| | | | | |
| Name | Incorporation |
| Hydrofarm Investment Corp. | Delaware |
| Hydrofarm Holdings LLC | Delaware |
| Hydrofarm, LLC | California |
| EHH Holdings, LLC | Delaware |
| Eltac XXI S.L. | Spain |
| Sunblaster LLC | Delaware |
| Sunblaster Holdings ULC | Canada |
| Hydrofarm Canada, LLC | Delaware |
| Greenstar Plant Products Inc. | Canada |
| Eddi's Wholesale Garden Supplies Ltd. | Canada |
| Field 16, LLC | Delaware |
| House & Garden Holdings LLC | Delaware |
| Aurora International, LLC | Oregon |
| Aurora Peat Products ULC | Canada |
| Innovative Growers Equipment, Inc. | Illinois |
| Innovative Growers Equipment Canada, Inc. | Canada |
| Manufacturing & Supply Chain Services, Inc. | Delaware |
| Innovative AG Installation, Inc. | Illinois |
| Innovative Racking Systems, Inc. | Illinois |
| Innovative Shipping Solutions, Inc. | Illinois |