| # | Name | Location | Applications |
|---|---|---|---|
| 1. | H & H Idrospania Technic, S.L. | 🇪🇸 Burriana, Spain | 2 |
| 2. | H & H INNOVATIONS, LLC | 🇺🇸 Raleigh, NC, United States | 1 |
| 3. | H & H INNOVATIONS, LLC | 🇺🇸 Raleigh, NC, United States | 1 |
| 4. | H & H INVENTIONS & ENTERPRISES, INC. | 🇺🇸 Nelsonville, OH, United States | 2 |
| 5. | HH INTELLITECH APS | 🇩🇰 Farsoe, Denmark | 1 |
| 6. | HHI CORPORATION | 🇺🇸 Ogden, UT, United States | 1 |
| 7. | HHID, LLC | 🇺🇸 Pittsburgh, PA, United States | 1 |
| 8. | HHITT, INC. | 🇺🇸 Aptos, CA, United States | 1 |