Mercer Node Property, LLC | Delaware (USA) | |
| Sharon HPC Energy Inc. | Delaware (USA) |