| ROCKALOTS 2062743 · TMA1130062 | HASBRO, INC. | 28 Toys | Registered | 2022 |
| RegCloud 1981584 · TMA1096013 | Adenza, Inc. | 42 Science | Registered | 2021 |
| ROCKSOLID 1637600 · TMA911711 | Citadel Restoration and Repair Inc. | 1 Chemicals2 Paints | Registered | 2015 |
| ROCKLATH 0143899 · TMDA46172 | CGC INC. | 6 Metal19 Building | Registered | 1929 |
| RockSolid 2265411 | Owner not listed | 37 Construction40 Treatment42 Science | Pending | 2023 |
| ROCKSOLID 2142569 | MANITOULIN TRANSPORT INC. | 35 Advertising39 Transport | Pending | 2021 |
| REGSHIELD 2250616 · TMA1226400 | Owner not listed | 9 Electronics36 Finance42 Science | Registered | 2024 |
| RESÖLUTION 2135151 · TMA1232148 | Oozex Licensing, LLC | 3 Cosmetics34 Tobacco | Registered | 2024 |
| RICHELET 2019079 · TMA1157077 | The Procter & Gamble Company | 3 Cosmetics | Registered | 2022 |
| REXXOLIDE 1997069 · TMA1121646 | Dechra Limited | 5 Pharmaceuticals | Registered | 2022 |
| RIGLITE 1980595 · TMA1134599 | an individual | 9 Electronics25 Clothing | Registered | 2022 |
| ROZLYTREK 1965249 · TMA1073953 · design | an individual | 5 Pharmaceuticals41 Education44 Medical | Registered | 2020 |
| RESOLUTE 1959532 · TMA1260435 | Resolute Funds Limited | 9 Electronics16 Paper36 Finance | Registered | 2024 |
| ROZLYTREK 1954150 · TMA1070157 | an individual | 5 Pharmaceuticals | Registered | 2020 |
| REZULTEO 1939801 · TMA1175381 | an individual | 35 Advertising38 Telecommunications41 Education | Registered | 2023 |
| RESALYTICS 1925315 · TMA1144970 | Hoot Research Inc. | 35 Advertising36 Finance42 Science | Registered | 2022 |
| ROXILTREK 1919051 · TMA1071375 | an individual | 5 Pharmaceuticals | Registered | 2020 |
| RICOLTA 1912462 · TMA1119197 | Groupe Restos La Pizzaiolle Inc. | 14 Jewellery16 Paper21 Housewares+8 | Registered | 2022 |
| REZOLUTE 1900315 · TMA1084382 | Rezolute, Inc. | 5 Pharmaceuticals42 Science | Registered | 2020 |
| RXULTI 1876722 · TMA1072452 | OTSUKA PHARMACEUTICAL CO. LTD. | 5 Pharmaceuticals | Registered | 2020 |
| REXULTI 1867377 · TMA1088409 | OTSUKA PHARMACEUTICAL CO. LTD. | 10 Medical | Registered | 2020 |
| REACHELITE 1861206 · TMA1075094 | an individual | 11 Lighting | Registered | 2020 |
| ROSCOLED 1836032 · TMA1020637 | Rosco Laboratories, Inc. | 11 Lighting | Registered | 2019 |
| Resoltz 1816713 · TMA1075676 | PARTNAR ANIMAL HEALTH INC | 5 Pharmaceuticals | Registered | 2020 |
| RESELTYS 1815125 · TMA1038635 | Can-Fite Biopharma Ltd | 5 Pharmaceuticals | Registered | 2019 |