| ROYTON 1003663 · TMA528574 | AS America, Inc. | 11 Lighting | Registered | 2000 |
| RITON 2085603 · TMA1214014 | RITON USA, LLC | 9 Electronics13 Firearms25 Clothing+1 | Registered | 2023 |
| RYDON 2112858 | DGL Group, Ltd. | 9 Electronics11 Lighting12 Vehicles+2 | Pending | 2021 |
| RAYTHEON 0992869 · NFLD2869 | RAYTHEON COMPANY (A DELAWARE CORPORATION) | 6 Metal7 Machines9 Electronics+4 | Registered | 1947 |
| RAYTHEON 0243027 · TMA110129 · design | RAYTHEON COMPANY | 7 Machines9 Electronics11 Lighting+1 | Registered | 1958 |
| "RAYTHEON" 0191262 · UCA24486 | RAYTHEON COMPANY | 7 Machines9 Electronics11 Lighting | Registered | 1946 |
| RTN 1645342 · TMA890810 | Rapid Time Networks Inc. | 35 Advertising36 Finance41 Education | Registered | 2014 |
| RTOWN 1637691 · TMA898779 | Cart Before Horse Holdings Inc. | 35 Advertising41 Education42 Science | Registered | 2015 |
| RTN 1333306 · TMA713139 | Racetrack Television Network, LLC, a Delaware limited liability corporation | 38 Telecommunications41 Education | Registered | 2008 |
| ROTOM 1278005 · TMA673560 | ALLTEMP PRODUCTS COMPANY LIMITED | 7 Machines9 Electronics | Registered | 2006 |
| Rodon 2286455 | an individual | 1 Chemicals4 Oils35 Advertising | Pending | 2023 |
| RYTM 2275187 | an individual | 9 Electronics | Pending | 2023 |
| RETHONE 2254961 · TMA1274531 | Shenzhen Yuanjingxin Hardware & Plastic Mould Co.LTD | 7 Machines | Registered | 2024 |
| RITEONE 1543986 · TMA836474 | NIGHTINGALE CORP. a legal entity | 20 Furniture | Registered | 2012 |
| RHYTHM 2154214 · TMA1234447 | Rhythm Energy, Inc. | 35 Advertising38 Telecommunications | Registered | 2024 |
| RHYTHM 2026782 · TMA1116601 · design | RHYTHM SUPERFOODS, LLC | 29 Meat | Registered | 2021 |
| RETINA 2018428 · TMA1113666 | Apple Inc. | 9 Electronics | Registered | 2021 |
| !!RHYTHM 2003465 · TMA1146525 · design | Rhythm Pharmaceuticals, Inc. | 5 Pharmaceuticals42 Science | Registered | 2022 |
| ROOTDOWN 1957907 · TMA1233059 | HGCI, Inc. | 1 Chemicals | Registered | 2024 |
| RHYTHM 1877980 · TMA1079313 | Rhythm Pharmaceuticals, Inc. | 5 Pharmaceuticals42 Science | Registered | 2020 |
| RETINA 1873070 · TMA1061367 | X-Technology Swiss GmbH | 25 Clothing | Registered | 2019 |
| RADEON 1755997 · TMA1018678 | ATI Technologies ULC | 9 Electronics | Registered | 2019 |
| RYTHME 1693784 · TMA923544 | Cogeco Media Inc. | 38 Telecommunications41 Education | Registered | 2015 |
| RITANI 1683797 · TMA928827 | Ritani, LLC | 14 Jewellery35 Advertising | Registered | 2016 |
| RYTHMO 1671764 · TMA965833 | Dynamic Intelligent Holdings Inc. | 14 Jewellery15 Musical16 Paper+3 | Registered | 2017 |