| DIAMONTEC 2028359 · TMA1185827 · design | Taicang Tec International Trading Co. Ltd. | 12 Vehicles | Registered | 2023 |
| DIAMONDTOUCH 1824873 · TMA997986 | Q.E.P. CO. INC. | 19 Building27 Carpets | Registered | 2018 |
| DIAMONDTEMP 1808806 · TMA1082001 | EPiX Therapeutics, Inc. | 10 Medical | Registered | 2020 |
| DIAMONDDECK 1709938 · TMA953083 | CertainTeed Corporation | 19 Building | Registered | 2016 |
| DIAMANTÉ 1722798 · TMA946513 | GROUPE SEB CANADA INC. | 11 Lighting21 Housewares | Registered | 2016 |
| DIAMONDICE 1614347 · TMA878131 | BEVERLY HILLS JEWELLER MFG LTD | 14 Jewellery | Registered | 2014 |
| DIAMANTE 0850549 · TMA502420 | Owner not shown | 12 Vehicles | Registered | 1998 |
| DIAMONT 0686485 · TMA439383 | BASF CORPORATION | 1 Chemicals2 Paints3 Cosmetics+2 | Registered | 1995 |
| DIAMANTE 1995173 | VICOSTONE JOINT STOCK COMPANY | 19 Building | Pending | 2019 |
| DIAMONDTRACK 2294768 · design | Signature Systems Group, LLC | 12 Vehicles19 Building27 Carpets | Pending | 2023 |
| DIAMONDTRACK 2294767 | Signature Systems Group, LLC | 19 Building | Pending | 2023 |
| DIAMONDBACK 2247647 · TMA1265954 | Owner not listed | 37 Construction42 Science44 Medical | Registered | 2024 |
| DIAMONDBACK 2188288 · TMA1215625 | US SYNTHETIC CORPORATION | 7 Machines | Registered | 2023 |
| DIAMONDBACK 2122189 · TMA1168997 | Diamondback Tool Co. Inc. | 8 Hand | Registered | 2023 |
| DIAMONDLOCK 1936671 · TMA1147474 | The Dow Chemical Company | 1 Chemicals17 Rubber | Registered | 2022 |
| DIAMONDLACE 1744793 · TMA948849 | Diamond Performance Ltd | 26 Sewing | Registered | 2016 |
| DIAMONDBACK 1720341 · TMA930814 | Sheltered Wings, Inc. | 9 Electronics | Registered | 2016 |
| DIAMONDBACK 1596174 · TMA915141 | Cardiovascular Systems, Inc. a company incorporated under the laws of the state of Delaware | 10 Medical | Registered | 2015 |
| DIAMONDBACK 1575273 · TMA865889 | Triangle Tyre Co. Ltd. | 12 Vehicles | Registered | 2013 |
| DIAMONDBACK 1503288 · TMA826457 | CertainTeed Gypsum, Inc. | 19 Building | Registered | 2012 |
| DIAMONDBACK 1248560 · TMA703637 | Canadian Tire Corporation, Limited | 28 Toys | Registered | 2007 |
| DIAMONDDOCK 1232980 · TMA651060 | Gemological Institute of America, Inc. | 11 Lighting | Registered | 2005 |
| DIAMONDBACK 0894018 · TMA525733 | Andritz Inc. (a Georgia Corporation) | 7 Machines | Registered | 2000 |
| DIAMONDBACK 2344976 · design | Specialized Trailers International Inc. | 35 Advertising | Pending | 2024 |
| DIAMONDBACK 2344975 | Specialized Trailers International Inc. | 35 Advertising | Pending | 2024 |