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| 79412257 | HYDRO | SURF HARDWARE INTERNATIONAL | 8139867 |
| 87220011 | HYDRO | Managed Digital LLC | 5964348 |
| 79004294 | HYDRO | SURF HARDWARE INTERNATIONAL PTY LIMITED | 3041940 |
| 88415191 | HYDRO | Not for Radio, LLC | — |
| 79389695 | HYDRO | Norsk Hydro ASA | — |
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| 97614731 | HYDRO | INTERNATIONAL FOODSTUFFS CO LLC | — |
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| 98921693 | HYDRO | NOBITEK International Limited | 8156311 |
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| 86157213 | HYDRO | HYDRO BRAND, INC. | 4737497 |
| 86234060 | HYDRO | EDGEWELL PERSONAL CARE BRANDS, LLC | 4617644 |
| 98354017 | HYDRO | SHENZHEN CHASING-INNOVATION TECHNOLOGY CO., LTD. | — |
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| 97002092 | HYDRO | HYDRO BRAND, INC. | 7191829 |
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| 87765229 | HYDRO | Brilliant Shoe Development Company, Inc. | — |
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| 88737753 | HYDRO | SWEETWATER BREWING COMPANY, LLC | — |
| 88254360 | HYDRO | HYDRO BRAND, INC. | — |
| 88330458 | HYDRO | TMGCore, LLC | — |
| 73569062 | HYDRO | NORSK HYDRO ASA | 1507633 |
| 85306505 | HYDRO | SIVANTOS PTE. LTD. | 4098342 |
